Convert Windows TV (.wtv) to WebM Video (.webm) online for free. Fast, secure video conversion with no watermarks or registration.
Upload your .wtv 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 .webm file when it's ready.
WTV (Windows TV) is the Windows Media Center DVR format, storing broadcast TV recordings with MPEG-2 or H.264 video, AC3 or AAC audio, and EPG metadata (program title, description, channel, ratings) in an NTFS-like container. Windows Media Center served as Microsoft's living room media hub from 2007 until its removal from Windows 10. WebM is Google's open, royalty-free multimedia container based on Matroska, combining VP8/VP9/AV1 video with Vorbis or Opus audio for web-optimized delivery.
WebM is the native video format of the modern web — YouTube uses VP9/AV1, and every major browser (Chrome, Firefox, Edge, Safari 16+) plays WebM natively in the HTML5 video element without plugins.
Converting WTV to WebM transforms TV recordings into web-native video that plays directly in browsers and integrates with modern web platforms. WebM with VP9 video and Opus audio delivers excellent quality at low bitrates, making it ideal for web hosting, self-hosted video platforms, and bandwidth-efficient streaming. This is the modern open-source alternative to MP4 for web delivery.
For users who want to share or host their Windows Media Center TV recordings on the web — personal blogs, educational sites, internal wikis — WebM is the most efficient web-native format. VP9 typically achieves 20-30% better compression than H.264 at equivalent visual quality.
FFmpeg demuxes the WTV container and re-encodes to VP9 video with Opus audio in the WebM container. VP9 encoding uses CRF mode (typical CRF 30-35 for web delivery) with multi-threaded tile encoding for reasonable processing speed. Opus audio is encoded at 128-192 kbps. Interlaced WTV sources (1080i, 480i) are deinterlaced with yadif. Two-pass encoding is available for optimal quality at a target bitrate. EPG metadata is discarded.
VP9 in WebM delivers excellent visual quality — equivalent to H.264 at 20-30% lower bitrates. For standard definition WTV recordings, VP9 at CRF 32 produces clean video at compact file sizes. HD content (720p/1080i) looks great at CRF 30-33. The main trade-off is encoding speed — VP9 encodes 3-5x slower than H.264 but produces smaller files. Opus audio at 128 kbps is transparent for broadcast content.
| Device | WTV | WebM |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
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
WTV to WebM conversion produces web-native video from Windows Media Center recordings, leveraging VP9's superior compression for efficient web hosting and universal browser playback.
Saker overforing
HTTPS-krypterade uppladdningar
Integritet forst
Filer raderas automatiskt efter bearbetning
Ingen registrering
Borja konvertera direkt
Fungerar overallt
| Native |
8MB free, 50MB Nitro
Valfri webblasare, valfri enhet
| Funktion | WTV | WebM |
|---|---|---|
| Fullstandigt namn | Windows TV | WebM Video |
| Filandelse | .wtv | .webm |
| Bast for | Windows Media Center | Web optimized |