Bulk OPUS to FLAC Converter Online — Free HD Quality
Drag and drop your multiple OPUS files into this 100% free online OPUS to FLAC converter (.opus to .flac), and click the Convert button to bulk convert them to FLAC format in HD quality. Use the quality slider to fine-tune your FLAC output, then download your converted files one by one or as a single ZIP — no signup and no downloads needed, and your original OPUS files are removed from our servers right after. Also see:Bulk WAVE to ANDROID tool.
Drop your OPUS files here to convert to FLAC, or click to browse
Converts .opus to FLAC (.flac) in HD quality — bulk, free, no signup
Choose FilesOPUS vs FLAC — File Format Comparison
See how OPUS and FLAC compare across file extension, MIME type, compression, and feature support. Related:Bulk convert MP3 to MP2.
| Feature | OPUS | FLAC |
|---|---|---|
| File Extension | .opus | .flac |
| MIME Type | audio/opus | audio/flac |
| Compression Type | Lossy | Lossless |
| Metadata Support | Yes | Yes |
What Is OPUS Format?
Opus — the IETF standard for internet voice and music streaming; outperforms MP3, AAC, and Vorbis at every bitrate, and is the default codec for WebRTC, Discord, and Spotify Connect. See also:Convert AC3 to APE.
- Compression: Lossy
- Tags & Metadata: Supported
What Is FLAC Format?
Free Lossless Audio Codec — open-source lossless compression that reduces file size by 40–60% versus WAV with zero quality loss, perfect for audiophile archiving.
- Compression: Lossless
- Tags & Metadata: Supported