AC-3 or E-AC-3 audio inside MKV, MPEG-TS (.ts / .m2ts), MP4, MOV, or WAV. Raw .ac3 elementary streams may not open — remux into a container first.

Is the file uploaded?

No. Decoding and encoding stay on your device.

Will a full movie fit?

Probably not — we cap at 80 MB or 30 minutes. Trim or extract a shorter clip first.

We encode stereo MP3. Multi-channel AC-3 is downmixed for sharing.

Pull Dolby Digital audio out of a rip or TV capture and save MP3. Runs in your browser. Your file never leaves this device.

Choose a file with AC-3 / E-AC-3 audio (MKV, TS, MP4, MOV, or WAV)
Pick a quality (default High, 192 kbps); set an exact bitrate under Advanced settings
Click Convert and wait for encoding
Preview, then download the MP3