LIHA Tools

MP3 to Opus Converter

Convert MP3 audio to Opus in a browser-only batch. Files and results are never uploaded.

Files stay in this browser tab and are never uploaded. Up to 250.0 MiB per file and 50 files.

Common output settings

Advanced settings

The batch workspace is ready. Audio encoding becomes available after the verified browser engine is loaded.

How MP3 to Opus conversion works

MP3 decode → normalized audio stream → Opus encode

Reading MP3

MP3 input is decoded with compatible ID3 tags and artwork inspected before conversion.

Creating Opus

Opus output is efficient for speech and music and is stored in an Ogg container.