Web Storage

Storage for the web

IndexedDB

Working with IndexedDB | Web | Google Developers

jakearchibald/idb

jakearchibald/idb-keyval

dfahlander/Dexie.js

YDN-DB javascript library

JsStore - Think in SQL and do in JS

ujjwalguptaofficial/JsStore

klawson88/Baked-Goods

GitHub - only-cliches/Nano-SQL: Universal database layer for the client, server & mobile devices. It’s like Lego for databases.

GitHub - sql-js/sql.js: A javascript library to run SQLite on the web.

GitHub - jlongster/absurd-sql: sqlite3 in ur indexeddb (hopefully a better backend soon)

GitHub - phiresky/sql.js-httpvfs

GitHub - rhashimoto/wa-sqlite: WebAssembly SQLite with experimental support for browser storage extensions

GitHub - agershun/alasql: AlaSQL.js - JavaScript SQL database for browser and Node.js. Handles both traditional relational tables and nested JSON data (NoSQL). Export, store, and import data from localStorage, IndexedDB, or Excel.

Cache

The Cache API: A quick guide

File system

The Native File System API: Simplifying access to local files

File and Directory Entries API