Audio converter for MP3, WAV, and OGG via the same LGPL ffmpeg.wasm core as Video to GIF. Convert voice notes and podcasts privately without a media API.
Private by design. Heavy tools (OCR) may take a minute on large files.
How it works
Audio never uploads to SortMyFile.
1
Pick format
Choose MP3, WAV, or OGG output.
2
Convert
ffmpeg.wasm remuxes/encodes in your browser.
When you’d use this
Convert audio formats in-browser with ffmpeg.wasm (LGPL core) — GPS or camera EXIF should not ride along with a public upload. A phone photo is the wrong size, format, or weight for a form field or chat app.
FAQ
About audio converter online free
DRM / Spotify?
Only files you already own as downloads — we do not rip protected streams.
What is Audio Converter for?
Convert audio formats in-browser with ffmpeg.wasm (LGPL core). It runs in your browser on SortMyFile so you can finish the job without an upload converter.
Does Audio Converter upload files to SortMyFile?
No. Audio Converter processes locally in the tab. We do not operate an upload API for this tool.
Related tools
More private utilities that pair well with this page.