A collection of free tools that run entirely in your web browser. No downloads, no servers, no subscriptions. Built with open source technology - simple, fast, and your data stays on your device.
I wanted a UI for some open source libraries I find genuinely useful, and figured it'd be a fun excuse to experiment with newer browser features (custom elements, WASM support, WebRTC, and more) while I was at it.
Plus, I got tired of running into paywalls or daily limits while trying to use simple, quick tools online, or needing to download full-blown clunky apps for only a small subset of features. Most of these utilities are just wrappers around free libraries anyway, so why not make them actually free?
Everything runs in your browser using HTML, JavaScript, CSS, WebAssembly, and standard Web APIs. No frameworks. No telemetry, no servers*. Since everything runs in the browser, everything stays simple, fast, and cheap. As a nice side effect, your data stays with you and you don't have to trust random servers with your files.
Each tool shows what libraries or technologies are powering it underneath, so you can check out the actual libraries if you're curious. Nothing fancy, just mildly interesting, mildly helpful tools.
*OK fine, there's technically one tiny server for Browser Bridge's "Simple Codes" mode that temporarily stores encrypted connection strings using 6-digit passcodes. The server never decrypts anything - it just makes it easier for browsers to exchange encrypted data instead of scanning QR codes. Also, Cloudflare is hosting this whole site on servers somewhere (and probably has some built-in analytics), but that doesn't count because those are someone else's computers and code and therefore not my problem.
It's the sound you make when you stumble across a mildly interesting tool that actually does what you need it to do. Total coincidence that it's also a pun on the creator's last name (O'Toole). Now it's the sound you make when you discover both a useful tool AND questionable humor.