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Best Productivity ResourcesBy Shushant LakhyaniVerified creator

Web App

AudioMass

A free, open-source audio editor that runs in your browser.

Visit AudioMass4.4

  • Rating

    4.4 / 5

  • Pricing

    Free

  • Difficulty

    Beginner

  • Works on

    Web

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What is AudioMass?

AudioMass is a free, open-source audio and waveform editor that runs entirely in the browser. You can record or open a file, cut, copy and paste sections, apply effects such as fades, normalisation, compression and reverb, and export the result without installing anything.

Pros: what AudioMass does well

  • Nothing to install
  • Useful set of effects
  • Light enough for modest computers

Cons: where it falls short

  • Not built for multitrack projects
  • Large files can slow the browser

Who AudioMass is for

Creators and students who need quick audio trims, fixes or recordings.

Who can skip it

Podcasters and musicians who already use a full audio workstation.

What people use AudioMass for

  • Trimming, fading and cleaning up a voice recording or podcast clip
  • Recording a quick voiceover straight from your microphone in the browser
  • Layering a few tracks, such as voice and music, and mixing them down to one file

How to get started

  1. 1Open audiomass.co in a modern browser; there is nothing to install or sign up for.
  2. 2Drag in an audio file, or press the Recording button (or the R key) to record.
  3. 3Select part of the waveform to cut, copy or paste, and preview effects before applying them.
  4. 4Choose File, then Export to mp3, to save the result.

AudioMass pricing

AudioMass is free and open source under the MIT licence. There is no account, no paid plan and no backend: audio is processed locally in your browser. See current prices on AudioMass's site

Checked 2026-10-27. Prices change, so double-check before you pay.

AudioMass FAQ: quick answers

Is AudioMass safe to use with private recordings?
It runs locally in the browser with no backend, so your audio is edited on your own device rather than uploaded to a server.
Which effects does AudioMass include?
Gain, fades, compression, normalisation, reverb, delay, distortion and pitch shifting, plus tools for repairing clicks and hum.
Does AudioMass work offline?
Yes. Once the page has loaded it can keep working without a connection.

AudioMass alternatives

Not sold on AudioMass? These do a similar job, and each card says what it has in common.

All Workflows resources

BentoPDF

Focus: pdf tools, merge pdf and privacy. Shares open source with AudioMass. Rated 4.7 (AudioMass: 4.4).

Web AppFreeWeb, Cross-Platform
4.7Visit

Squoosh

Focus: image compression, webp and avif. Shares open source with AudioMass. Adds Offline. Rated 4.7 (AudioMass: 4.4).

Web AppFreeWeb, Offline
4.7Visit

SVGOMG

Focus: svg, optimisation and web performance. Shares open source with AudioMass. Adds Offline. Rated 4.7 (AudioMass: 4.4).

Web AppFreeWeb, Offline
4.7Visit

OmniTools

Focus: online tools, file conversion and self-hosted. Shares open source with AudioMass. Rated 4.6 (AudioMass: 4.4).

Web AppFreeWeb, Cross-Platform
4.6Visit

Stirling PDF

Focus: pdf editor, pdf tools and self-hosted. Shares open source with AudioMass. Freemium (AudioMass: Free). Adds Windows, macOS and Linux. Rated 4.6 (AudioMass: 4.4).

Web AppFree planWeb, Windows
4.6Visit

VERT

Focus: file converter, image conversion and privacy. Shares open source with AudioMass. Rated 4.6 (AudioMass: 4.4).

Web AppFreeWeb, Cross-Platform
4.6Visit

Free alternatives to AudioMass

Want to spend nothing? These free picks cover similar ground.

ConvertX

Focus: file converter, documents and self-hosted. Shares open source with AudioMass. Adds Linux. Rated 4.5 (AudioMass: 4.4).

Web AppFreeWeb, Linux
4.5Visit

fzf

Focus: fuzzy finder, command line and shell. Shares open source with AudioMass. A desktop app, not a web app. Adds macOS, Windows and Linux. Rated 4.8 (AudioMass: 4.4).

Desktop AppFreemacOS, Windows
4.8Visit

bat

Focus: file viewer, command line and developer tool. Shares open source with AudioMass. A desktop app, not a web app. Adds macOS, Windows and Linux. Rated 4.7 (AudioMass: 4.4).

Desktop AppFreemacOS, Windows
4.7Visit

HandBrake

Focus: video converter, compression and media. Shares open source with AudioMass. A desktop app, not a web app. Adds Windows, macOS and Linux. Rated 4.7 (AudioMass: 4.4).

Desktop AppFreeWindows, macOS
4.7Visit

OCRmyPDF

Focus: ocr, scanned pdf and command line. Shares open source with AudioMass. A desktop app, not a web app. Adds macOS, Windows and Linux. Rated 4.7 (AudioMass: 4.4).

Desktop AppFreemacOS, Windows
4.7Visit

rclone

Focus: cloud sync, backup and file transfer. Shares open source with AudioMass. A desktop app, not a web app. Adds Windows, macOS and Linux. Rated 4.7 (AudioMass: 4.4).

Desktop AppFreeWindows, macOS
4.7Visit
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