Alternatives to JSONedit
Compare JSONedit alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to JSONedit in 2026. Compare features, ratings, user reviews, pricing, and more from JSONedit competitors and alternatives in order to make an informed decision for your business.
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1
UltraEdit
IDM Computer Solutions
For almost 3 decades, UltraEdit has been the go-to text editor for 2+ million users and many Fortune 100/500/1000 enterprise customers. Renowned for its power and performance in handling and processing huge files and data, UltraEdit is also a highly configurable and fully themed code editor with support for nearly any source language or syntax. Often called the "Swiss army knife" of text editors, UltraEdit is a powerful tool for users in a wide range of responsibilities and industries. From programming and project management to large file manipulation, from data sorting and column/block editing to remote (FTP/SFTP) file operations, from advanced file searching and text data reformatting, there's almost no problem that UltraEdit can't solve in the world of text editing. UltraEdit is available for Windows, Mac, and Linux and is supported by a professional development team and customer service staff located in the USA. -
2
JSON Editor
VDT LABS
JSON Editor, developed by VDT Labs, is an application designed to facilitate the creation, visualization, modification, validation, formatting, and saving of JSON documents. It includes a built-in HTTP client, supporting HTTP verbs such as GET, POST, PUT, DELETE, and HEAD, to facilitate the fetching and uploading of content, including binary data. Additional functionalities encompass multiple sibling selection, sorting capabilities, finding and replacing with regular expression support, and customization options for font and appearance. Notably, JSON Editor operates entirely locally on the user's computer, ensuring 100% privacy, as no data is sent outside the device. Provides a structured, error-proof interface for manipulating JSON data, allowing users to add, reorder, delete, copy, and paste items with ease. Enables direct interaction with raw JSON text, featuring syntax coloring, auto-indentation, and line numbers.Starting Price: $7.99 one-time payment -
3
JSON Editor Online
JSON Editor Online
JSON Editor Online is a versatile tool designed for viewing, editing, formatting, repairing, comparing, querying, transforming, validating, and sharing JSON data. It offers multiple editing modes, text, tree, and table, to accommodate various user preferences. It supports large JSON files up to 512 MB and provides functionalities such as JSON Schema validation, JSON-to-CSV conversion, and offline usage. Users can load and save JSON data through various methods, including clipboard operations, drag-and-drop, disk storage, and URLs. The tool also features a "Smart JSON Formatting" option for more compact and readable JSON presentations. While the free version includes ads, subscription options are available for an ad-free experience and additional features like private cloud document storage. Starting Price: $3 per month -
4
CudaText
CudaText
CudaText is a cross-platform text editor, written in Object Pascal. It is open source project and can be used free of charge, even for business. It starts quite fast on Linux on CPU Intel Core i3 3GHz. It is extensible by Python add-ons, plugins, linters, code tree parsers, external tools. Syntax parser is feature-rich, from EControl engine. Syntax highlight for lot of languages (270+ lexers). Code tree structure of functions/classes/etc, if lexer allows it. Code folding, multi-carets and multi-selections. Find/Replace with regular expressions. Configs in JSON format. Including lexer-specific configs. Tabbed UI, with a split view to primary/secondary, and a split window to 2/3/4/6 groups of tabs. Command palette, with fuzzy matching, minimap, and micromap. Shows unprinted whitespace and offers support for many encodings. Customizable hotkeys. Binary/Hex viewer for files of unlimited size (can show 10 Gb logs). -
5
JSONBuddy
JSONBuddy
JSONBuddy is a comprehensive JSON editor and validator designed to streamline the creation and management of JSON and JSON Schema files. It offers a range of features, including a text editor with syntax coloring, auto-completion, and code folding, as well as a grid-style editor that simplifies the process of building JSON structures. It ensures error-free JSON through built-in syntax checking and validation against JSON Schema standards, supporting Drafts 4, 6, 7, 2019-09, and 2020-12. Additionally, JSONBuddy provides functionalities for converting between JSON, XML, and CSV formats, importing CSV data to generate JSON, and generating HTML documentation from JSON Schemas. For large JSON files, it offers robust support, allowing users to open, navigate, and edit files with thousands or even millions of lines efficiently.Starting Price: $39 one-time payment -
6
Online JSON Editor
Online JSON Editor
The Online JSON Editor is a tool designed to facilitate the viewing, editing, formatting, validating, and beautifying of JSON data. It offers a user-friendly interface that allows for quick modifications of complex JSON code and supports multiple methods for code input, including direct typing, copy-pasting, file uploads, and URL retrieval. Online JSON Editor provides various code views such as tree, form, code, and text, enabling users to interact with JSON data in their preferred format. Additional features include real-time formatting, minification without altering code integrity, undo and redo functionalities, error highlighting with descriptive messages, and compatibility across multiple devices.Starting Price: Free -
7
Smart JSON Editor
Smart JSON Editor
Smart JSON Editor is a powerful application tailored for app and web developers to create, edit, and manage JSON data structures efficiently. It offers a comprehensive suite of features, including a JSON tree tool for intuitive data visualization, value transformers for generating and modifying JSON values, and an embedded HTTP server for testing within applications. Users can import and export JSON files via various methods such as file uploads, pasteboard, and iCloud integration. The application supports the creation of smart objects (classes) that maintain key structures, facilitating the organization of associative arrays. Additionally, Smart JSON Editor provides advanced functionalities like JSON Path navigation, API request management with group and endpoint hierarchies, and token transformers for dynamic value composition in API headers and parameters. It also features search and filter capabilities, an iCloud library for asset storage, local server connections, etc.Starting Price: Free -
8
Helix Editor
Helix Editor
Helix Editor is a powerful, modern text editor designed for developers seeking a fast, customizable, and efficient editing experience. Built with a focus on productivity, Helix uses a modal editing style inspired by Vim, which allows users to navigate, select, and manipulate text seamlessly through intuitive keyboard shortcuts. It offers a robust set of features including syntax highlighting, multi-caret editing, and support for languages like Rust, Python, and JavaScript. Helix also integrates with the Tree-sitter parsing library for precise syntax-aware editing, making it easier to work with complex code structures. With a minimal interface and a strong focus on performance, Helix Editor provides an ideal environment for programmers who prioritize speed and flexibility in their development workflow.Starting Price: Free -
9
JSON Crack
ToDiagram
JSON Crack is an open source tool that transforms complex data formats, including JSON, YAML, CSV, XML, and TOML, into interactive, visually intuitive graphs, enhancing data comprehension and analysis. Users can input data directly, upload files, or provide URLs, and it automatically generates a visual tree graph. It supports data conversion between formats, such as JSON to CSV or XML to JSON, and includes features like JSON formatting, validation, and code generation for TypeScript interfaces, Golang structs, and JSON Schemas. Advanced tools are available for decoding JWTs, executing JQ queries, and performing JSON Path commands. Users can export visualizations as PNG, JPEG, or SVG files. All data processing occurs locally on the user's device, ensuring data privacy. Starting Price: Free -
10
Liquid Studio
Liquid Technologies
Liquid Studio provides an advanced toolkit for XML and JSON development along with Web Service Testing and Data Mapping and Data Transformation tools. The Development Environment contains a complete set of tools for designing XML and JSON data structures and schemas. These tools provide editing, validating and advanced transformation capabilities. For novice or expert, the intuitive interface and comprehensive features will help you save time and money delivering a successful project. Visualize and edit an abstracted view of your XML schema(XSD) using an intuitive user interface, and validate your XSD against the W3C standards.Includes split graphical and text views, intellisense, syntax highlighting, drag and drop, copy and paste, and multi-step undo/redo. Visualize and edit an abstracted view of your JSON schema using an intuitive user interface, and validate your JSON Schema against the IETF standards.Starting Price: $149 one-time payment -
11
Json Genie
Tuyware
Json Genie (Viewer & Editor) is an application developed by Tuyware, designed to provide a comprehensive solution for managing JSON files on mobile devices. By leveraging the default file-opening methods, it enables users to access JSON files from various sources available on their devices. It offers functionalities such as cloning arrays, objects, and values; adding new elements; editing existing ones; and creating files from scratch. Additionally, Json Genie supports opening multiple files simultaneously, facilitating efficient data comparison and editing.Starting Price: Free -
12
Emacs
GNU
At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Content-aware editing modes, including syntax coloring, for many file types. Complete built-in documentation, including a tutorial for new users. Full Unicode support for nearly all human scripts. Highly customizable, using Emacs Lisp code or a graphical interface. A wide range of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, IRC client, and more. A packaging system for downloading and installing extensions. Built-in support for arbitrary-size integers. Text shaping with HarfBuzz. Native support for JSON parsing. Better support for Cairo drawing. Portable dumping used instead of unexec. Support for XDG conventions for init files. Additional early-init initialization file. Built-in support for tab bar and tab-line. Support for resizing and rotating of images without ImageMagick. -
13
JSON Formatter
JSON Formatter
JSON Formatter's JSON Editor is a user-friendly tool designed for editing, viewing, and analyzing JSON data. It offers features such as formatting, beautifying, and validating JSON, as well as converting JSON to XML, CSV, and YAML formats. Users can load JSON data via file upload or URL and share edited JSON through generated links. It ensures that data is not sent to external servers, thus enhancing security and performance. -
14
Quiver
Quiver
Quiver is a notebook built for programmers. It lets you easily mix text, code, Markdown and LaTeX within one note, edit code with an awesome code editor, live preview Markdown and LaTeX, and find any note instantly via the full-text search. A note in Quiver is comprised of cells, snippets of text, code, Markdown, LaTeX (via MathJax) or diagrams (sequence diagram, flowchart). You can freely mix different cell types within one note. You can set different languages for different code cells, too. The programmer's notebook should make code editing effortless. Quiver packs the awesome ACE code editor in code cells, with syntax highlighting support for more than 120 languages, over 20 themes, automatic indent and outdent, and much more. Quiver lets you write in Markdown with inline formatting and custom CSS options. A live preview window renders Markdown as you type. Quiver uses MathJax to typeset mathematical equations written in LaTeX. -
15
XML Notepad
Microsoft
XML Notepad provides a simple intuitive User Interface for browsing and editing XML documents. Tree View synchronized with Node Text View for quick editing of node names and values. Drag/drop support for easy manipulation of the tree, even across different instances of XML Notepad and from the file system. Good performance on large XML documents, loading a 3mb document in about one second. Instant XML schema validation while you edit with errors and warnings shown in the task list window. Intellisense based on expected elements and attributes and enumerated simple type values. Support for custom editors for date, dateTime and time datatypes and other types like color. Handy nudge tool bar buttons for quick movement of nodes up and down the tree. Handy "XML statistics" tool to summarize info about your XML documents.Starting Price: Free -
16
nano
nano
GNU nano was designed to be a free replacement for the Pico text editor, part of the Pine email suite from The University of Washington. It aimed to "emulate Pico as closely as is reasonable and then include extra functionality". The Debian GNU/Linux distribution, known for its strict standards in distributing truly "free" software (i.e. software with no restrictions on redistribution), would not include a binary package for Pine or Pico. Many people had a serious dilemma: they loved these programs, but the versions available at the time were not truly free software in the GNU sense of the word. GNU nano is a small and friendly text editor. Besides basic text editing, nano offers features like undo/redo, syntax coloring, interactive search-and-replace, auto-indentation, line numbers, word completion, file locking, backup files, and internationalization support. Starting with version 4.0, nano no longer hard-wraps an overlong line by default. -
17
JSON Viewer
JSONViewer.tools
jsonviewer.tools — a powerful and interactive JSON visualization platform that helps users easily view, analyze, and explore complex JSON data. Graph & Tree Visualization – Interactive 2D and compact graph modes with zoom, pan, and hover link visualization. Table View for CSV – Upload CSV files and view them in a clean, sortable table format. 3D Visualization – External 3D JSON graph visualization option. File Support – Upload and visualize JSON, CSV, and YAML files. Interactive Graph Export – Double-click any JSON key to generate a graph for that key and export it as PNG. Direction Control – Change the graph direction (horizontal/vertical). Theme Customization – Switch between light/dark or custom color themes. Comparison Tool – Compare two JSON files side by side. Dummy JSON Generator – Quickly generate sample JSON for testing or demo use.Starting Price: $1.99/month -
18
Typora
Typora
Typora gives you a seamless experience as both a reader and a writer. It removes the preview window, mode switcher, syntax symbols of markdown source code, and all other unnecessary distractions. Instead, it provides a real live preview feature to help you concentrate on the content itself. Typora allows you to manage your files easily, providing both file tree panel and articles (file list) side panel, allows you to manage your files easily. Organize your files your way, including putting in sync services, like Dropbox or iCloud. Automatically see the Outline structure of your documents in outline panel, which allows you to quickly go through the document and jump to any section with one click. Export to PDF with bookmarks. Go further and export or import. More formats, including docx, OpenOffice, LaTeX, MediaWiki, Epub, etc, can be exported or imported. See how large your document is in words, characters, lines, or reading minutes. -
19
MongoLime
MongoLime
MongoLime allows you to easily manage and precisely control your MongoDB connections. Viewing and managing documents. Statistics, Indexes and other operations. Create and modify documents with a convenient MongoLime editor. Use raw JSON editor for complex documents. Search for documents using query builder. Save searches for a quick access. Export Databases and Collections in a JSON format as a ZIP archive. MongoLime is an application created to work with MongoDB databases on mobile devices and tablets running Android. The application’s interfaces are designed for easy data collection management. The application allows you to connect to MongoDB databases directly or in the Replica Set mode.Starting Price: $16 one-time payment -
20
dbKoda
dbKoda
dbKoda’s rich code editor allows you to compose MongoDB queries and scripts with syntax highlighting, auto-complete and code formatting. View output in foldable JSON, tabular format or as a chart. Generate visual explain plans with a single click. The explain plan viewer will suggest indexes that may improve performance, and provide one-button creation of those indexes. Build simple queries or complex aggregates using the graphical query builder. dbKoda lets you perform administrative activities using fil-in-the-blanks actions from the database tree. Manage configuration, user roles, logging, database storage, and data import/export without having to lookup obscure MongoDB syntax. We construct the appropriate commands as you fill-in-the-blanks, so you can re-use the command in admin scripts or tweak the syntax as desired. dbKoda includes an SSH terminal that allows command line access to the server OS, so you can issue OS commands directly from within the dbKoda product.Starting Price: Free -
21
Toolaska
Toolaska
Toolaska is a web-based platform that provides free online tools for developers, students, and tech professionals. It brings together a variety of utilities such as text converters, JSON formatters, API testers, encoders, hash generators, style converters, and time tools in one clean and easy-to-use place. Built with a focus on speed, simplicity, and privacy, Toolaska is designed to save time and reduce effort by offering reliable tools without ads, clutter, or distractions. It is continuously updated with new features to meet the real needs of developers and learners, making it a secure and all-in-one toolbox for everyday technical tasks.Starting Price: $0 -
22
Gilhari
Software Tree
We’re thrilled to announce that Software Tree has won a 2021 DEVIES Award in the code frameworks/libraries category for its innovative Gilhari microservice framework. Gilhari makes it easy for developers to quickly develop high-performance, database-agnostic, and Docker-compatible RESTful applications that need to interact with JSON data in cloud or on-premises. The object-oriented world and the relational world are conceptually different. Manually writing the verbose mapping logic to bridge the gap between the object-oriented and relational artifacts is tedious and time-consuming. Software Tree’s ORM technology frameworks are lightweight in their design and implementation and provide a lightweight feel in their usage. The lightweight aspects of our ORM technology do not compromise on its power and functionality, though. This results in faster development and deployment of modern applications that require flexible object-oriented access to relational data. -
23
Zed
Zed Industries
Zed is a next-generation code editor designed for high-performance collaboration with humans and AI. Written from scratch in Rust to efficiently leverage multiple CPU cores and your GPU. Integrate upcoming LLMs into your workflow to generate, transform, and analyze code. Chat with teammates, write notes together, and share your screen and project. Multibuffers compose excerpts from across the codebase in one editable surface. Evaluate code inline via Jupyter runtimes and collaboratively edit notebooks. Support for many languages via Tree-sitter, WebAssembly, and the Language Server Protocol. Fast native terminal tightly integrates with Zed's language-aware task runner and AI capabilities. First-class modal editing via Vim bindings, including features like text objects and marks. Zed is built by a global community of thousands of developers. Boost your Zed experience by choosing from hundreds of extensions that broaden language support, offer different themes, and more.Starting Price: Free -
24
Karate
Karate
Karate is the only open-source tool to combine API test automation, mocks, performance-testing and even UI automation into a single, unified framework. The BDD syntax popularized by Cucumber is language-neutral and easy for even non-programmers. Assertions and HTML reports are built-in, and you can run tests in parallel for speed. There’s also a cross-platform stand-alone executable for teams not comfortable with Java. You don’t have to compile code. Just write tests in a simple, readable syntax - carefully designed for HTTP, JSON, GraphQL and XML. And you can mix API and UI test automation within the same test script. It is worth pointing out that JSON is a ‘first-class citizen’ of the syntax such that you can express payload and expected data without having to use double-quotes and without having to enclose JSON field names in quotes. There is no need to ‘escape’ characters like you would have had to in Java or other programming languages.Starting Price: Free -
25
ITyStudio
ITycom
Simulate the most diverse situations (in management, sales force, communications, etc.) using ITyStudio and its library of characters and varied settings. Use avatars and choose their movements and attitudes from a variety of available options free of charge. Integrate maps with clickable boxes in your simulations, resulting in several possible scenes within your module. Simulate the handling of products and services by integrating elements of your choice within your tree structure. Create rich and varied product training with a genuine choice of actions, by alternating manipulation and discussions between operators and managers for example. Build a rich and diversified tree structure very simply, for a genuinely interactive training experience. -
26
Nova
Panic
If we're being honest, Mac apps are a bit of a lost art. There are great reasons to make cross-platform apps — to start, they're cross-platform — but it's just not who we are. Founded as a Mac software company in 1997, our joy at Panic comes from building things that feel truly, well, Mac-like. Long ago, we created Coda, an all-in-one Mac web editor that broke new ground. But when we started work on Nova, we looked at where the web was today, and where we needed to be. It was time for a fresh start. It all starts with our first-class text-editor. It's new, hyper-fast, and flexible, with all the features you want: smart autocomplete, multiple cursors, a Minimap, editor overscroll, tag pairs and brackets, and way, way more. For the curious, Nova has built-in support for CoffeeScript, CSS, Diff, ERB, Haml, HTML, INI, JavaScript, JSON, JSX, Less, Lua, Markdown, Perl, PHP, Python, Ruby, Sass, SCSS, Smarty, SQL, TSX, TypeScript, XML, and YAML. -
27
Eclipse Theia
Eclipse Foundation
Eclipse Theia is an extensible platform to develop multi-language Cloud & Desktop IDEs with state-of-the-art web technologies. Not sure whether you need a web or desktop version or both? With Theia you can develop one IDE and run it in browsers or native desktop application from a single source. The Theia project is hosted at the Eclipse Foundation, a not-for-profit corporation, and is developed by a diverse community. Unlike other "open-source" projects, projects hosted at an Open-Source Foundation are protected against single-vendor decisions against the interest of the diverse community. Theia is designed in a modular way to allow extenders and adopters customizing and extending every aspect of it. Composing a custom IDE-like product is as easy as listing all needed extensions in a package.json file. Adding new functionality by implementing your own extensions is easy, too and provides all the flexibility you need.Starting Price: $0 -
28
Caret
Caret
Based on the amazing Ace editing component, Caret brings professional-strength text editing to Chrome OS. With Caret, you no longer need to install a second OS to get what other platforms take for granted: a serious editor for local files, aimed at working programmers. Caret offers syntax highlighting for a wide variety of languages, and all of the standard themes that come with Ace, including emulations of coloring from other editors like Eclipse, XCode, and the Chrome Dev Tools. Once you've gotten used to making many changes with just a keystroke or two, it's hard to go back to just one cursor. Caret offers multiple cursors and selections, and support for Sublime keybindings like Ctrl-D (select next match). Why bother learning keyboard shortcuts? With the command palette (Ctrl-Shift-P), you can just start typing what you want, Caret will fuzzy-search the menu configuration, find the command you want, and execute it for you. You never need to touch the mouse again. -
29
PostCSS
PostCSS
PostCSS is a versatile tool that transforms CSS using JavaScript plugins, enabling a wide range of functionalities such as linting, supporting variables and mixins, transpiling future CSS syntax, and inlining images. It serves as a framework for developing CSS tools and can be utilized to create template languages similar to Sass and LESS. The core of PostCSS comprises a CSS parser that generates an abstract syntax tree, a set of classes that form the tree, a CSS generator that produces a CSS line for the object tree, and a code map generator for CSS changes. Plugins operate on the object tree, analyzing and modifying it before PostCSS generates a new CSS string reflecting these changes. Notable plugins include Autoprefixer, which adds vendor prefixes, and Stylelint, a modern CSS linter that enforces consistent conventions and avoids errors in stylesheets. PostCSS is employed by industry leaders such as Wikipedia, Twitter, Alibaba, and JetBrains. -
30
Investor
Neutron Systems
Investor is a software for financial analysis, estimation, pricing and profit calculation of different investment strategies (Hedge, Arbitrage, Speculate, etc.) of underlying assets (stocks, currencies, etc.) and derivatives (Options, Forwards, etc.). Investor includes analysis of different combinations of Calls, Puts, portfolios of securities and Options, Spreads (Bull/Bear, Butterfly, Calendar), Combinations (Strangles, Straddles, Strips, Straps) and exact and approximate methods of Option pricing. It performs Black-Scholes analysis for European Options, analytic approximations for American Options, it constructs binomial trees. Investor's help panes describe every part of the software in detail with underlying formulas and assumptions. Investor builds graphs and allows graph dynamic interactive manipulation by changing values in text fields and sliders. -
31
Nooku
Logic Labs Digital Solutions
Nooku is a low-code platform and desktop application designed for less technical designers or developers. It enables users to create web apps quickly. Nooku is similar to VS Code but is specifically designed for non-coders or those with minimal coding experience. Nooku not only lets users design their applications, but also allows them to add logic through its workflow builder. How Nooku works: Unlike other no-code tools on the market, Nooku operates directly on your system. While most no-code platforms store your app data in JSON format and render that data into the user interface, nooku interacts directly with your files. Each time you create, open, or edit a new file (page, component, etc.), Nooku reads that file directly from your filesystem. It then generates an Abstract Syntax Tree (AST) for that file and renders that AST in the Nooku editor.Starting Price: $15/month -
32
Q-Dir
Softwareok.com
The quad-directory-explorer makes your files and folders easy to manage, either installed or as a portable Windows program as an alternative freeware to Microsoft's File Explorer. Fast and easy access to your hard disks ergo advanced file management for network folders, USB sticks, floppy disks, and other storage devices Is the most popular tool from the category file management on Softwareok! File management in 4 windows with tabs. Folder size with extra information. Color filter for files and folders. Classic and modern address bar. Directory structure with visible tree branches. Print what you see in explorer views. Based on the MS Windows OS File Manager with full Unicode support. Q-Dir is a great alternative file manager for Windows with an amazing Quadro-view technique. Q-Dir gives you extra useful functions to make you happy. Save time by reducing mouse clicks and hand movements. Q-Dir does not have to be installed and can be executed easily from any location.Starting Price: Free -
33
ExtendsClass
ExtendsClass
ExtendsClass provides tools directly usable in a browser. It saves you from having to install add-ons to your browser in order to add features. You have at your disposal syntax validators, code formatters, testers, HTTP clients, mock server, but also a SQLite browser. These are small and easy-to-use tools that can help when you do not want to install software on your workstation. The available tools allow you to convert data (CSV, TSV, XML and JSON), compare data (Text, XML, JSON), format data (XML, JSON) and also encode and decode base 64 data.Starting Price: Free -
34
Semgrep
r2c
Modern security teams are “paving the road” for developers — enforcing code guardrails on every commit. r2c’s Semgrep can eliminate vulnerability classes organization-wide. Scale your security team with lightweight static analysis. Semgrep is a fast, open-source, static analysis tool that excels at expressing code standards — without complicated queries — and surfacing bugs early in the development flow. Precise rules look like the code you’re searching; no more traversing abstract syntax trees or wrestling with regexes. Start right away with 900+ rules and SaaS infrastructure to get fast results in your editor, at commit-time, or in CI. When off-the-shelf rules aren’t enough, quickly and intuitively write custom rules to express your unique code standards. Rules look like the code you’re searching. For example, rules for Go look like Go. Find function calls, class or method definitions, and more without having to understand abstract syntax trees or wrestle with regexes.Starting Price: $40 per month -
35
Atom
GitHub
Atom is a hackable text editor for the 21st century, built on Electron, and based on everything we love about our favorite editors. We designed it to be deeply customizable, but still approachable using the default configuration. A text editor is at the core of a developer’s toolbox, but it doesn't usually work alone. Work with Git and GitHub directly from Atom with the GitHub package. Create new branches, stage and commit, push and pull, resolve merge conflicts, view pull requests and more—all from within your editor. The GitHub package is already bundled with Atom, so you're ready to go! Atom works across operating systems. Use it on OS X, Windows, or Linux. Search for and install new packages or create your own right from Atom. Atom helps you write code faster with a smart and flexible autocomplete. Easily browse and open a single file, a whole project, or multiple projects in one window.Starting Price: Free -
36
coverage
pub.dev
Coverage provides coverage data collection, manipulation, and formatting for Dart. Collect_coverage collects coverage JSON from the Dart VM Service. format_coverage formats JSON coverage data into either LCOV or pretty-printed format.Starting Price: Free -
37
RaptorXML Server
Altova
In today’s organizations, Big Data trends and XBRL mandates are producing huge, ever increasing amounts of XML, XBRL, JSON, and Avro data. Now, there is finally a modern, hyper-fast engine to validate, process, transform, and query it all. RaptorXML provides strict conformance with all relevant XML, XBRL, and JSON standards and is continuously submitted to rigorous regression and conformance testing against Altova’s substantial in-house collection of conformance and test suites, as well as industry test suites and customer use-cases. JSON popularity is ever rising, and alongside it the requirement to ensure validity of transacted data. RaptorXML has you covered with JSON syntax checking, JSON validation, JSON Schema validation.Starting Price: €400 one-time payment -
38
StackBlitz WebContainers
StackBlitz
StackBlitz WebContainers bring a full Node.js runtime directly into the browser, enabling instant, secure, and interactive development environments inside any web app. Developers can run native npm, pnpm, and yarn at speeds up to 10× faster than local, without needing external servers. The API lets you boot containers, mount files, install dependencies, and run dev servers entirely client-side. WebContainers support major frameworks, Wasm workloads, and modern browsers, making them ideal for tutorials, sandboxes, docs, and AI-driven developer tools. With isolated, disposable environments, teams can offer a seamless coding experience that feels native and eliminates backend overhead. The result is a powerful platform that transforms web apps into full-featured IDEs. -
39
Geany
Geany
Geany is a powerful, stable and lightweight programmer's text editor that provides tons of useful features without bogging down your workflow. It runs on Linux, Windows and MacOS is translated into over 40 languages, and has built-in support for more than 50 programming languages. One the primary reasons for Geany's existence is that there is a need for a decent, GUI, lightweight, cross-platform, flexible and powerful IDE/editor. Many editors meet one or more of these requirements but fall short on others. Using the GPL v2 license, Geany assures that not only can you customize and hack it, but that everyone benefits from changes the community makes. Many parts of Geany are heavily customizable like color themes (Geany Themes) or adding new filetypes. Furthermore, Geany provides many settings to let you adjust it to your needs and preferences. Many supported filetypes including popular programming languages like C, Java, PHP, HTML, JavaScript, etc. -
40
AutoIt
AutoIt
AutoIt v3 is a freeware BASIC-like scripting language designed for automating the Windows GUI and general scripting. It uses a combination of simulated keystrokes, mouse movement, and window/control manipulation in order to automate tasks in a way not possible or reliable with other languages. We looked at many editors to see which one was the most useful editor for AutoIt. We found SciTE and saw its potential and wrote a customized Lexer for the syntax highlighting and syntax folding and created a special installer called SciTE4AutoIt3. AutoIt was initially designed for PC "roll out" situations to reliably automate and configure thousands of PCs. Over time it has become a powerful language that supports complex expressions, user functions, loops and everything else that veteran scripters would expect.AutoIt is also very small, self-contained and will run on all versions of Windows out-of-the-box with no annoying "runtimes" required.Starting Price: Free -
41
Sublime Text
Sublime HQ
A sophisticated text editor for code, markup and prose. Use Goto Anything to open files with only a few keystrokes, and instantly jump to symbols, lines or words. Make ten changes at the same time, not one change ten times. Multiple selections allow you to interactively change many lines at once, rename variables with ease, and manipulate files faster than ever. The Command Palette holds infrequently used functionality, like sorting, changing the syntax and changing the indentation settings. With just a few keystrokes, you can search for what you want, without ever having to navigate through the menus or remember obscure key bindings. Sublime Text has a powerful, Python API that allows plugins to augment built-in functionality. Package Control can be installed via the command palette, providing simple access to thousands of packages built by the community.Starting Price: $80 one-time fee -
42
JSON
JSON
JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language. JSON is built on two structures: 1. A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictionary, hash table, keyed list, or associative array. 2. An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence. These are universal data structures. Virtually all modern programming languages support them in one form or another.Starting Price: Free -
43
jEdit
jEdit
jEdit is a mature programmer's text editor with hundreds (counting the time developing plugins) of person-years of development behind it. While jEdit beats many expensive development tools for features and ease of use, it is released as free software with full source code, provided under the terms of the GPL 2.0. Built-in macro language; extensible plugin architecture. Hundreds of macros and plugins available. Plugins can be downloaded and installed from within jEdit using the "plugin manager" feature. Supports a large number of character encodings including UTF8 and Unicode. Highly configurable and customizable. Every other feature, both basic and advanced, you would expect to find in a text editor. -
44
JetBrains Fleet
JetBrains
Built from scratch, based on 20 years of experience developing IDEs. JetBrains Fleet uses the IntelliJ code-processing engine, with a distributed IDE architecture and a reimagined UI. We built Fleet to be a fast and lightweight text editor for when you need to quickly browse and edit your code. It starts up in an instant so you can begin working immediately, and it can easily transform into an IDE, with the IntelliJ code-processing engine running separately from the editor itself. Fleet inherits the things that developers love the most from IntelliJ-based IDEs – project and context aware code completion, navigation to definitions and usages, on-the-fly code quality checks, and quick-fixes. Fleet’s architecture is designed to support a range of configurations and workflows. You can simply run Fleet just on your machine, or move some of the processes elsewhere – for example by locating the code processing in the cloud. -
45
Apache Usergrid
Apache
Whether you need to support one app or a hundred, Usergrid is your backend. As easy as a LAMP stack, but built for mobile. Get apps to production in record time and stop wasting cycles writing server-side code. Complete SDKs for iOS, Android, HTML5/JS, Node.js, Ruby, Java, .NET, and PHP. Open source since 2011. Sign up users, log in, reset passwords, and more, in just one API call. You can put users in groups, assign roles or permissions, let users follow each other, and access everything via OAuth 2.0, without writing a single line of server code. If you can express it in JSON, we can store it. Underneath everything is stored in a standard Cassandra instance, but we’ve added the ability to retrieve data via an SQL-like syntax and manage collections and connections between entities. Our asset storage can handle anything from text files to videos of several terabytes, with automatic content detection and full URL access control.Starting Price: Free -
46
CKEditor 5
CKSource
CKEditor 5 is a modern WYSIWYG rich text editor that can easily accommodate the requirements of businesses and users in the age of digital transformation. It allows software creators and developers to build powerful writing solutions for applications of all sorts, within hours. Thanks to a fully customizable framework, ready-to-use builds, native integrations, extensive documentation, and reliable customer support, the editor can be fully tailored to your needs. To provide users with an all-around streamlined and collaborative writing experience, you can additionally include advanced features such as Track Changes and Comments, Revision History, and (if preferred) Real-time Collaboration! Easy Export to PDF and Word, responsive images, pagination, Markdown input and output support, and robust paste from Word and Google Docs are also popular choices. -
47
Tablecruncher
Tablecruncher
Tablecruncher is a lightweight yet powerful CSV editor for Mac, designed to handle large datasets efficiently. It can open files larger than 2GB, containing over 15 million rows, with a 100MB CSV file loading in under 5 seconds on a dual-core MacBook Pro. It supports various encodings, including UTF-8, UTF-16LE, UTF-16BE, Latin-1 (ISO-8859-1), and Windows 1252, automatically detecting most CSV formats and encodings. Users can utilize JavaScript as a macro language to manipulate CSV files, accessing all cells for content changes and calculations. Tablecruncher allows exporting table data to JSON, producing an array of objects if a header row is present, or an array of arrays otherwise. The find and replace dialog supports pattern searches within the table or selected areas, with Regular Expressions compliant with the ECMAScript 5 standard. It offers four color themes, including a dark mode compatible theme, enhancing user experience.Starting Price: $32.18 one-time payment -
48
listmonk
listmonk
Manage millions of subscribers across many single and double opt-in lists with custom JSON attributes for each subscriber. Query and segment subscribers with SQL expressions. Use the fast bulk importer (~10k records per second) or use HTTP/JSON APIs or interact with the simple table schema to integrate external CRMs and subscriber databases. Simple API to send arbitrary transactional messages to subscribers using pre-defined templates. Send messages as e-mail, SMS, Whatsapp messages or any medium via Messenger interfaces. Use template expressions, logic, and 100+ functions in subject lines and content. Write HTML e-mails in a WYSIWYG editor, Markdown, raw syntax-highlighted HTML, or just plain text.Starting Price: Free -
49
QML
Qt
QML is a declarative language that allows user interfaces to be described in terms of their visual components and how they interact and relate with one another. It is a highly readable language that was designed to enable components to be interconnected in a dynamic manner, and it allows components to be easily reused and customized within a user interface. Using the QtQuick module, designers and developers can easily build fluid animated user interfaces in QML, and have the option of connecting these user interfaces to any back-end C++ libraries. QML is a user interface specification and programming language. It allows developers and designers alike to create highly performant, fluidly animated and visually appealing applications. QML offers a highly readable, declarative, JSON-like syntax with support for imperative JavaScript expressions combined with dynamic property bindings.Starting Price: Free -
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Synaptic
Synaptic
Neurons are the basic unit of the neural network. They can be connected to another neuron or gate connections between other neurons. This allows you to create complex and flexible architectures. Trainers can take any given network regardless of its architecture and use any training set. It includes built-in tasks to test networks, like learning an XOR, completing a Discrete Sequence Recall task or an Embeded Reber Grammar test. Networks can be imported/exported to JSON, converted to workers or standalone functions. They can be connected to other networks or gate connections. The Architect includes built-in useful architectures such as multilayer perceptrons, multilayer long short-term memory networks (LSTM), liquid state machines and Hopfield networks. Networks can also be optimized, extended, exported to JSON, converted to Workers or standalone Functions, and cloned. A network can project a connection to another, or gate a connection between two others networks.
