Audio Converter — Free Online Tool
Convert MP3, WAV, M4A, AAC, OGG and FLAC to MP3 or WAV — privately in your browser.
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Click to select an audio file
MP3, WAV, M4A, AAC, OGG, FLAC
About Audio Converter
The Audio Converter changes audio files between formats right inside your browser. Load an MP3, WAV, M4A, AAC, OGG or FLAC file and export it as a clean MP3 or a lossless WAV — perfect for preparing audio for editing, sharing, ringtones, or compatibility with apps that only accept certain formats.
Because everything is processed locally with the Web Audio API, your files are never uploaded to a server. It is a fast, private, install-free way to handle common conversions like MP3 to WAV and WAV to MP3.
How to Use Audio Converter
- Click the upload area and choose an audio file (MP3, WAV, M4A, AAC, OGG or FLAC).
- Pick your output format — MP3 or WAV.
- Click Convert and wait a moment while the audio is decoded and re-encoded.
- Click Download to save the converted file.
Key Features
Convert MP3 to WAV, WAV to MP3, and M4A/AAC/OGG/FLAC to MP3 or WAV
Lossless WAV (16-bit PCM) and 128 kbps MP3 output
Built-in audio preview before and after conversion
100% client-side processing - files never leave your device
No watermarks, signup, or upload limits
Works on desktop and mobile browsers
Frequently Asked Questions
Which audio formats can I convert?
You can load any format your browser can decode — including MP3, WAV, M4A/AAC, OGG and (in most modern browsers) FLAC — and convert it to MP3 or WAV. So MP3 to WAV, WAV to MP3, M4A to MP3 and similar conversions all work.
Are my audio files uploaded to a server?
No. The conversion happens entirely in your browser using the Web Audio API. Your files never leave your device, which keeps them completely private.
Why are the output formats only MP3 and WAV?
Browsers can decode many formats but can only reliably re-encode to WAV (lossless PCM) and MP3 in JavaScript. These two cover the vast majority of needs — WAV for editing quality and MP3 for small, shareable files.
Is there a file size limit?
There is no fixed limit, but very large files use more memory because the whole file is decoded in the browser. Most songs and clips convert in a few seconds on a typical device.
What MP3 quality is used?
MP3 output is encoded at 128 kbps, a good balance of quality and file size. WAV output is 16-bit PCM at the source sample rate.