Theora to MPEG - Online Video Converter
Convert Theora to MPEG online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About Theora to MPEG
Convert Theora to MPEG. Theora is Xiph's open video codec paired with Vorbis audio. MPEG is the ISO program-stream container behind MPEG-1 and MPEG-2 discs. Interlaced sources may need deinterlacing for clean playback..
Why convert Theora to MPEG?
- Smaller files with MPEG lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
Theora vs MPEG
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | No |
| Compression | lossy | lossy |
| Typical use | Theora is Xiph's open video codec paired with Vorbis audio. | MPEG is the ISO program-stream container behind MPEG-1 and MPEG-2 discs. |
When not to convert Theora to MPEG
- Skip MPEG for archival masters: lossy compression discards detail, so keep the Theora original.
- Keep a master copy: repeated exports stack small losses, so archive Theora before batch MPEG shares.
Limits
Starting point: Theora - Theora is Xiph's open video codec paired with Vorbis audio. Ogg multiplexing quirks can offset sync; verify after conversion. Interlaced sources may need deinterlacing for clean playback. Encode MPEG (MPEG-2 / MP2) from Theora at a bitrate near the source, and confirm the audio track before converting.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.