Matt Kruse's JavaScript Toolbox is intended to be a repository of code and reusable libraries which address common needs that many web developers encounter. The code found here is based on standards but also tries to be backwards-compatible for browsers which don't support the standards.

The information on the site emphasizes standards-compliance for best results, and best practices which should be followed. This is not a site containing snippets of code submitted by anonymous, unreliable coders.

All code on the site is written by Matt Kruse, in a consistent fashion, tested thoroughly, and used in practice by thousands of web sites around the world.