Turn AC3 audio files into FLAC. It is converted in your browser, so the file never leaves your device.
Drop AC3 files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop AC3 (Dolby Digital) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. Open Options first if you want to change the defaults. The work happens in this tab.
Save the FLAC, or download everything as one ZIP if you converted several files.
The AC3 to FLAC converter is part of this page and runs inside your browser. Your audio files are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
AC3 is a surround-sound format that many phones, browsers and music players cannot play. FLAC keeps full quality at about half the size of WAV. An AC3 file usually holds Dolby Digital, up to 5.1 channels. AC3 is at home in surround-sound film audio; FLAC is the usual choice for archiving music at full quality. FLAC cannot bring back detail that AC3 compression already removed; it simply stores the result without further loss, in a larger file.
The defaults suit most files. Under Options you can trim the start and end.
This pair uses the compatibility engine, ffmpeg built for the browser, because AC3 is not handled by the browser's built-in codecs. It is a one-off download of about 10 MB that the browser keeps, it is slower than the built-in codecs, and it takes files up to 1 GB.
AC3 is the codec behind Dolby Digital, the surround-sound format of DVDs, digital television and many streaming services. A file can carry up to 5.1 channels. Most stereo music players do not handle it, so the track is usually extracted for editing or for devices that expect something else.
Opens in TVs, home-theatre receivers, DVD and Blu-ray players and VLC; many phones and browsers do not play it directly
AC3 converterFLAC compresses audio to roughly half the size of WAV without losing anything, like a ZIP for sound. It is the standard for lossless music collections. Apple's Music app is the notable holdout.
Opens in Android, Windows, VLC, most hi-fi players; Apple Music does not import it
FLAC converter| AC3Dolby Digital audio | FLACFLAC audio | |
|---|---|---|
| Stands for | Dolby Digital (Audio Codec 3) | Free Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Introduced | The early 1990s, by Dolby Laboratories | 2001, by Josh Coalson and the Xiph.Org Foundation |
| Opens in | TVs, home-theatre receivers, DVD and Blu-ray players and VLC; many phones and browsers do not play it directly | Android, Windows, VLC, most hi-fi players; Apple Music does not import it |
| Best for | Surround-sound film audio | Archiving music at full quality |
| File extension | .ac3 | .flac |
No. The AC3 to FLAC conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
No further quality is lost: FLAC stores the decoded audio exactly. It cannot restore what AC3 compression already discarded, and the file will be larger.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the AC3 file, press Convert and save the FLAC. There is nothing to install.
Yes. AC3 to FLAC runs on the compatibility engine, which takes files up to 1 GB, and a long clip takes a while because it is slower than the browser's built-in codecs. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.