How to convert FLAC to OPUS
To convert FLAC to OPUS, upload your FLAC file, choose OPUS as the output format and press Convert. The finished OPUS 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 FLAC audio files into OPUS 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 FLAC file is deleted automatically about 30 minutes after the conversion.
Why convert FLAC to OPUS?
- Excellent quality even at very low bitrates
- Handles both speech and music
- Used by WhatsApp, Discord and YouTube
- Opens in: Chrome, Firefox, Android, Discord, VLC; partial on Safari and iOS
What to expect from this conversion
- FLAC is lossless and OPUS is lossy, so the file gets much smaller. The quality setting balances size and sound.
- Tags such as title and artist are carried over where OPUS supports them.
FLAC vs OPUS
| Property | FLAC | OPUS |
|---|---|---|
| Full name | Free Lossless Audio Codec | Opus Interactive Audio Codec |
| Released | 2001, Xiph.Org Foundation | 2012, IETF (Xiph.Org, Mozilla, Skype) |
| Family | Audio | Audio |
| Compression | Lossless | Lossy |
| Opens in | VLC, foobar2000, Android, Windows 10+, many hi-fi players and recent iOS | Chrome, Firefox, Android, Discord, VLC; partial on Safari and iOS |
| Best for | archiving a CD collection; audiophile listening | voice messages and calls; streaming at low data rates |
Steps to convert FLAC to OPUS
- Drop your FLAC file onto the converter, or click to choose it.
- Check that OPUS is selected as the target format and adjust the options if you want.
- Press Convert, then save the new OPUS 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 FLAC to OPUS?
Drop your FLAC file on the converter, confirm that OPUS is the target format and press Convert. When it finishes, press Save to device or download the OPUS file. No account or software is needed.
Is the FLAC to OPUS 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 FLAC to OPUS?
FLAC is lossless and OPUS is lossy, so the file gets much smaller. The quality setting balances size and sound. Tags such as title and artist are carried over where OPUS supports them.
Will the sound quality change when converting FLAC to OPUS?
FLAC is lossless and OPUS is lossy, so the file gets much smaller. The quality setting balances size and sound.
Which programs open OPUS files?
OPUS files open in Chrome, Firefox, Android, Discord, VLC; partial on Safari and 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.