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Audio converter
Drop a recording and it is identified by its contents, then converted on your own machine. Nothing is uploaded, nothing is watermarked, and where a conversion can be done without touching the audio at all, that is what happens.
Up to 100 files at once. Mixed formats are fine.
They convert one after another and download together as a ZIP.
Most used audio conversions
Every audio format we handle
11 formats in this category, 84 working conversions — 84 of them without your file leaving the device.
- MP3MP3
The audio format everything plays. Lossy, small, thirty years old and still unbeaten on compatibility.
- WAVWAV
Uncompressed audio. Perfect quality, enormous files — the working format in every studio.
- FLACFLAC
Lossless compression at about half the size of WAV. The archival choice for music.
- AACAAC
The MP3 successor. Better quality per megabyte, standard on Apple devices and in streaming.
- M4AM4A
AAC audio in an MP4 container. What iTunes and voice memos produce.
- OGGOGG
The royalty-free audio format. Common in games and on Linux, rare on phones.
- OPUSOPUS
The best-sounding format at low bitrates. What voice messages and calls use.
- AIFFAIFF
Apple's uncompressed audio format. The WAV equivalent on the Mac side.
Read only — we can open this format but not write it.
Lossless, lossy, and the difference that matters
WAV and FLAC are both lossless: FLAC is simply WAV packed better, typically to around half the size, with every sample recoverable exactly. Converting between them changes nothing you could ever measure, and is the right move for archiving or for handing audio to someone who will edit it.
MP3, AAC and Opus are lossy — they discard detail deliberately to be small, and that detail does not come back. Converting an MP3 to FLAC produces a large file containing exactly the same audio the MP3 had, losses included; it does not restore anything. If quality matters, convert from the original rather than from a copy that has already been through a lossy pass.
What the tags do
Audio files carry metadata — title, artist, album art, and often the software that wrote them or an identifier from where they were bought. Conversions here carry across what makes sense and drop what does not apply to the target format.
If removing that information is the actual goal rather than a side effect, the metadata remover is the tool for it: it shows you what a file is carrying before it takes anything out, and it rewrites the tags without re-encoding the audio, so the recording itself is bit-for-bit unchanged.
Audio converter: common questions
Does converting to FLAC improve an MP3?
No, and this is the most common misunderstanding in this category. FLAC preserves perfectly whatever it is given, so converting an MP3 to FLAC preserves the MP3 — losses and all — in a much larger file. Nothing is recovered.
Are my files uploaded?
No. Audio conversion runs entirely in your browser and the file stays on your device.
Will the track name and artist survive?
Where the target format has somewhere to put them, yes. Formats differ in what tags they support, so some fields have no equivalent and are dropped rather than mangled.
Can I convert a whole album at once?
Yes. Drop as many files as you like, choose one target format and use Convert all — the results come back together as a single ZIP rather than as thirty separate downloads.