MP3 to FLAC
Converter
Convert MP3 to FLAC free in your browser. Save 16-bit audio with FLAC compression. Keep mono or stereo sound and download without uploading your recording.
Choose MP3
Drop one file here, or choose it from your device.
One audio file · 50 MB · mono or stereo · no fixed duration cap. Output is 44.1 kHz.
MP3 and AAC/M4A use your selected bitrate. OGG uses Vorbis quality 4. WAV and FLAC store 16-bit PCM audio. Cover art and source tags are removed. Video, extra audio tracks, and surround sound are rejected.
The converter downloads about 32 MB on first use. Processing speed depends on the recording and your device. Keep this tab open.
How it works
- Choose a MP3 file within the limits above.
- Convert to FLAC. Cancel at any time; your original stays unchanged.
- Download the verified result before leaving or reloading this page.
Audio is re-encoded at 44.1 kHz, preserving mono or stereo channels. Lossy formats can change quality. WAV and FLAC outputs do not restore information already lost in a source recording. The complete result is decoded and checked before download.
Audio converters
Your privacy
Your file is processed on this device, usually in a separate worker. We do not upload it. Cancel stops processing or discards its result; clearing or leaving this page releases the selection and results. Saved downloads remain on your device. With your permission, Google Analytics measures visits, conversion outcomes, download clicks, and errors and may use cookies; our events do not include file contents or filenames.