Transcodr is a general-purpose media converter that runs ffmpeg in your browser via WebAssembly. Drop a file, pick an output, watch the same stderr you’d see at the command line — with your media never leaving the tab.
Video, audio, images, subtitles — anything ffmpeg can read. Drop them anywhere on the page or browse from disk.
Start encoding the moment you drop a file
| Time | From | To | Size | Δ | Duration | ||
|---|---|---|---|---|---|---|---|
| When you convert something, it’ll appear here. Clears on tab close — we don’t keep records. | |||||||
01 / Engine
Same library Netflix, YouTube, and basically every command-line video tool relies on, running in a Web Worker. Pipe a file in, run a command, pipe bytes back out.
02 / Privacy
No uploads, no accounts, no telemetry beyond an anonymous pageview. We couldn’t see your files if we wanted to — there’s no server in the loop.
03 / Limits
Files up to a few hundred megabytes convert comfortably. Beyond that, your browser starts asking pointed questions. Use the desktop ffmpeg for 4K masters.