Audio processing, in your browser
Convert, compress and rename audio files in batch — MP3, WAV, OGG, FLAC. Nothing leaves your device.
Drop audio files here
or click to browse — MP3, WAV, OGG, FLAC, AAC, M4A
128 kbps
Metadata
→ name.mp3
Frequently asked questions
Is my audio uploaded to any server?
No. Everything runs entirely in your browser using the Web Audio API. Your files
never leave your device.
What is audio bitrate?
Bitrate controls how much data is used per second of audio. Higher bitrate = better
quality, larger file. 128 kbps is standard; 320 kbps is near-lossless for MP3.
What formats are supported?
You can load MP3, WAV, OGG, FLAC, AAC and M4A. Output supports MP3 (custom bitrate),
WAV and OGG.
What does Mono vs Stereo do?
Mono merges both channels into one, roughly halving the file size. Stereo preserves
left and right channels.
How does batch renaming work?
Set a prefix, suffix, and optional auto-numbering. The output name is assembled as:
[number_]prefix + original + suffix[_number] + .ext.