Audio Format Converter
Convert audio between WAV and MP3 in your browser · free, no signup
See Audio Format Converter in action
Free 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.
Key features
Multiple input formats
MP3, WAV, M4A, AAC, OGG and FLAC.
Two export formats
WAV (lossless) and MP3 (compressed).
Adjustable bitrate
Choose the MP3 bitrate for size vs quality.
Fully local
Decoded and encoded in your browser, nothing uploaded.
How to use it
- Drop in your audio file.
- Choose the output format (WAV or MP3).
- Set the bitrate for an MP3 export.
- Convert and download the result.
Worked example
Example
A 40MB WAV voice memo → MP3 at 128 kbps → about 4MB, ready to email or message.
Who uses this tool
Podcasters and voice-memo users
Convert recordings into a smaller, shareable format.
Musicians
Move between lossless WAV for editing and MP3 for distribution.
Anyone with an old audio file
Convert an unusual format into one that plays everywhere.
Tips for the best results
- Use WAV when you plan to edit further, since it has no compression loss.
- 128–192 kbps MP3 is a good balance of quality and size for speech and music sharing.
- Very long files take longer to encode; keep the tab open until it finishes.
- Check your browser can play the source format first — if it plays in the tab, it can convert.
Common mistakes to avoid
- Converting an already-compressed MP3 to another lossy format repeatedly, which loses more quality each time.
- Expecting the tool to fix distorted or clipped original recordings — conversion changes format, not quality.
- Closing the tab mid-conversion on a very large file.
Why use AZRS QuickFix?
It is 100% free, needs no signup and has no watermark or usage limits. The tool runs in your browser, so what you type stays on your device, and it works on phones, tablets and desktops. New tools are added every week — bookmark this page or browse the full QuickFix toolbox.
Frequently asked questions
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.
Is there a file size limit?
It depends on your device's memory; typical songs and voice recordings convert without issue.