How to open a .ac3 file
Quick, free ways to open AC-3 on any system.
A .ac3 file is a Dolby Digital Audio. If double-clicking does nothing, your computer simply does not have an app that reads AC-3 yet. Here is how to fix that on each operating system, using free software wherever possible.
Open a .ac3 file step by step
- Confirm the file really is a .ac3. Drop it into the WhatFileType file identifier, which reads its signature without uploading anything.
- On Windows, open it with VLC or foobar2000.
- On Mac, use VLC or IINA.
- On Linux, try VLC or ffmpeg.
- Still stuck? Convert the .ac3 to wav, which opens more widely.
Best apps to open .ac3 files
Windows
- VLC
- foobar2000
- MPC-HC
macOS
- VLC
- IINA
Linux
- VLC
- ffmpeg
- mpv
!
Before you open it: Safe. AC-3 is a compressed audio stream decoded by a media player.
Frequently asked questions
Why can't I open my .ac3 file?
Almost always because no installed app understands AC-3. Install one of the apps above, or convert the file to a format your existing software already reads.
How do I open an AC3 file?
Play it in VLC, which decodes Dolby Digital. To play it on a stereo-only device, convert it to WAV or AAC.
Is AC-3 the same as Dolby Digital?
Yes. AC-3 is the technical name for Dolby Digital, the 5.1 surround format on DVDs, Blu-rays and broadcast TV.