Full Audio Tools

About Full Audio Tools

Full Audio Tools brings 12 everyday audio utilities together in one place, from AI-powered stem separation to simple format conversion. Each tool has one job, does it well, and runs entirely inside your web browser.

Our approach

Online audio services usually ask you to upload a file, wait, and trust that it will be deleted afterwards. We think that's the wrong trade-off for personal recordings, unreleased songs and client work. Browsers have become powerful enough to decode, analyse and encode audio, and even to run neural networks, on the device you're already using. So that's where Full Audio Tools does its work.

What's inside

Separate

Vocal Remover and Stem Splitter, powered by the HTDemucs v4 neural network running on your GPU through WebGPU.

Edit

Cutter, Trimmer and Joiner, with sample-accurate edits and smooth crossfades.

Convert

MP3 Converter, MP3 to WAV, WAV to MP3 and Compressor, with batch processing and ZIP downloads.

Adjust

Speed Changer, Key Changer and Volume Booster, using the Signalsmith Stretch engine, key detection and a look-ahead limiter.

Open-source foundations

We build on excellent open-source work, including the Web Audio API, ONNX Runtime Web, Meta's HTDemucs model, the Signalsmith Stretch library, the LAME MP3 encoder (via lamejs) and JSZip. We're grateful to their authors.

Editorial standards

Our tutorials and glossary exist to help you get better results, whether that's singing a song in the right key or rescuing a quiet interview. They're produced by the Full Audio Tools editorial team under these principles:

  • Written for real tasks. Each tutorial starts from a problem people actually have and ends with a result they can achieve.
  • Checked against sources. Technical details come from published standards, platform documentation, research papers and the documentation of the open-source software we build on.
  • Tried before publishing. Steps and settings are worked through with our own tools first.
  • Clear about trade-offs. We explain what a technique can't do as well as what it can, such as the limits of AI separation or of boosting a noisy recording.
  • Dated and maintained. Every tutorial shows its publication or update date, and we revise content when tools or platforms change.
  • Independent. Advertisers have no influence over our content or recommendations.

If you notice an error, please let us know and we'll correct it.

How the site is funded

Full Audio Tools is free and has no paid tier. Running costs are covered by advertising, which is clearly labelled and kept apart from the tool controls. Details about advertising and cookies are in our Privacy Policy.

Say hello

Suggestions, bug reports and kind words are all welcome. Reach us through the contact page.