withuse

Build useful things, together.

Useful things, added up, make the world a little better — not through grand revolutions, but through one genuinely helpful tool at a time.

What we make

Tools that stay on your machine
Free developer utilities that run entirely in the browser. Nothing you paste is uploaded, so a real production value is as safe to use as a fake one.
Guides that were actually run
Every reference guide executes its own code before publishing and quotes the real output, citing the RFC or the language reference rather than other blog posts.
Small things, kept up
Better a useful few than one perfect thing. We start small, publish the process where we can, and keep what we ship maintained.

Tools

5 tools are live, with more in progress. They are free, need no account, and work offline once loaded.

Browse all tools →