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Convert.opus

Convert Opus to MP3 online

100% localFiles never leave your device — no upload, no account, no tracking.
About Opus to MP3

Convert Opus files into MP3 that plays on virtually any device or app. Choose a bitrate and we transcode to MP3 with the LAME (libmp3lame) encoder locally.

The conversion runs entirely in your browser via WebAssembly. Your Opus never leaves your device and nothing is uploaded.

How it works
  1. 01

    Add an Opus

    Drop your Opus file onto the page or pick it from your device.

  2. 02

    Set bitrate

    Choose the MP3 bitrate for the output.

  3. 03

    Convert

    Click Convert to encode an MP3 with the LAME encoder locally.

  4. 04

    Download

    Save the MP3 file.

Features
adjustable bitrateplays anywherebroad compatibility
Frequently asked
How does the Opus to MP3 converter work?
Convert Opus files into MP3 that plays on virtually any device or app. Choose a bitrate and we transcode to MP3 with the LAME (libmp3lame) encoder locally.
Are my files uploaded to a server?
No. Everything runs entirely in your browser using local JavaScript and WebAssembly. Your files never leave your device.
Does it cost anything or require an account?
No. The converter is free, needs no sign-up, and runs locally in your browser.
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