Convert WebM Video (.webm) to Ogg Video (.ogv) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .webm file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .ogv file when it's ready.
WebM and OGV represent two generations of open-source web video. WebM uses VP8/VP9/AV1 video with Vorbis/Opus audio, while OGV uses the older Theora video codec with Vorbis audio. Both are royalty-free and open-source, but WebM is the modern successor with dramatically better compression.
Converting from WebM to OGV is unusual since OGV is the older, less efficient format. The primary reason is platform requirements — some systems (notably older Wikimedia Commons workflows) specifically require OGV format. Academic and archival platforms built around the original HTML5 open-source video standard may also mandate OGV.
For any other purpose, WebM should be preferred over OGV.
FFmpeg decodes VP8/VP9 video and Opus/Vorbis audio from WebM, then re-encodes to Theora video using libtheora and Vorbis audio using libvorbis in the OGG container. Theora quality is controlled by -q:v (0-10). If the WebM contains Vorbis audio, the audio stream can be copied directly while only re-encoding the video.
Theora is significantly less efficient than VP9 — the OGV output will be either larger at comparable quality or lower quality at comparable file size. Expect files 40-70% larger than the WebM source at similar visual quality. This is a deliberate tradeoff for open format compliance.
| Device | WebM | OGV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Native | Partial |
| Linux | Partial | Partial |
| Web Browser | Native |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
WebM to OGV is a backward conversion for specific platform requirements. For all other purposes, WebM is the preferred open format.
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ใช้ได้ทุกที่
| No |
ทุกเบราว์เซอร์ ทุกอุปกรณ์
| ฟีเจอร์ | WebM | OGV |
|---|---|---|
| ชื่อเต็ม | WebM Video | Ogg Video |
| นามสกุล | .webm | .ogv |
| เหมาะที่สุดสำหรับ | Web optimized | Open source |