Loading…
About Convert Audio Format
Convert Audio Format — free, private, browser-based audio tool
Convert audio files to MP3 or WAV. Choose the MP3 bitrate and download.
Why use Convert Audio Format
- ·Files stay on your device — nothing is uploaded
- ·No signup needed
- ·Works in any modern browser, on any OS
- ·Free daily use; Pro removes limits and watermarks
How to use it
- 1Drop an audio file on the page, or click to choose one.
- 2Pick the options you want.
- 3Download the WAV, MP3 file.
MP3 or WAV
MP3 is small and plays everywhere; choose 96 to 320 kbps (192 kbps is the default and sounds transparent for most listening). WAV is uncompressed — larger, but best for editing. Free use encodes up to 192 kbps; Pro allows 320 kbps.
How it works
Web Audio API + AudioWorklet for low-latency DSP, ffmpeg.wasm for codec encoding, and a custom WASM SIMD path for time-stretching and pitch-shifting. The processing code runs inside the page, so your file is not uploaded to a server — you can confirm this in your browser's DevTools → Network tab.
Frequently asked questions
Which inputs are supported?+
Common audio files your browser can decode, such as WAV, MP3, M4A, AAC, OGG and FLAC.
Does converting MP3 to WAV improve quality?+
No. It gives an uncompressed file for editing, but cannot restore what MP3 compression removed.
Is my audio uploaded?+
No. Conversion runs in your browser.
Is Convert Audio Format free?+
Yes, with a daily free allowance and no signup. Xonvert Pro ($4.99/month) removes the daily limits and the watermark on exported files.
Do I need to install anything?+
No. It works in any modern browser on Windows, macOS, Linux, ChromeOS, Android and iPad.
Related audio tools
Trim Audio
Cut the start and end of an audio file with precise time controls.
Merge Audio
Join multiple audio files back-to-back into one track.
Adjust Volume
Make audio louder or quieter — by dB or by percent.
Fade In
Smoothly ramp the start of your audio from silent to full volume.
Fade Out
Smoothly ramp the end of your audio down to silence.
Normalize Audio
Bring quiet tracks up to a consistent loudness — no clipping.