Convert OGG to FLAC — Free Online Converter

OGG Vorbis is Xiph.org's lossy audio codec, delivering excellent quality at moderate bitrates. FLAC (Free Lossless Audio Codec), also from the Xiph.org family, is the universal open-source lossless standard. Both share the Xiph.org lineage — Vorbis comments work identically in both formats, and they share the same metadata system. FLAC achieves 50-60% compression compared to raw PCM.

Converting OGG to FLAC decodes the Vorbis audio to PCM and re-encodes it losslessly. The FLAC output preserves the full decoded quality of your OGG source in a lossless container, creating a permanent archive that won't degrade with future transcoding operations.

FLAC provides a lossless safety net for your OGG audio. If you need to transcode to AAC, MP3, or any other format in the future, starting from FLAC avoids the generation loss of transcoding from one lossy format to another. The FLAC file captures the full fidelity of what Vorbis preserved.

Since OGG Vorbis and FLAC share the Xiph.org metadata system (Vorbis comments), tag compatibility is perfect — every metadata field transfers directly without mapping or translation. Album art, ReplayGain values, and custom tags all carry over seamlessly.