One tool, four formats, no guesswork
Most audio converters bury you in codecs, sample rates, and bitrate sliders you do not need. This one keeps it to the four formats people actually ask for. Drop in any common audio file — MP3, WAV, M4A, AAC, OGG, Opus, FLAC, or WMA — pick a target, and the conversion runs right on your machine with FFmpeg compiled to WebAssembly. Nothing uploads, so even a 400 MB lecture recording stays private.
Which format should you pick?
MP3 is the safe default — every device, every app, every podcast host reads it, and our ~190 kbps VBR export is indistinguishable from the source for speech. Reach for M4A (AAC) when you live in the Apple ecosystem; at the same file size it sounds a touch cleaner than MP3. Choose WAV only when you need uncompressed PCM for editing, mastering, or feeding a finicky tool that rejects compressed input — expect files roughly ten times larger. Pick OGG (Vorbis) for the open-source web and game-engine workflows where licensing-free audio matters. If you only ever want MP3 out, our MP3 converter is the same engine with the format locked.
Converting a recording, not a file?
A lot of audio that lands here started as a screen recording someone wanted to strip down to sound. If that is you, skip the round trip: Clipy records your screen and mic for free with no watermark, gives you a hosted link, and auto-transcribes the audio — so you may not need a converted file at all. When you do, capture the clip, then export it here. To go straight from an Apple voice memo to a shareable file, the M4A to MP3 converter is the one-tap path.
What about quality loss?
Converting between two lossy formats (say MP3 to OGG) is transcoding — it decodes to raw audio and re-encodes, so each hop sheds a little detail. For one conversion at our default bitrates you will not hear it, but do not bounce a file through five formats in a row. Going from a lossless source (WAV or FLAC) into MP3, M4A, or OGG is a single clean encode and the best-quality path. Going up to WAV never adds quality back — it just stops further loss for editing.