Convert Audio Formats
MP3/WAV/etc.
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Audio formats and what they cost you
Audio formats split into lossy and lossless. MP3, AAC, and Ogg Vorbis are lossy: they discard sound the ear is least likely to notice, achieving roughly a tenth of the original size. WAV and FLAC are lossless — WAV stores raw samples, FLAC compresses them to about half without discarding anything, so decoding returns the exact original waveform.
The rule that matters is this: converting between lossy formats compounds the loss. An MP3 turned into an AAC has been through two rounds of discarding, and the damage is permanent. Always convert from the highest-quality source you have. Converting lossless to lossy is a one-way trip too, so keep your WAV or FLAC master. And bitrate is the other dial — 128 kbps is acceptable for speech, 192 to 320 kbps is where music should sit.
Why we built this tool
Conversion is forced by compatibility: a device that will not play FLAC, a platform that only accepts MP3, a video editor that wants WAV, or a voice memo in a format nothing on your desktop recognises.
The files are personal recordings, purchased music, or unreleased work. Uploading them to a converter is both a privacy question and, for large lossless files, a slow one. Ours decodes and re-encodes in your browser using WebAssembly builds of standard audio codecs, so the file never leaves the device, there is no size or duration limit, and conversion speed depends on your own processor rather than someone else's queue.
Tips and common mistakes
- Never convert between two lossy formats if you still have the original — the losses compound.
- Use 192 kbps or higher for music; 128 is acceptable for speech only.
- Keep a lossless master in WAV or FLAC and generate lossy copies from it as needed.
- Check that metadata such as track titles survived the conversion.
Quick start: using Convert Audio Formats
- Load the audio file you want to convert.
- Choose the target format for your destination.
- Set the bitrate if converting to a lossy format — 192 kbps or higher for music.
- Start the conversion and wait while the file is processed locally.
- Listen to the result before deleting the original.
To pull audio out of a video first, use Extract Audio from Video; to shorten the result, Cut Audio.