Your Audio Format Converter
Free online audio format converter. Load an MP3, WAV, M4A, OGG or FLAC file and export it as WAV or MP3.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
A 40MB WAV voice memo → MP3 at 128 kbps → about 4MB, ready to email or message.Open the Audio Format Converter
Illustration. Open the tool for the real thing.
What is the Audio Format Converter?
Load an audio file in whatever format your browser can decode — MP3, WAV, M4A/AAC, OGG or FLAC — and convert it into the format you actually need. Export as lossless 16-bit WAV for editing, or compact MP3 for sharing and messaging apps, with a simple bitrate setting for the compressed export.
The whole conversion happens locally: the audio is decoded by the browser's Web Audio engine and re-encoded on your device, so long recordings, private voice memos and podcast masters never leave your computer, and there is no file-size wait for an upload.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
MP3, WAV, M4A, AAC, OGG and FLAC.
WAV (lossless) and MP3 (compressed).
Choose the MP3 bitrate for size vs quality.
Decoded and encoded in your browser, nothing uploaded.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
Podcasters and voice-memo users
Convert recordings into a smaller, shareable format.
Try it freeAnyone with an old audio file
Convert an unusual format into one that plays everywhere.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This utility | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
Is my audio uploaded?
No. It is decoded and re-encoded entirely in your browser.
What is the best format for sharing?
MP3 at 128–192 kbps balances small size with good quality for most speech and music.
Can I convert to FLAC or OGG?
Not currently — export formats are WAV and MP3, the two most widely compatible choices.
Why did my file fail to load?
Your browser could not decode that specific format or codec; try converting it with another tool first or check the file is not corrupted.
Does converting to MP3 reduce quality?
Yes, MP3 is lossy — export from a lossless source (WAV/FLAC) for the best possible result.
More free tools
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Try the Audio Format Converter now
Convert audio between WAV and MP3 in your browser. Free to use.
Try it free