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Supports: FLAC
If you are looking at a folder of FLAC files and wondering whether OGG is worth it, the short answer is: convert to OGG when you want files that are roughly 70-80% smaller for streaming, web players, or game audio, and keep the FLAC originals when you are archiving a master library. FLAC is lossless — a bit-for-bit reconstruction of the source. OGG (Ogg Vorbis) is a lossy codec, so this conversion discards data your ears are unlikely to notice in exchange for a much smaller file. Both formats are maintained by the Xiph.Org Foundation and are fully open and royalty-free.
| Property | FLAC | OGG (Vorbis) |
|---|---|---|
| Compression | Lossless | Lossy |
| Maintainer | Xiph.Org Foundation | Xiph.Org Foundation |
| Specification | RFC 9639 (December 2024) | Ogg container + Vorbis I codec |
| Typical 4-min track | ~25-35 MB | ~5-7 MB at quality ~6 |
| Bit-exact to source | Yes | No (transparent at higher bitrates) |
| Best bitrate for music | n/a (lossless) | ~192 kbps transparent for most listeners |
| License | Open, royalty-free | Open, patent- and royalty-free |
| Native Apple/iOS playback | No | No |
| Best for | Archiving, mastering, editing source | Streaming, web, game audio, Linux/Android |
Some detail is discarded — OGG Vorbis is a lossy codec, so it cannot reproduce the source bit-for-bit the way FLAC does. In practice the loss is hard to hear at higher settings: Vorbis is considered transparent for most listeners around 192 kbps, and at 256-320 kbps it is virtually indistinguishable from the lossless source on typical playback systems. If you need a perfect copy, keep the FLAC.
Expect roughly a 70-80% reduction. A 4-minute CD-quality track that lands around 25-35 MB as FLAC typically comes out near 5-7 MB as OGG Vorbis at a quality-6 setting. The exact figure depends on the bitrate or quality preset you choose and how complex the music is.
Almost always for music. Ogg is a Xiph.Org container, and a .ogg file most commonly carries Vorbis audio — which is what this converter outputs by default. The same container can also hold Opus or FLAC streams, so if a specific player rejects your file, confirm it expects Vorbis. For the Opus codec specifically, use our FLAC to Opus converter instead.
Not natively. Apple's Music app and iOS do not support Ogg Vorbis out of the box, so an OGG file will not import or play without a third-party player. If your target is the Apple ecosystem, convert to a format it supports such as MP3 or AAC rather than OGG.
At the same bitrate, Vorbis generally holds detail as well as or slightly better than MP3, and it is patent- and royalty-free. MP3 wins on universal device support, including Apple hardware. If you want the broadly compatible option instead, our OGG to MP3 converter covers the reverse step, and you can also convert FLAC straight to MP3.
In our testing, a Quality Preset around the middle of the range (roughly 128-160 kbps Vorbis) is a common sweet spot for game sound effects and short web clips where size matters more than archival fidelity, while music intended for careful listening sounds noticeably cleaner at 192 kbps or higher. Use Variable Bitrate if you want quality to scale with the complexity of each track. If you only want a smaller file without going lossy, our audio compressor can target a specific output size across formats instead.
Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.