AC3 Converter

Convert AC3 (Dolby Digital (AC-3) audio) files online, for free, with nothing to install.

AC3 is Dolby Digital: the audio of DVDs, many Blu-rays and TV broadcasts, up to 5.1 channels. Files for home cinema equipment use it. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost. AC3 files can be saved as AAC, AIFF, FLAC, M4A, MP3, WAV, WMA, on our server.

What is an AC3 file?

AC3 – Dolby Digital (AC-3) audio. AC3 is Dolby Digital: the audio of DVDs, many Blu-rays and TV broadcasts, up to 5.1 channels. Files for home cinema equipment use it. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

How to convert an AC3 file

  1. Click Select File, or drop your .ac3 files anywhere on this page.
  2. Pick the format you want next to each file, for example AAC.
  3. Click Convert, then Download when it's done.

AC3 at a glance

AC3
LayoutA stream of sound
EditableIn audio editors
Created byDolby, 1992
Best forHome cinema equipment

Frequently asked questions

What is an AC3 file?

AC3 is Dolby Digital: the audio of DVDs, many Blu-rays and TV broadcasts, up to 5.1 channels. Files for home cinema equipment use it. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

How do I open an AC3 file?

Most media players open AC3 files: VLC plays almost every audio format, and the player on your phone or computer handles the common ones. To read it anywhere, convert it to MP3 here.

Is converting AC3 files free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my AC3 files uploaded anywhere?

This conversion runs on our server, because converting audio needs ffmpeg, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.

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