About Orpheus

What this is

Orpheus is a growing collection of everyday web utilities — calculators, file converters and document tools. They are free, they need no account, and they add no watermark. There is no upload queue because there is no upload.

How the tools actually work

Most online tools work by sending your file to a server, processing it there, and sending the result back. That means a copy of your document sits on someone else’s computer, however briefly, and you have to trust their retention policy.

Orpheus does the work in your browser instead. Calculations run in JavaScript; file conversion runs in WebAssembly, which executes compiled code at close to native speed on your own machine. The page loads, the code runs locally, and the result never leaves your device. You can verify this: open your browser’s network inspector, use any tool, and watch that nothing is sent.

Why it is built this way

Partly principle and partly economics. Processing on your device costs us nothing per use, which is why every tool can stay free without a queue or a file-size trap designed to sell you an upgrade. It also means we cannot leak, sell or lose your files, because we never receive them.

The trade-off is honest: very large files are limited by your own device’s memory rather than by our servers, and a handful of formats are not yet practical to handle in a browser. Where that is true, the tool says so rather than quietly uploading.

Who runs it

Orpheus is built and maintained by an independent developer, not a company with an advertising department. If a tool is wrong, slow, or missing, it is one person’s job to fix it — tell us and it gets fixed.