Audio Converter
WAV, MP3, FLAC, AIFF, OGG, M4A — no upload, no account. Everything runs in your browser.
100% in your browser — no data is ever sent to a server.
How it works
- Drop your audio file. Any common audio file up to 500 MB — it's decoded locally, nothing is uploaded.
- Choose the output format. MP3, WAV, FLAC, AIFF, OGG or M4A — and pick the MP3 bitrate (128 to 320 kbps) when converting to MP3.
- Convert and download. Hit Convert, listen to the result in the built-in player, then download your converted file.
Features
- 100% in your browser, no upload. The conversion runs locally with ffmpeg.wasm — your file never leaves your computer.
- Six output formats. MP3, WAV (16-bit PCM), FLAC, AIFF, OGG Vorbis and M4A (AAC at 192 kbps).
- Adjustable MP3 bitrate. 128, 192, 256 or 320 kbps — the default is 320 kbps for maximum quality.
- Instant preview. Listen to the converted file right on the page before downloading it.
FAQ
Is this audio converter free?
Yes. Anonymous users get 5 free conversions per day across AudioKit's free tools — no account needed. If you need more, AudioKit Premium removes the daily limit. There's no watermark and no feature lock: the free conversion is the full conversion, including the 320 kbps MP3 setting.
Is my audio file uploaded to a server?
No. The conversion runs entirely in your browser using ffmpeg.wasm: your file is decoded and re-encoded on your own machine and never leaves it. The only network call is a tiny anonymous counter that tracks your daily free quota.
Which audio formats are supported?
You can convert to MP3 (128 to 320 kbps), WAV (16-bit PCM), FLAC, AIFF, OGG Vorbis and M4A (AAC at 192 kbps). On input, drop any common audio file — including those same six formats — up to 500 MB. If your audio is stuck inside a video, use our extract audio tool first.
Does converting improve audio quality?
No — conversion can preserve quality, never add it. Converting a lossy MP3 to WAV or FLAC gives you a much bigger file with exactly the same sound: the detail discarded by the original MP3 encoder is gone for good. Lossless to lossless (WAV, FLAC, AIFF) is fully transparent, while every re-encode to a lossy format (MP3, OGG, M4A) loses a little more detail.
What bitrate should I choose for MP3?
If file size isn't a concern, keep the default 320 kbps: it's the highest quality the MP3 format allows and is virtually indistinguishable from the source for most listeners. 256 kbps still sounds excellent at a smaller size, 192 kbps is fine for casual listening, and 128 kbps is best reserved for voice recordings or when space is really tight.