Browse free open source Source Code Analysis tools and projects below. Use the toggles on the left to filter open source Source Code Analysis tools by OS, license, language, programming language, and project status.

  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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  • Run Any Workload on Compute Engine VMs Icon
    Run Any Workload on Compute Engine VMs

    From dev environments to AI training, choose preset or custom VMs with 1–96 vCPUs and industry-leading 99.95% uptime SLA.

    Compute Engine delivers high-performance virtual machines for web apps, databases, containers, and AI workloads. Choose from general-purpose, compute-optimized, or GPU/TPU-accelerated machine types—or build custom VMs to match your exact specs. With live migration and automatic failover, your workloads stay online. New customers get $300 in free credits.
    Try Compute Engine
  • 1
    Walt

    Walt

    Walt is a JavaScript-like syntax for WebAssembly text format

    Walt is an alternative syntax for WebAssembly text format. It's an experiment for using JavaScript syntax to write to as 'close to the metal' as possible. It's JavaScript with rules. .walt files compile directly to WebAssembly binary format. Writing zero-overhead, optimized WebAssembly is pretty tough to do. The syntax for .wat files is terse and difficult to work with directly. If you do not wish to use a systems language like C or Rust, then you're kind of out of luck. Your best bet (currently) is to write very plain C code, compile that to .wast and then optimize that result. Then you're ready to compile that into the final WebAssembly binary. Provide a thin layer of syntax sugar on top of .wat text format. Preferably porting as much of JavaScript syntax to WebAssembly as possible. This improved syntax should give direct control over the WebAssembly output. Meaning there should be minimal to none post-optimization to be done to the waste code generated.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 2
    Diff-ext is an extension for filemanagers such as Windows Explorer and Nautilus that allows to launch diff/merge tools on selected files.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    l'Editeur SQL
    Editeur SQL, destiné à effectuer des traitements avancés sur des scripts en transact SQL.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    NotepadXX

    NotepadXX

    NotepadXX: A Lightweight, Powerful Text Editor for Every User

    📝 NotepadXX is your all-in-one, cross-platform text editor — lightning-fast, powerful, and designed to boost your productivity. Built with Java and optimized for Windows & Linux, it combines the simplicity of Notepad with advanced features modern developers love. 🔥 Key Highlights: Real-time code linting (ANTLR-powered) with tooltips Live Markdown preview (split view or pop-out) Built-in terminal, file explorer & browser launchers 6 beautiful themes (Dark, Light, Darcula, macOS) Blazing-fast UI with JavaFX/Swing hybrid Fully offline & privacy-respecting (zero telemetry) 🐞 Bug Fixes in v1.2.1 Fixed crash when Markdown Preview is triggered on systems without JavaFX (now shows a friendly error message). Prevented JavaFX WebView from initializing on headless systems to avoid startup errors. Resolved fallback issue: now switches correctly to Swing JFileChooser when JavaFX is unavailable. Improved error dialog display for Markdown Preview failures.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Cut Data Warehouse Costs up to 54% with BigQuery Icon
    Cut Data Warehouse Costs up to 54% with BigQuery

    Migrate from Snowflake, Databricks, or Redshift with free migration tools. Exabyte scale without the Exabyte price.

    BigQuery delivers up to 54% lower TCO than cloud alternatives. Migrate from legacy or competing warehouses using free BigQuery Migration Service with automated SQL translation. Get serverless scale with no infrastructure to manage, compressed storage, and flexible pricing—pay per query or commit for deeper discounts. New customers get $300 in free credit.
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  • 5
    Pythopad

    Pythopad

    A free Python source code editor and Notepad replacement for Windows

    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Blocked is a source code editor that uses visual "blocks" to represent program structure
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7

    CodeLift

    Editor with extensive code help for the C++ language

    Currently in very early stages, but eventually plans to bring a code editor with extensive C++ auto completion and assistance.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    EnDecode is a tool to decode/decompress parts of a binary file like PDF. If using PDF then stream to endstream data can be decompressed. You select from start to end of the part you want to decode and it will decode the data.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Hydrogen

    Hydrogen

    Run code interactively, inspect data, and plot

    Hydrogen is an interactive coding environment that supports Python, R, JavaScript and other Jupyter kernels. Hydrogen was inspired by Bret Victor's ideas about the power of instantaneous feedback and the design of Light Table. Running code inline and in real-time is a more natural way to develop. By bringing the interactive style of Light Table to the rock-solid usability of Atom, Hydrogen makes it easy to write code the way you want to. You also may be interested in our latest project – interact – a desktop application that wraps up the best of the web-based Jupyter notebook. Watch expressions let you keep track of variables and re-run snippets after every change. Completions from the running kernel, just like autocomplete in the Chrome dev tools. Code can be inspected to show useful information provided by the running kernel. One kernel per language (so you can run snippets from several files, all in the same namespace).
    Downloads: 0 This Week
    Last Update:
    See Project
  • Deploy Apps in Seconds with Cloud Run Icon
    Deploy Apps in Seconds with Cloud Run

    Host and run your applications without the need to manage infrastructure. Scales up from and down to zero automatically.

    Cloud Run is the fastest way to deploy containerized apps. Push your code in Go, Python, Node.js, Java, or any language and Cloud Run builds and deploys it automatically. Get fast autoscaling, pay only when your code runs, and skip the infrastructure headaches. Two million requests free per month. And new customers get $300 in free credit.
    Try Cloud Run Free
  • 10
    Search files for a text string. Like grep but really dumbed down
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11

    TheSeeker

    .NET desktop app to find (and replace) text in folders and files.

    .NET desktop app to find (and replace) text in folders and files.
    Downloads: 0 This Week
    Last Update:
    See Project
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