Opus Converter
Convert Opus audio files to MP3, WAV, OGG, FLAC, M4A and AAC and 7 more formats — free, in batches, files up to 10 GB, with no sign-up and no watermark.
Drop your Opus file
Choose the format you need
Download the result
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or drag & drop — audio or video files
Free · Unlimited · No sign-up · Max 10 GB
Your privacy is our mission. Most files are converted right in your browser and never leave your device. Only large files, or formats a browser cannot process, are sent to our server over an encrypted connection — they are never stored, never shared, and deleted as soon as your download is ready.
What Is an Opus File?
Opus is the most efficient general-purpose audio codec in wide use: it sounds good at bitrates where MP3 falls apart. WhatsApp voice notes, Discord and YouTube all use it. Opus is a lossy format: it makes files small by discarding detail that is hard to notice. Converting it to another format cannot bring that detail back.
Opus Facts
| Full name | Opus Interactive Audio Codec |
|---|---|
| File extension | .opus |
| Type | Audio |
| How it stores data | Lossy compression |
| Created by | IETF (Xiph.Org, Mozilla, Skype), 2012 |
| Best for | voice, podcasts and music at small file sizes |
| Watch out | older devices, car stereos and Apple's apps do not play .opus files |
| Opens with | VLC, Firefox, Chrome, Android, foobar2000 |
How to Open an Opus File
A .opus file opens with VLC, Firefox, Chrome, Android, foobar2000. If none of those is at hand — or the file has to go into a program, device or website that refuses Opus — convert it: MP3, WAV and OGG are the usual choices.
Convert Opus to Another Format
Convert Other Formats to Opus
- MP3 to Opus
- WAV to Opus
- OGG to Opus
- FLAC to Opus
- M4A to Opus
- AAC to Opus
- ALAC to Opus
- AIFF to Opus
- AMR to Opus
- AC3 to Opus
- AU to Opus
- CAF to Opus
- GSM to Opus
- WMA to Opus
- TTA to Opus
- M4B to Opus
- MKA to Opus
- MP4 to Opus
- WebM to Opus
- MOV to Opus
- MKV to Opus
- AVI to Opus
- FLV to Opus
- WMV to Opus
- 3GP to Opus
- TS to Opus
- OGV to Opus
- VOB to Opus
Opus Compared
Frequently Asked Questions
What is an Opus file?
Opus is the most efficient general-purpose audio codec in wide use: it sounds good at bitrates where MP3 falls apart. WhatsApp voice notes, Discord and YouTube all use it.
How do I open a .opus file?
With VLC, Firefox, Chrome, Android, foobar2000. If your device or program does not accept it, convert the file to a format it does.
How do I convert an Opus file?
Drop the file into the converter on this page, choose the target format — MP3, WAV, OGG, FLAC and M4A and others — and press Convert. It is free, there is no account and several files can be converted at once.
Is Opus lossy or lossless?
Opus is a lossy format: it makes files small by discarding detail that is hard to notice. Converting it to another format cannot bring that detail back.
What is Opus good for, and what are its limits?
Best for: voice, podcasts and music at small file sizes. Watch out: older devices, car stereos and Apple's apps do not play .opus files.
Is the Opus converter free, and how big can the files be?
It is free, with no account, no watermark and no daily limit. Files can be up to 10 GB each.
Which formats can be converted to Opus?
MP3, WAV, OGG, FLAC, M4A, AAC, ALAC, AIFF, AMR, AC3, AU and CAF and 16 more.