LIHA Tools

Opus to AAC / M4A Converter

Convert Opus audio to AAC / M4A 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 Opus to AAC / M4A conversion works

Opus decode → normalized audio stream → AAC / M4A encode

Reading Opus

Opus input is decoded from its Ogg container with compatible tags and stream timing.

Creating AAC / M4A

AAC / M4A output uses efficient lossy AAC audio in an M4A container with compatible metadata.