Convert Ogg Audio (.oga) to Free Lossless Audio Codec (.flac) online for free. Fast, secure audio conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .ogg file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flac file when it's ready.
Converting OGA to FLAC extracts Ogg Audio content into a standalone FLAC file. If the OGA contains FLAC audio, this is a pure container swap — the FLAC bitstream is extracted from the Ogg container into a native FLAC container with zero quality change. If the OGA contains Vorbis, the lossy audio is decoded to PCM and re-encoded as lossless FLAC.
The standalone .flac extension is more widely recognized than .oga by media players, DAWs, and file managers. This conversion improves compatibility while preserving maximum audio quality.
Standalone FLAC files (.flac) have broader software support than OGA-wrapped FLAC. Many media players, DAWs, and tagging tools recognize .flac but may not properly handle .oga files containing FLAC audio. Converting ensures universal FLAC tool compatibility.
For OGA/Vorbis files, converting to FLAC creates a decode-once lossless archive. The FLAC captures the decoded Vorbis audio without additional degradation, providing a lossless master for future format conversions.
For OGA containing FLAC: FFmpeg can stream-copy the FLAC bitstream from the Ogg container to a native FLAC container — this is instantaneous and lossless with zero re-encoding. For OGA containing Vorbis: FFmpeg decodes Vorbis to PCM and encodes to FLAC using linear prediction and residual coding. The FLAC output from Vorbis is lossless relative to the decoded audio.
From OGA/FLAC: bit-perfect — the FLAC data is identical. From OGA/Vorbis: lossless relative to the decoded audio — Vorbis compression artifacts are preserved without additional degradation. The FLAC file from Vorbis is larger than the OGA (storing decoded PCM losslessly) but adds no quality loss.
| Device | OGG | FLAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
OGA to FLAC improves compatibility while preserving maximum quality. From OGA/FLAC, the conversion is instantaneous and bit-perfect.
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| No |
| Funktion | OGG | FLAC |
|---|---|---|
| Fulde navn | Ogg Vorbis | Free Lossless Audio Codec |
| Filendelse | .ogg | .flac |
| Bedst til | Open source | Lossless compression |