Free · private · no sign-up

cowbloke tools

Handy little tools that run entirely in your browser through WebAssembly. Your files are processed on your own device and are never uploaded.

Nothing is uploaded

Your files are opened by the page and stay in your browser's memory. There is no server doing the work.

WebAssembly inside

Each tool ships its engine as WebAssembly, so it runs at near-native speed on your own CPU or GPU.

Locked to this site

The pages' security policy only allows connections back to cowbloke.com, and only to fetch the tool itself.

Built on open source

Every tool credits the open-source project that powers it. Thanks to the people who build them.