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Video and audio

AudioMass

by pkalogiros

AudioMass is a web-based audio and waveform editor that runs in the browser. It lets you edit, record and mix sound, including multitrack projects, without installing a desktop editing program.

Worth a lookEstablished, with a few things to check (listed below).

View on GitHub

Stars
3k
Licence
MIT
Runs on
A browser
Setup
Easy
Language
JavaScript
Age
3020 days

What you can do with it

  • Edit and clean up audio files, such as trimming, applying effects and adjusting levels
  • Layer several tracks, crossfade overlaps and bounce them to a single file
  • Record audio onto armed channels directly in the browser

Could replace

  • Adobe Audition

Adobe Audition (single app) starts at £21.98 a month (billed monthly, Price includes VAT for individuals. The business price (£73.33 per licence) excludes VAT. The student and teacher Creative Cloud Pro plan (£16.24 a month) is cheaper but is a full-suite plan for eligible education customers only.; source, checked 27 Oct 2026)

Our suggestion based on what it does, not a feature-by-feature comparison.

Make money with it

Offer podcast editing or voiceover clean-up as a freelance service, using it as a free editing tool.

An idea, not financial advice. Check the licence before charging for anything built on it.

Ways a business could use it

  • Edit podcast episodes, voiceovers and adverts in-house instead of paying for editing software or an editor
  • Tidy up recorded calls, interviews or training audio before publishing to customers

Can you use it commercially?

Free to use, change and sell (MIT-style terms in the licence file). Some folders may carry other terms.

Not legal advice. Read the project's licence file before building a product on it.

Getting it running

Download the repository, then run the small bundled Go or Python web server from the src folder and open localhost:5055; a hosted version is also available at audiomass.co.

Follow the official instructions in the project README.

Things to check

  • Licence is not clearly stated (no recognised licence detected), so check before commercial use or redistribution

Checked 27 Oct 2026. Summary drafted by AI from the project's README.

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