Audio tools
Convert, cut and tag audio files without uploading them. Decoding and encoding happen in your browser with the Web Audio API, so voice memos, recordings and music stay on your device.
All audio tools
Which tool do I need?
- A video editor, sampler or DAW wants WAV MP3 to WAV →
- You want a lossless file for archiving or a hi-fi player MP3 to FLAC →
- Cutting a clip or ringtone, or making it louder or quieter Audio Trimmer & MP3 Cutter →
- Fixing song titles, artist names or cover art in your music app MP3 Tag Editor →
What converting can and can't do
Converting an MP3 to WAV or FLAC doesn't bring back detail the MP3 encoder already threw away. What it does is stop any further loss and give you a format other software accepts. WAV and FLAC hold the same audio; FLAC is simply compressed losslessly, about half the size. At CD quality (44.1 kHz, 16-bit stereo), a WAV takes roughly 10 MB per minute. See WAV or FLAC: which to pick.
Why the trimmer exports WAV or FLAC
Browsers can decode MP3, but they don't include an MP3 encoder. Rather than re-encode your clip to MP3 a second time (and lose more quality), the trimmer exports lossless WAV or FLAC. The tag editor is different: it rewrites only the ID3 tags, so the audio itself is copied untouched.
Related guides
Frequently asked questions
Does converting MP3 to WAV or FLAC improve the quality?
No. It preserves the MP3's current quality exactly, but can't restore what MP3 compression removed. Convert when software needs WAV or FLAC, or to avoid further loss when editing.
Are my audio files uploaded?
No. Files are decoded and processed with the Web Audio API in your browser and never leave your device.
Why can't I export the trimmed clip as MP3?
Browsers include MP3 decoders but no MP3 encoder. Exporting to lossless WAV or FLAC avoids a second round of lossy compression.
Does editing tags change the sound?
No. The MP3 Tag Editor rewrites only the ID3 tag block; the audio frames are copied byte for byte.