TS Won't Open? Convert to WEBM Instantly
Fast, instant TS to WEBM conversion. No signup required. Just drop your .ts file and get .webm in seconds.
Batch Settings
Generation loss — quality may degrade
TS uses lossy compression, and so does WEBM. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Some metadata may not survive
Your TS file may contain PSI/SI tables metadata. WEBM has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
What compression artifacts to expect
WEBM lossy compression can produce blockiness (VP8), blurring (VP9/AV1). At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes.
About TS to WEBM Conversion
Dealing with a TS file that won't open on your device? You're not alone — TS compatibility issues are one of the most common reasons people search for a file converter. TS (MPEG Transport Stream) is used in broadcast television and is segmented for streaming.
The fix is simple: convert your TS to WEBM. WebM is Google's open media format based on VP8/VP9/AV1 codecs, optimised for web streaming. This conversion lets you upgrade to a modern format, solving the problem in seconds rather than hours of troubleshooting.
Full Name: TS uses MPEG Transport Stream, while WEBM uses WebM Video. Compression: TS uses Lossy, while WEBM uses Lossy. Color Depth: TS uses 8-bit, while WEBM uses 8–10 bits (VP9). TS uses lossy compression, and so does WEBM. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
CocoConvert processes your TS file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you You need a file that works in web browsers. Common misconception: ""I'll convert to WEBM and then back to TS — it'll be the same"" — in reality, each lossy conversion cycle permanently degrades quality. going ts → webm → ts will produce a noticeably worse file than the original. always keep your source file.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert TS to WEBM
- 1
Add your TS file
Drag and drop your .ts file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick WEBM output
Select .webm as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The video engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .webm file. For batch jobs, download all at once as a zip.
What Happens When You Convert TS to WEBM
Your TS video is transcoded — video and audio streams are decoded and re-encoded into the WEBM container. This is a lossy process that takes time proportional to the video duration.
Your TS file is demuxed — video, audio, and subtitle streams are separated
The video stream is decoded frame-by-frame, then re-encoded with WEBM-compatible codecs (typically H.264 for MP4)
The audio stream is decoded and re-encoded (or copied if the codec is compatible)
Subtitle and chapter data is preserved where the target supports it
Streams are muxed into the WEBM container and the file is saved
TS vs WEBM — Detailed Comparison
| Feature | .TS | .WEBM |
|---|---|---|
| Full Name | MPEG Transport Stream | WebM Video |
| Compression | Lossy | Lossy |
| Color Depth | 8-bit | 8–10 bits (VP9) |
| HDR Support | No | Yes |
| Typical File Size | 100–300 MB per minute | 30–150 MB per minute |
| Platform Support | Very Wide | Limited |
| Browser Support | Limited | modern browsers |
| Year Created | 1995 | 2010 |
| Open Standard | Yes | Yes |
Should You Convert TS to WEBM?
When to Convert
- ✓You need a file that works in web browsers
When NOT to Convert
- ✗You're converting just because the file "seems old" — re-encoding lossy-to-lossy always degrades quality
Common Mistakes When Converting TS to WEBM
"I'll convert to WEBM and then back to TS — it'll be the same"
Each lossy conversion cycle permanently degrades quality. Going TS → WEBM → TS will produce a noticeably worse file than the original. Always keep your source file.
Frequently Asked Questions
Why won't my TS file open?
TS files may not open if your device lacks the right codec or application. Converting to WEBM — a more widely supported format — usually resolves this. WebM is Google's open media format based on VP8/VP9/AV1 codecs, optimised for web streaming.
Is it safe to convert TS to WEBM online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting TS to WEBM?
TS uses lossy compression, and so does WEBM. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my TS file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert TS to WEBM on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.