Convert FLAC to Opus
Convert any audio file to Opus format online for free. Fast, secure, and easy-to-use audio to Opus converter with no software installation required.
Drag & Drop Audio File
or click below to browse
Supported formats (Max 50MB, 30 min • Sign in for 200MB, 1 hr)
Why Choose Scriptivox FLAC to Opus Converter?
Fast Conversion
Our powerful servers process your files quickly, delivering converted files in seconds.
100% Free
Convert your files completely free with no hidden costs or subscription fees.
Secure & Private
Your files are encrypted and automatically deleted after conversion. We never store or share your data.
No Installation
Works directly in your web browser. No software download or installation required.
How to Use FLAC → Opus
Upload File
Drag and drop your FLAC file or click to browse. Supports files up to 1GB.
Convert
Select Opus as your output format and click convert. Our servers will process your file instantly.
Download
Download your converted file instantly. The download link expires in 1 hour for security.
FLAC vs Opus: format comparison
How the two formats differ on the things that change your result.
| Specification | FLAC (source) | Opus (result) |
|---|---|---|
| Container | FLAC | Ogg |
| Developed by | Xiph.Org Foundation | Xiph.Org / IETF |
| Introduced | 2001 | 2012 |
| Audio codecs | FLAC | Opus |
| Compression | Lossless (compressed) | Lossy |
| Max sample rate | 192 kHz | 48 kHz |
| Max channels | 8 | 255 |
| Gapless playback | Yes | Yes |
| Metadata / tags | Vorbis comments | Vorbis comments |
| Approx. file size | 5–7 MB per minute | 0.48–1.44 MB per minute |
| Licensing | Royalty-free | Royalty-free |
| Plays natively on | Native: Web browsers, Windows, macOS, iOS, Android · Needs a player: Smart TVs | Native: Web browsers, Android · Needs a player: Windows, macOS, iOS |
| Best for | long-term archiving, audiophile listening, CD ripping | voice and calls, podcasts, web delivery |
What changes when you convert FLAC to Opus
Converting FLAC to Opus trades detail for size, and the trade is permanent. Encode at the top of the 64 to 256 kbps range if the file will be edited again later. Size falls from about 6 MB per minute to around 1 MB per minute.
This direction reduces compatibility rather than improving it, with 3 platforms losing native support. It is the right choice for a specific workflow, not for sharing widely.
FLAC can carry sample rates up to 192 kHz, but Opus tops out at 48 kHz. High-resolution sources are resampled down on the way through.
This conversion moves the file toward a different purpose: FLAC suits long-term archiving, audiophile listening, CD ripping, whereas Opus is chosen for voice and calls, podcasts, web delivery.
About FLAC to Opus Conversion
Converting FLAC to Opus means moving audio out of the FLAC container, introduced in 2001, and into Ogg, which arrived in 2012. The two were designed with different priorities, and that is what determines whether this conversion costs you quality, storage, or compatibility.
Developed by Xiph.Org Foundation in 2001, FLAC stores audio using FLAC. That codec choice sets the upper bound on what any conversion can preserve.
Opus, from Xiph.Org / IETF and dating to 2012, uses Opus and plays natively on 2 of the six platform categories we track. That combination is usually why people convert into it.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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