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FLAC to Opus - Online Audio Converter
Convert FLAC to Opus online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert FLAC to Opus
Drop FLAC audio here or click to select
FLAC
Opus (Opus)
About FLAC to Opus
Convert FLAC to Opus. FLAC halves WAV sizes bit-for-bit with open hardware support. Opus adapts from 6 kbps speech to 510 kbps music with low latency. CD-era hardware may not decode it; use MP3 for legacy players..
Why convert FLAC to Opus?
- Smaller files with Opus lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
FLAC vs Opus
| Codec | FLAC | Opus |
|---|---|---|
| Compression | lossless | lossy |
| Sample behavior | Full quality kept | Quality set by bitrate |
| Typical use | FLAC halves WAV sizes bit-for-bit with open hardware support. | Opus adapts from 6 kbps speech to 510 kbps music with low latency. |
When not to convert FLAC to Opus
- Skip Opus for archival masters: lossy compression discards detail, so keep the FLAC original.
- Keep a master copy: repeated exports stack small losses, so archive FLAC before batch Opus shares.
Limits
Starting point: FLAC - Bit-identical compression near half the WAV size. Apple players prefer ALAC; convert for iPhone libraries. CD-era hardware may not decode it; use MP3 for legacy players. Encode Opus (Opus) from FLAC at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert FLAC to Opus?
Drop your FLAC file onto this page, choose quality and codec settings, then click Convert. The result downloads as Opus instantly. All processing runs in your browser.
What codec is used for Opus?
The default codec for Opus is Opus. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.