OGG to FLAC Converter
Convert OGG to FLAC free — no upload, no signup
To convert OGG to FLAC, drop your OGG audio files into the box below and click Convert. Fylo converts with ffmpeg running inside your browser, so nothing is uploaded and there's no signup or watermark. Store OGG audio losslessly as FLAC.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
FLAC is lossless — no bitrate to choose. Sample rate and channels are under Advanced.
Advanced
How to convert OGG to FLAC
Add your OGG files
Drag and drop OGG files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Check the settings
FLAC is lossless, so there's no bitrate to pick. Change sample rate or switch to mono under Advanced if a device needs it.
Convert and download
Click Convert, then download each FLAC file or all of them as one ZIP.
Why convert OGG to FLAC?
Some archive tools and players require FLAC.
What happens when you convert OGG to FLAC?
The decoded Vorbis audio is stored in FLAC, several times larger.
How does Fylo convert OGG to FLAC?
Fylo decodes the Vorbis audio in the OGG with ffmpeg compiled to WebAssembly and encodes it with FLAC lossless compression. Nothing is added back: the FLAC is an exact but larger copy of the decoded OGG (≈ 18–24 MB for a 3-minute song versus ≈ 3.6 MB at 160 kbps). The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between OGG and FLAC?
Ogg is an open container from the Xiph.Org Foundation; Vorbis, the audio codec most .ogg files use, reached version 1.0 in 2002. Vorbis was created as a free, unpatented alternative to MP3 and sounds better at the same bitrate.
FLAC (Free Lossless Audio Codec) was released in 2001 and later maintained by the Xiph.Org Foundation. It compresses PCM audio like a ZIP file compresses data: nothing is thrown away, so a FLAC decodes to exactly the same samples as the source WAV, typically at 50–70% of the size.
Learn more: OGG format guide · FLAC format guide
| Property | OGG | FLAC |
|---|---|---|
| Compression | Lossy (Vorbis) | Lossless |
| Typical bitrate | 96–320 kbps | ≈ 700–1,100 kbps |
| 3-minute song | ≈ 3.6 MB at 160 kbps | ≈ 18–24 MB |
| Tags and cover art | Yes (Vorbis comments) | Yes (with cover art) |
| Compatibility | Android, Chrome, Firefox, games; limited on Apple | Android, Windows 10+, macOS, most players and hi-fi gear |
| Best for | Games, open-source projects, web audio | Archiving music without quality loss |
| Introduced | 2002 | 2001 |
Frequently asked questions
Does converting OGG to FLAC improve quality?
No. OGG is lossy, so detail removed during its compression can't be restored. The FLAC is a lossless copy of what the OGG sounds like — bigger, but not better.
Why convert then?
Only when software requires FLAC input.
Is my OGG file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your OGG file is read directly from your device and never sent anywhere.
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