Is this audio converter free?

Yes. Convert audio for free with no account, watermark, or upload limit.

Are my files uploaded to a server?

No. FFmpeg runs in your browser via WebAssembly. Your audio never leaves your device.

Which formats are supported?

Upload MP3, WAV, OGG, FLAC, M4A, AAC, WebM, AIFF, and more. Export to MP3, WAV, OGG, FLAC, M4A, AAC, Opus, WebM, or AIFF.

When should I use MP3, WAV, or FLAC?

MP3 is best for small shareable files, WAV is useful for editing and compatibility, and FLAC keeps lossless quality while usually saving space compared with WAV.

Why can large files take a while?

The conversion runs in your browser, so speed depends on your device, browser, source file length, and selected output quality.

Free Audio Converter — Browser FFmpeg Online

Drop audio hereMP3, WAV, OGG, FLAC, M4A, AAC, WebM

File name

.mp3

Downloads as audio.mp3

Convert to

Quality

Drop an audio file to convert.

Notice: Your files are processed 100% locally in your browser and are not saved to any database. Please download your files once editing is complete to prevent losing your work.

Convert audio in your browser for podcasts, voice notes, music libraries, web uploads, ringtones, and editing apps. No signup, install, or watermark is required.

FFmpeg.wasm transcodes on your device and quality presets help balance file size against clarity. Use MP3 or AAC for sharing, WAV for editing, FLAC for archiving, and OGG or Opus for web and game projects.

Your file stays on your device during conversion. Keep the original until you have opened the download and confirmed the new format works in the app or site where you plan to use it.

Best for this page

Convert MP3, WAV, FLAC, and more in your browser — files never leave your device
Drop an audio file on the page or choose one from your device when you want a focused free audio converter workflow.
Try MP3 to WAV converter if your file type, format, or use case is slightly different.

How to use

Drop an audio file on the page or choose one from your device.
Pick the output format and quality preset for your player, editor, podcast app, or website.
Wait for FFmpeg to finish, then download and test the converted audio file.

Tips for better results

Pick the output format and quality preset for your player, editor, podcast app, or website before downloading so the result matches the place you plan to use it.
Keep the original file until you have opened and checked the downloaded result.
For large files, leave this browser tab open until the progress message says the work is complete.

Limits to know

Very large files can take longer because free audio converter work happens in your browser when possible.
Refreshing or closing the tab can clear unsaved work, so download the finished file before leaving.
Some older apps only accept common formats, so use a related converter page if the first export is not accepted.

FAQ

Is this audio converter free?: Yes. Convert audio for free with no account, watermark, or upload limit.
Are my files uploaded to a server?: No. FFmpeg runs in your browser via WebAssembly. Your audio never leaves your device.
Which formats are supported?: Upload MP3, WAV, OGG, FLAC, M4A, AAC, WebM, AIFF, and more. Export to MP3, WAV, OGG, FLAC, M4A, AAC, Opus, WebM, or AIFF.
When should I use MP3, WAV, or FLAC?: MP3 is best for small shareable files, WAV is useful for editing and compatibility, and FLAC keeps lossless quality while usually saving space compared with WAV.
Why can large files take a while?: The conversion runs in your browser, so speed depends on your device, browser, source file length, and selected output quality.