Audio Converter
Convert audio files between MP3, WAV, OGG, AAC, FLAC, and M4A. No upload needed.
Drop an audio file here or click to browse
Supports MP3, WAV, OGG, AAC, FLAC, M4A
Convert audio between six common formats
The Audio Converter changes an audio file from one format to another, supporting MP3, WAV, OGG, AAC, FLAC, and M4A in both directions. Each format suits a different need: MP3 and AAC are small and play almost everywhere, WAV and FLAC preserve full quality for editing and archiving, OGG is a free open format, and M4A is common on Apple devices.
People reach for a converter for all sorts of reasons: a podcast host that only accepts MP3, a video editor that prefers WAV, a phone ringtone that needs M4A, or an archive you want to keep lossless in FLAC. Instead of installing desktop software, you can do the conversion right here in a web page.
The conversion is powered by FFmpeg running as WebAssembly inside your browser. The file you choose is decoded and re-encoded on your own computer and is never sent to any server, so even sensitive recordings stay private.
How to convert an audio file
Drag your audio file onto the drop zone or click to browse for it. The tool reads the file locally and displays its name and size once loaded.
Pick the output format you want from the row of buttons: MP3, WAV, OGG, AAC, FLAC, or M4A. Click the Convert button, which is labelled with your chosen format. The first conversion downloads the FFmpeg engine, so allow a few seconds; subsequent conversions start more quickly.
When the bar reaches 100 percent you can play the converted audio in the built-in preview player and then click the download button to save the new file to your device.
Choosing the right format
If you need the smallest file that plays everywhere, choose MP3 or AAC, which are lossy formats that discard inaudible detail to save space. If you are editing audio or want a perfect copy, choose WAV (uncompressed) or FLAC (compressed but lossless), which keep every bit of the original.
Keep in mind that converting from a lossy format such as MP3 into a lossless one such as WAV or FLAC will not restore quality that was already lost, it simply stores the existing audio in a larger file. For the best results, convert from the highest-quality source you have available.