How to open and convert a TS file
- Open the editor and add your file — .ts, .mts or .m2ts, from a dash cam, camcorder or recorder.
- Wait a moment while it's prepared. VDOAPP reads the transport stream and repackages the video and audio into MP4 form in a background worker. The picture isn't re-compressed at this stage, so nothing is lost.
- Edit as usual. Trim to the moment that matters, blur number plates, add text or a map screenshot as a PiP.
- Export as MP4 at the resolution and frame rate you choose.
Features
- H.264 and HEVC (H.265) video, with AAC audio.
- No install, no upload — conversion happens in your browser.
- Handles big files — dash cam segments of several hundred megabytes are common, and they're read in chunks.
- Everything else in the editor works on converted footage: stabilise, blur faces, highlights, captions.
Why TS files are awkward
A transport stream was designed for broadcasting: it chops video and audio into small 188-byte packets so a receiver can start playing from any point and survive lost data. That's perfect for a dash cam, which may lose power at any moment. But it lacks the index that MP4 files carry, so web browsers — which only play MP4 and WebM natively — can't open it. Repackaging ("remuxing") moves the same compressed video into an MP4 structure with a proper index, which is why it's fast and lossless.
A note on HEVC
Many newer dash cams record HEVC to save space. Whether your browser can decode HEVC depends on your device: Safari on Apple devices and Chrome or Edge on most recent Windows PCs with hardware support can; some older computers can't. If yours can't, VDOAPP shows a clear message instead of a black screen.
Frequently asked questions
Is converting TS to MP4 lossless?
Opening the file is lossless — the video is repackaged, not re-compressed. Exporting your edited video re-encodes it, as every editor must when you add cuts, text or effects.
Can I join several dash cam segments?
Yes. Add all the segments, put them in order on the timeline and export them as one MP4.
Are GPS data and speed overlays kept?
No. Only the video and audio are used. Data some dash cams embed as extra streams is ignored.
Is my footage uploaded?
No. The file is read and converted by your browser on your device.