Your files stay on your device
M4A to OPUS
Turn M4A audio into Opus, right in your browser.
Drop your M4A files here
or click to browse from your device
Supports: M4A
Saved as Opus right in your browser. Files that already hold Opus sound copy over unchanged; others are re-saved, so pick the quality below.
Paste, drop, or type to begin. Everything stays on this device.