How to convert OPUS to FLAC
To convert OPUS to FLAC, upload your OPUS file, choose FLAC as the output format and press Convert. The finished FLAC file is ready to save to your phone or computer in seconds, free, with no watermark and no sign-up. Your file is deleted from our server about 30 minutes after the conversion.
This free online converter turns OPUS audio files into FLAC in your browser, with no software to install and no watermark. The conversion runs on our server using ffmpeg, and the result is ready to save to your phone or computer in seconds. Your OPUS file is deleted automatically about 30 minutes after the conversion.
Why convert OPUS to FLAC?
- Bit-perfect copy of the original
- About 40 to 60 percent smaller than WAV
- Supports tags and cover art
- Opens in: VLC, foobar2000, Android, Windows 10+, many hi-fi players and recent iOS
What to expect from this conversion
- OPUS is lossy and FLAC is not, so the file gets much larger but cannot regain detail that OPUS compression already removed.
- Tags such as title and artist are carried over where FLAC supports them.
OPUS vs FLAC
| Property | OPUS | FLAC |
|---|---|---|
| Full name | Opus Interactive Audio Codec | Free Lossless Audio Codec |
| Released | 2012, IETF (Xiph.Org, Mozilla, Skype) | 2001, Xiph.Org Foundation |
| Family | Audio | Audio |
| Compression | Lossy | Lossless |
| Opens in | Chrome, Firefox, Android, Discord, VLC; partial on Safari and iOS | VLC, foobar2000, Android, Windows 10+, many hi-fi players and recent iOS |
| Best for | voice messages and calls; streaming at low data rates | archiving a CD collection; audiophile listening |
Steps to convert OPUS to FLAC
- Drop your OPUS file onto the converter, or click to choose it.
- Check that FLAC is selected as the target format and adjust the options if you want.
- Press Convert, then save the new FLAC file to your device when it finishes.
Tips for the best result
- Choose High for music you care about and Small for voice recordings.
- Convert from the original lossless file when you have one.
Frequently asked questions
How do I convert OPUS to FLAC?
Drop your OPUS file on the converter, confirm that FLAC is the target format and press Convert. When it finishes, press Save to device or download the FLAC file. No account or software is needed.
Is the OPUS to FLAC converter free?
Yes. It is free, with no watermark, no sign-up and no limit on how many files you convert. The site is supported by ads.
What should I know before converting OPUS to FLAC?
OPUS is lossy and FLAC is not, so the file gets much larger but cannot regain detail that OPUS compression already removed. Tags such as title and artist are carried over where FLAC supports them.
Will the sound quality change when converting OPUS to FLAC?
OPUS is lossy and FLAC is not, so the file gets much larger but cannot regain detail that OPUS compression already removed.
Which programs open FLAC files?
FLAC files open in VLC, foobar2000, Android, Windows 10+, many hi-fi players and recent iOS.
How large a file can I convert?
Up to 200 MB per file. Files are deleted from the server about 30 minutes after conversion, and no one looks at them.