Click the "Select File" button above, and choose your AC3 file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert AC3 to another file type
The converter easily converts your AC3 audio files to various formats - free and online. No VLC media player or or other Audio software needed.
AC3 to MP3
AC3 to MP4
AC3 to WAV
AC3 to AAC
AC3 to EAC3
AC3 to FLAC
AC3 to DTS
AC3 to OGG
AC3 to WMA
AC3 to AIFF
AC3 to OPUS
AC3 to M4V
Convert a file to AC3
The converter also works in reverse, so you can convert other "Surround Sound Codec" formats to AC3 without using software like VLC media player or a similar tool.
AAC to AC3
TTA to AC3
AU to AC3
WV to AC3
DTS to AC3
FLAC to AC3
MP3 to AC3
PCM to AC3
WAV to AC3
TTY to AC3
MPEGTS to AC3
LRC to AC3
About AC3 files
The .AC3 file extension represents Audio Codec 3, a perceptual digital audio coding technique developed by Dolby Laboratories. It is the industry standard for 5.1 surround sound in DVDs, Blu-rays, and HDTV broadcasts. While AC3 offers a rich cinematic audio experience, it poses significant compatibility challenges for modern portability. Most web browsers, mobile devices, and default media players (like QuickTime or Windows Media Player) cannot natively decode AC3 streams, often resulting in the dreaded "video plays but no audio" error. To share these files, listen on smartphones, or edit the audio in software like Audacity, users must typically convert AC3 to more universally supported formats like MP3 or AAC (for general listening) or WAV (for lossless editing).
Use Convert.Guru to open and convert your AC3 file.
If you want to convert AC3 file to M4A, you can use VLC media player or similar software from the "Surround Sound Audio" category. In the File menu, look for Save As… or Export….
To convert MIDI, MID or RA files to AC3, try VLC media player or another comparable tool in the "Surround Sound Audio" category.
The AC3 Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our AC3 converter.