OPUS to FLAC Converter
Convert OPUS audio to FLAC for free. Choose the bitrate, sample rate and channels, or trim your audio.
or drop files here
Up to 1 GB per file · Files never leave your device
- 100% free
- No sign-up
- No upload — private
- No watermark
How to convert OPUS to FLAC
Add your OPUS files
Click “Choose Files” or drag and drop your OPUS audios onto this page.
FLAC is selected
The output is already set to FLAC. Open Advanced settings if you want to change the bitrate or trim the audio.
Convert and download
Click Convert. Your FLAC file is ready in moments — nothing is uploaded.
About the formats
Opus Audio
Opus is a modern open audio codec with excellent quality at low bitrates. WhatsApp, Discord and WebRTC use it for voice.
Free Lossless Audio Codec
FLAC compresses audio without losing any quality. It is the favourite format of audiophiles and music archives.
Frequently asked questions
How do I convert OPUS to FLAC?
Click “Choose Files” and select your OPUS file (or drag it onto the page). FLAC is already selected as the output, so just click Convert and download your FLAC file when it’s ready.
Which bitrate should I choose?
FLAC is lossless, so there is no bitrate to choose — the audio is stored at full quality.
Is it safe to convert OPUS files here?
Yes. Conversion runs inside your own web browser, so your files are never uploaded to our servers or anyone else’s. Nobody can see them, and nothing is stored after you close the tab.
Is the OPUS to FLAC converter free?
Yes, it’s completely free. There’s no sign-up, no watermark and no limit on how many files you convert. Each file can be up to 1 GB.
Can I convert several OPUS files at once?
Yes. Add as many OPUS files as you like and convert them in one go, then download them one by one or together as a ZIP file.