Convert audio files
MP3 for compatibility, WAV for editing, FLAC for archiving, OGG and M4A in between — converted by a real FFmpeg build running in your browser, so your recordings never leave your device.
How it works
- Drop an audio file. MP3, WAV, OGG, M4A, AAC, FLAC, Opus, WMA — most things in.
- Choose the target format. Sensible quality defaults are baked in (V2 VBR for MP3, 192k for M4A, lossless for FLAC/WAV).
- Convert. First run loads the engine (~31 MB, then cached); the converted file downloads automatically.
Frequently asked questions
Which format should I pick?
MP3 plays absolutely everywhere. WAV is uncompressed — big, but ideal for editing. FLAC is lossless at half the size of WAV. M4A (AAC) sounds better than MP3 at the same bitrate. OGG is the open-source equivalent of M4A.
Will converting MP3 → FLAC improve quality?
No — lossy damage is permanent. FLAC from an MP3 just wraps the same audio in a bigger file. Convert lossless sources (WAV/FLAC) to lossy, not the other way, when quality matters.
Is anything uploaded?
No. The conversion runs entirely in your browser — voice memos, demos and interviews stay yours.
Are there file size or length limits?
Only your device's memory. Albums-worth of audio is fine; multi-hour recordings work but take proportionally longer.