How to use
- Drop or select an audio file (MP3, WAV, OGG, M4A, FLAC and other common formats are accepted).
- Choose the target format: MP3, WAV, OGG, M4A or FLAC.
- Click Convert and wait for the in-browser engine to process your file.
- Download the converted audio file to your device.
Frequently asked questions
Which audio formats can I convert to?
You can convert to MP3, WAV, OGG, M4A or FLAC. Most common audio inputs are accepted as the source, including MP3, WAV, OGG, M4A, FLAC and more.
Are my files uploaded to a server?
No. The converter runs 100% in your browser with ffmpeg.wasm, so your audio is processed locally and never leaves your device. Nothing is uploaded.
Why is the first conversion slow?
On the first run the tool downloads the ~30 MB conversion engine. It is then cached in your browser, so later conversions start faster and even work offline.
Is there a file-size limit?
There is no fixed limit set by the tool. Because everything runs in your browser, very large files use more memory and may take longer, so the practical limit depends on your device and browser.
Can I convert several files at once?
This tool converts one audio file at a time. To convert multiple tracks, simply repeat the process for each file.
Will converting to MP3 or OGG reduce quality?
MP3, OGG and M4A are lossy formats, so converting to them re-compresses the audio. WAV and FLAC are lossless, so choose those if you want to preserve maximum quality.
About this tool
Free online audio converter to change files between MP3, WAV, OGG, M4A and FLAC. Runs 100% in your browser with ffmpeg.wasm, so nothing is ever uploaded.