Online OGG Vorbis Compressor
Shrink OGG files while preserving open-source audio quality
OGG Vorbis is a free, open-source audio codec that delivers excellent quality at low bitrates — often better than MP3 at the same file size. It is the default voice format on Discord, widely used in games and web apps, and natively supported by Firefox, Chrome, and Telegram. Our OGG compressor lets you reduce file size using Vorbis quality levels (Q0–Q10) or fixed bitrate, with real-time size estimation and A/B comparison. All processing happens in your browser.
What You Can Do
- Compress OGG files by 40–85% using Vorbis quality scaling (Q0–Q10)
- Switch between quality mode and fixed bitrate for predictable size
- Platform presets for Discord (25 MB), Telegram (2 GB), WhatsApp (16 MB)
- Downsample rate and convert stereo to mono for additional savings
- Compare original and compressed audio with A/B player
- Browser-based processing — your OGG files never leave your device
How to Compress an OGG File
- Upload your OGG or OGA file by dragging it to the upload area or clicking browse
- Select compression mode: Vorbis quality for best quality-per-byte, or fixed bitrate for exact size control
- Fine-tune sample rate and channel settings if needed
- Click Compress and download your smaller OGG file
Frequently Asked Questions
What is the OGG Vorbis format?
OGG is a free, open-source container format, and Vorbis is the lossy audio codec inside it. Unlike MP3, which was encumbered by patents until 2017, OGG Vorbis has always been royalty-free. It is used by Discord for voice chat, in thousands of video games, and supported natively by all modern browsers except Safari.
How does Vorbis quality (Q0–Q10) work?
Vorbis uses a variable-bitrate quality scale from 0 to 10. Q0 produces the smallest files (~64 kbps), Q5 is the standard setting (~160 kbps), and Q10 reaches maximum quality (~500 kbps). Unlike fixed bitrate, quality mode allocates more bits to complex passages and fewer to silence, giving better perceived quality per byte.
Is OGG Vorbis better than MP3?
At the same bitrate, Vorbis generally produces better-sounding audio than MP3, especially at lower bitrates (96–128 kbps). Vorbis also supports quality-based VBR natively, does not have the 320 kbps ceiling of MP3, and is completely patent-free.
Can I play compressed OGG files on my phone?
Android supports OGG Vorbis natively. On iOS, OGG playback requires a third-party app like VLC. Most desktop browsers (Chrome, Firefox, Edge) play OGG files without any plugins.
What is the difference between .ogg and .oga?
Both are OGG container files. The .ogg extension is the original catch-all, while .oga was introduced later to specifically indicate audio-only OGG files (as opposed to .ogv for video). Our compressor handles both extensions identically.
