Audio tool

Audio Compressor

Export a short local audio clip as a smaller Opus copy at a selected target bitrate.

Free browser tool

No Matrix computer needed

✓ No account or card

✓ Use the result right away

✓ Task-specific limits below

Workspace

Use audio compressor

Runs in this browser tab

Choose audio

Mono or stereo, up to 80 MB and 3 minutes. Input formats depend on your browser's decoder. Files stay on this device.

Result

Your processed audio will be ready to preview and download here.

Compressed encoding plays the file in real time. Opus output requires browser support and may not play in every app.

How to use it

Choose audio and a target bitrate, then preview and download the Opus result.

What to check

Opus encoding requires browser support. A lower bitrate can reduce quality, and final file size varies.

Review the result before using it in a published page, application, or agent configuration.

Quick answers

Frequently asked questions

How does Audio Compressor reduce file size?

It exports an Opus copy at your selected target bitrate when the browser supports compressed encoding. Final size can vary.

Will a lower Opus bitrate always sound acceptable?

No. Lower bitrates can add audible encoding artifacts. Compare the processed preview with the original before downloading.

Keep exploring

Related free tools

Audio Noise Reducer Audio Pitch and Speed Audio Workspace

Keep your tools and files together with Matrix

Utilities brings everyday text, file, and developer tools into Matrix. Some advanced browser tools remain on the website. The desktop client connects to your private Matrix cloud computer, which requires a paid plan.

Get Matrix