Convert MP3 to FLAC
Runs locally in your browser via a WebAssembly build of ffmpeg. Your file is never sent to a server.
- Choose a .mp3 file from your device.
- Click convert to FLAC.
- Download the result.
Maximum file size: 100 MB. The first conversion loads a ~30 MB converter engine, once per visit. Nothing is uploaded - conversion runs on your device.
MP3 vs FLAC
MP3 is the universal compressed audio format, supported by essentially every device and app. FLAC is a lossless compressed format that keeps full studio quality at roughly half the size of WAV.
Frequently asked
Why convert MP3 to FLAC?
MP3 is the universal compressed audio format, supported by essentially every device and app. FLAC is a lossless compressed format that keeps full studio quality at roughly half the size of WAV. Converting between them is common when a file made for one use needs to work for the other.
Does this upload my file anywhere?
No. Conversion runs entirely on your device using a WebAssembly build of ffmpeg - the file never reaches a server.
Is there a file size limit?
Yes, 100 MB per file, to keep conversion reliable inside the browser.
Koldflux exports every clip in the right format automatically - no manual conversion step.
Automate this in Koldflux