A complete audio workbench, without the install
Desktop audio editors are powerful, but they take time to download, learn and update. Most quick jobs don't need a full studio: you just want the chorus as a ringtone, a lecture that plays a bit faster, or a karaoke version of a song. Full Audio Tools puts each of those jobs on its own focused page, with only the controls that task needs.
Everything happens locally. When you open a file, your browser decodes it into memory, the tool processes it with your computer's own processor or graphics card, and the result is handed straight back to you as a download. There's no upload bar, no queue, and no copy of your audio left behind on a server.
Who uses Full Audio Tools?
Singers & musicians
Pull vocals out with the AI Vocal Remover, isolate a bass line with the Stem Splitter, and move a song into your range with the Key Changer.
Podcasters & creators
Trim dead air, stitch segments together with the Joiner, and bring quiet guests up to level with the Volume Booster.
Students & teachers
Speed up recorded lectures, slow down language lessons, and compress long recordings so they fit into a learning platform.
Everyday users
Turn a voice memo into an MP3, cut a ringtone with the Audio Cutter, or rescue a video's soundtrack.
Built on modern, open technology
The separation tools run HTDemucs v4, a hybrid transformer network from Meta AI Research, directly in your browser through WebGPU. Pitch and tempo changes use the Signalsmith Stretch engine, and the editing tools work at the level of individual samples, with smooth crossfades so cuts never click. Results can be saved as MP3 (up to 320 kbps) or lossless WAV.
Questions people often ask
What does it cost to use Full Audio Tools?
Nothing. Every tool is free, with no trial period, sign-up or daily cap. The site is paid for by advertising.
Where do my files go when I open them?
Nowhere. They're read by your browser and processed on your own device. We never receive, see or store your audio.
Can I use it on my phone?
Yes. Every tool works in modern mobile browsers. The AI separation tools are much faster on a laptop or desktop with a graphics card.
What file types can I open?
Anything your browser can decode, typically MP3, WAV, M4A/AAC, FLAC, OGG, OPUS and WebM, plus the sound from MP4 and MOV videos.
Do the tools work offline?
Once a page and its components have loaded, the processing itself doesn't need the internet. The AI model is kept in your browser after its first download, so later separations can run even on a weak connection.