Select eligible OGG files
Add non-empty .ogg files up to 100 MB each. The source must contain audio that host FFmpeg can read.
Server-backed OGG to FLAC conversion
Create a FLAC file from supported OGG audio.
Convert eligible OGG audio into new audio-only FLAC downloads from the first available audio stream.
- New FLAC output
- Audio-only result
- 100 MB per file
Processed by our self-hosted conversion engine
Supported files
OGG source, FLAC result.
OGGFLAC
A supported OGG source is decoded and its first audio stream is encoded into a new FLAC file. FLAC cannot recover detail discarded by earlier lossy OGG encoding.
How it works
Queue OGG files, then download new FLAC audio.
Run the fixed conversion
Start the queue to process one file at a time with this route’s FLAC FFmpeg profile.
Check and download each FLAC
Review a completed result in compatible software, then download its separately named FLAC file.
Processing boundaries
Fixed FLAC output from the first audio stream.
The profile maps only the first audio stream, excludes video, removes source metadata and chapters, and makes a new FLAC output.
Convert OGG to FLACOGG files up to 100 MB
Only non-empty .ogg uploads of 100 MB or less are accepted. Unsupported or unreadable audio sources cannot be converted.
New FLAC encoding
The FLAC preserves decoded OGG samples, not a higher-quality original. It is not a stream copy and does not guarantee a smaller or fixed-size file.
First audio stream only
Only the first audio stream is mapped. Video, alternate tracks, subtitles, and attachments are excluded from this audio-only result.
No source tags or editing controls
Source metadata and chapters are removed. This route provides no trim, stream-selection, bitrate, sample-rate, channel, or quality controls.
OGG-to-FLAC details
Understand the file before you convert
Which OGG files can I upload?+−
Use non-empty .ogg files up to 100 MB. Host FFmpeg must be able to read an audio stream in the source.
What does the downloaded FLAC contain?+−
A successful conversion contains a newly encoded, audio-only FLAC result from only the first audio stream using FLAC.
Can I add more than one file?+−
Yes. Add multiple eligible files. The browser submits each queue item sequentially and every completed result has a separate download.
Is OGG to FLAC a stream copy?+−
The FLAC preserves decoded OGG samples, not a higher-quality original. It is not a stream copy and does not guarantee a smaller or fixed-size file.
Will source metadata or chapters remain?+−
No. The conversion profile removes source metadata and chapters. Alternate audio tracks, video, subtitles, and attachments are not included.
Can I change FLAC settings or trim the audio?+−
No. There are no trimming, stream-selection, bitrate, sample-rate, channel, or quality controls.
Does the preview guarantee the conversion will succeed?+−
No. Browser playback support and host FFmpeg readability are different checks. A file must be readable by FFmpeg for conversion, and playback depends on browser support.