Convert MPEG Transport Stream (.ts) to WebM Video (.webm) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .ts 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.
MPEG Transport Stream is the backbone of broadcast television, while WebM is Google's open, royalty-free video format designed specifically for the web. Converting TS to WebM transcodes broadcast content from MPEG-2 or H.264 into VP9 video and Opus audio — the codec combination that powers YouTube, Wikipedia video, and most modern web video players.
WebM with VP9 delivers excellent compression efficiency — roughly 30-50% better than H.264 at the same visual quality — making it ideal for web hosting where bandwidth costs and page load times matter. It plays natively in Chrome, Firefox, Edge, and Opera without any plugins. Google prioritizes WebM in YouTube's encoding pipeline, demonstrating its suitability for web video.
The converter decodes the TS broadcast stream and re-encodes using VP9 (or VP8 for faster encoding) with the libvpx encoder. VP9 uses superblocks up to 64x64, adaptive loop filtering, and 10 reference frames for superior compression. Audio is transcoded to Opus (or Vorbis) using libopus with VBR targeting 128 kbps for music or 64 kbps for speech. The WebM container (a subset of Matroska) uses EBML framing with CUE points for seeking.
VP9 at CRF 31-35 produces visually excellent 1080p output that rivals H.264 at 40-50% higher bitrate. For 720p web video, CRF 33-37 looks transparent. Opus audio at 128 kbps is audibly transparent for music and excellent at 64 kbps for speech. The combination delivers web-ready video with outstanding quality-to-size ratio.
| Device | TS | 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
8MB free, 50MB Nitro
TS to WebM conversion produces web-optimized, royalty-free video that plays natively in modern browsers with excellent compression efficiency — ideal for publishing broadcast content online.
安全な転送
HTTPS暗号化アップロード
プライバシー優先
処理後にファイルを自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
| Native |
| 特徴 | TS | WebM |
|---|---|---|
| 正式名称 | MPEG Transport Stream | WebM Video |
| 拡張子 | .ts | .webm |
| 最適な用途 | Broadcasting | Web optimized |