Convert FLAC to OGG
To convert FLAC to OGG, add your .flac file below and press the button: it's processed on your own device and you download the result, with nothing uploaded. It's free, needs no account, and works with files up to 500MB.
About converting FLAC to OGG
FLAC (.flac) files can be converted to OGG entirely in your browser — no software to install, no file upload, and no account required. The conversion runs on a WebAssembly build of ffmpeg directly on your device.
Technical comparison
| FLAC | OGG | |
|---|---|---|
| Category | audio | audio |
| Compression type | Lossless | Lossy |
| Typical file size | Moderate — roughly 50–60% the size of the equivalent WAV | Small — comparable to or smaller than MP3 at a given bitrate |
| Transparency support | N/A (audio) | N/A (audio) |
How to convert FLAC to OGG privately
Every step below runs on a WebAssembly build of ffmpeg inside this browser tab. Your .flac file is never uploaded to a server — there's no network request carrying it anywhere.
Add your FLAC file
Drag and drop, or click to select, a file (.flac). It's read straight from disk into browser memory — no upload step exists.
Convert locally
FreePrivateConvert converts it to OGG using a WebAssembly build of ffmpeg, entirely within this browser tab.
Download the result
Save your converted .ogg file. It only ever existed in this tab's memory — closing the tab without downloading discards it completely.
Convert FLAC to OGG with ffmpeg (command line)
Prefer the terminal? This is the exact ffmpeg command this page runs for you:
ffmpeg -i input.flac -c:a libvorbis -q:a 5 output.ogg- -i input.flac
- Your FLAC file.
- -c:a libvorbis
- Encode the audio as Ogg Vorbis.
- -q:a 5
- Vorbis quality level 5 on a 0-10 scale (5 is roughly 160 kbps).
- output.ogg
- The OGG file to create. ffmpeg picks the container from this extension.
Don't have ffmpeg installed? You don't need it: use the converter at the top of this page. It runs the same conversion on your own device, and your file is never uploaded.
FAQ
- Is my file uploaded anywhere?
- No. Your file is read and processed inside this browser tab and never leaves your device. You can confirm it in your browser's developer tools: the Network tab shows no upload.
- Does converting FLAC to OGG reduce quality?
- Ogg Vorbis is lossy, encoded at quality 5 (around 160 kbit/s) from a lossless source: transparent for most listeners.
- Is there a file size limit?
- Yes: 500MB per file. There's no account and no limit on how many files you convert.
- What's the difference between FLAC and OGG?
- FLAC (Free Lossless Audio Codec) and OGG (Ogg Vorbis) store data differently. FLAC: lossless. OGG: lossy. OGG is an open, patent-free audio container and codec developed by Xiph.Org — a licensing-free alternative to MP3.
- Why convert FLAC to OGG?
- Common uses for OGG: Open-source software and game audio assets; Self-hosted media where licensing matters; Streaming platforms built on open codecs. Completely free of patent licensing fees, unlike MP3's historical licensing requirements.
- What MIME type does a .ogg file use?
- audio/ogg, the standard type for Ogg Vorbis.
- What is the ffmpeg command to convert FLAC to OGG?
- Run: ffmpeg -i input.flac -c:a libvorbis -q:a 5 output.ogg. This is the exact command FreePrivateConvert runs for this conversion, so you can use this page instead of installing ffmpeg: it runs the same conversion inside your browser.
Learn more: What is a FLAC file
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