PouchDB

Use Core Data to save your application’s permanent data for offline use, to cache temporary data, and to add undo functionality to your app on a single device. To sync data across multiple devices in a single iCloud account, Core Data automatically mirrors your schema to a CloudKit container. Through Core Data’s Data model editor, you define your data’s types and relationships, and generate respective class definitions. Core Data can then manage object instances at runtime to provide several features. Core Data abstracts the details of mapping your objects to a store, making it easy to save data from Swift and Objective-C without administering a database directly. Core Data’s undo manager tracks changes and can roll them back individually, in groups, or all at once, making it easy to add undo and redo support to your app. Perform potentially UI-blocking data tasks, like parsing JSON into objects, in the background.

Dexie.js is a minimalistic and bulletproof IndexedDB wrapper library designed to simplify client-side storage. At only ~29k minified and gzipped, it offers a concise API that addresses the complexities of native IndexedDB, such as ambivalent error handling, poor queries, lack of reactivity, and code complexity. Dexie.js provides a well-thought-through API design, robust error handling, extendability, change tracking awareness, and extended KeyRange support, including case-insensitive search, set matches, and OR operations. It embraces the IndexedDB specification and all its features, allowing developers to use existing IndexedDB data without the need for data migration. Dexie.js supports composable real-time queries, enabling components to mirror the database in real-time across various front-end frameworks like React, Svelte, Vue, and Angular. With Dexie Cloud, developers can build consistent, authenticated, and access-controlled local-first apps with just a few lines of extra code.