Free Online
Audio Tools
Convert, edit and optimize your audio directly in your browser. No uploads, no account, no complicated software.
Everything you need for everyday audio
Simple tools designed to work right in your browser.
MP3 Converter
Convert WAV, M4A, FLAC, OGG, OPUS and more to MP3.
Open tool →MP3 Cutter
Trim an audio file and keep only the section you need.
Coming nextMP3 Merger
Join multiple audio files into one clean track.
Coming nextMP3 Compressor
Reduce file size while keeping useful audio quality.
Coming nextMP3 Tag Editor
Edit title, artist, album, year, genre and cover art.
Coming nextVolume Booster
Adjust audio volume directly in your browser.
Coming nextYour files stay with you.
Our tools are designed around browser-side processing. Your audio can be processed locally instead of being uploaded to a remote conversion server.
Simple answers
Do I need to upload my audio?
No. The V1 converter processes the selected audio in your browser.
Is MP3Convert.app free?
Yes. The core tools are free to use.
Does it work on mobile?
Yes, on modern desktop and mobile browsers.