sql.js

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On the record

BigInt limit

BigInt support is partial: retrieving BigInt values is supported, but binding BigInt values is not.github.com · read 7 Oct 2026

Custom functions

Applications can register JavaScript functions and custom aggregate functions for use in SQL.github.com · read 7 Oct 2026

Distribution

The project is hosted on npm and publishes release artifacts, including WebAssembly loader and binary files.github.com · read 7 Oct 2026

Documentation

The project provides API documentation for its module, database, statement, and statement iterator.sql.js.org · read 7 Oct 2026

Download

Release artifacts include WebAssembly, asm.js, debug, and Web Worker builds.github.com · read 7 Oct 2026

Extensions

The library includes contributed math and string extension functions.github.com · read 7 Oct 2026

Implementation

It compiles SQLite to WebAssembly and also includes an asm.js build for compatibility with older browsers.github.com · read 7 Oct 2026

Import and export

It can import existing SQLite files and export a database as a JavaScript typed array.github.com · read 7 Oct 2026

In-memory database

The database uses a virtual file stored in memory, so changes do not persist automatically.github.com · read 7 Oct 2026

In-memory storage

The database is held in memory, so changes are not persisted automatically.github.com · read 7 Oct 2026

Integrations

The README shows use with Node.js, npm, webpack, React, and CDNs.github.com · read 7 Oct 2026

License

The project states that sql.js is MIT licensed.github.com · read 7 Oct 2026

Performance limit

The README says a native SQLite binding can work directly with database files and avoid loading the entire database into memory, while sql.js may encounter out-of-memory errors.github.com · read 7 Oct 2026

Purpose

sql.js is a JavaScript library for creating and querying SQLite databases in a browser.github.com · read 7 Oct 2026

SQL API

The API supports running SQL, preparing statements, binding parameters, and reading query results.github.com · read 7 Oct 2026

SQL features

The API supports prepared statements and custom JavaScript functions and aggregate functions in SQL.github.com · read 7 Oct 2026

Technology

It compiles SQLite to WebAssembly and includes an asm.js build for compatibility with older browsers.github.com · read 7 Oct 2026

Web workers

A Web Worker build can run CPU-intensive SQL queries off the main application thread, with a more limited API.github.com · read 7 Oct 2026

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