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LocalMedia Tools

Audio Converter

Convert M4A, AAC, OGG, FLAC, and more into MP3 or WAV — all processed locally in your browser.

Runs in your browser — your files are not uploaded

100% local — your audio is never uploaded

Select an audio file

Drop your file here

Quick answer

What it does
Convert M4A, AAC, OGG, FLAC, and more into MP3 or WAV — all processed locally in your browser.
Your files
Never uploaded — processed on your device
Price
Free, no account
Formats
MP3, WAV, M4A, AAC, OGG, FLAC → MP3, WAV

Convert audio formats, privately

Got an M4A that won't play in your editor, a FLAC that's too big to share, or an OGG file an app refuses to open? This tool decodes your audio and re-encodes it to a universal MP3 or a lossless WAV. The whole process runs with the Web Audio API on your own device, so even large files never leave your browser. There's nothing to install and no account to create.

Why use this converter

How to convert an audio file

  1. Add your audio Drag and drop an audio file, or click to select one from your device.
  2. Choose output format Pick MP3 for small, universal files or WAV for a lossless result.
  3. Convert The tool decodes and re-encodes your audio locally in your browser.
  4. Download Save the converted audio straight to your device — no upload required.

Your audio stays private

Conversion happens directly in your browser using the Web Audio API. Your file is decoded and re-encoded on your own device and is never uploaded to any server. We collect only anonymous, aggregated usage statistics (such as how often a conversion starts or succeeds) to improve the tool — never your audio, filenames, or any personal data.

Verify it yourself: Open your browser DevTools → Network tab and run the tool: no request ever carries your file. Everything happens on your device.

FAQ

Is my audio uploaded to a server?
No. The entire conversion runs in your browser on your own device, so your audio is never uploaded.
Which formats can I convert from and to?
You can load MP3, WAV, M4A, AAC, OGG, and FLAC files. In this version the output is MP3 or WAV.
Why only MP3 and WAV output?
MP3 and WAV cover the most common needs — a small, universal file or a lossless one. More output formats may be added later.
Will converting reduce audio quality?
WAV output is lossless. MP3 output uses lossy compression, so you'll get typical MP3 quality at the chosen bitrate.
Is there a file-size limit?
There is no upload limit because nothing is uploaded. Very large files depend on your device's available memory.
Do I need to install anything or sign up?
No. It runs in any modern browser with no installation, no account, and no watermark.
Does it work on mobile?
Yes, it works in modern mobile browsers, though very large files process faster on a desktop.