For recordings from TV, DVRs and camcorders
TS is the container behind many broadcast captures, IPTV recordings and copied-DVD files. The converter reads .ts and also .m2ts, .mts and .m2t with the same MPEG-TS input setting. We tested .ts only.
TS to MP4 Converter
Add a .ts recording and get an MP4 back. In our test the video was re-encoded to H.264 and one audio track was kept.
To convert ts to mp4, add the .ts file, keep MP4 as the output format and download the result. Here TS means a video file (MPEG transport stream), not TypeScript code. In our test a 1.36 MB TS with two audio tracks became a 1.06 MB mp4 with one audio track, and the video was re-encoded, not copied.
Transfers use HTTPS, and files converted on the free tier are deleted after 24 hours, so the result is not a long-term archive. Quality depends on the source file, so open the MP4 file once before you share it.
FromTSLossy
TS (MPEG transport stream)
A video container, not TypeScript code, defined in ISO/IEC 13818-1 (ITU-T H.222.0) for broadcast. It splits audio and video into fixed 188-byte packets, each starting with a sync byte, so a player can recover after transmission errors. It is used by DVB, ATSC and IPTV recordings, DVR and PVR captures, and HLS segments. One file can hold several programs and audio tracks, usually with MPEG-2 or H.264 video, and many phones and editors will not open it directly.
ToMP4Lossy
MP4 (MPEG-4 Part 14)
The container used by current phones, cameras and streaming services. It was designed for codecs with reordered frames, variable frame rates and playback that starts before the download finishes, three things the older AVI structure handles awkwardly.
A 640 × 360 TS test recording (H.264, 10 s, two audio tracks) made by us, converted on indox.org
- TS, H.264 and two AAC tracksthe main sample, the original file
- 1.36 MB
- MP4 from it78% of the TS, H.264 re-encoded, one AAC track at 96 kb/s
- 1.06 MB
- TS, MPEG-2 video and MP2 audiothe second sample, the original file
- 2.87 MB
- MP4 from it43% of the TS, H.264 video with 128 kb/s MP3 audio
- 1.23 MB
Why use indox to convert TS to MP4?
An MP4 that most players open
The output in our test was H.264 video with AAC audio, the pair that phones, browsers and editing apps read without extra software.
Nothing to install, any device with a browser
The conversion runs on indox servers, so Windows, Mac, Linux and phones all work the same way. You do not need VLC, HandBrake or a command line.
Plain answers about audio and video
This page says what we measured: the picture was re-encoded, the first audio track was kept bit for bit, and the second was dropped.
What happens to your recording
Stays
- The length of the recording, 10 seconds in our test
- The picture size and frame rate (640 by 360 at 25 fps in our test)
- Your original TS file, which is not touched
- The first audio track, copied exactly in our H.264 test
Changes
- The video is re-encoded as H.264
- Audio tracks after the first are dropped
- MPEG-2 video becomes H.264 and MP2 audio becomes MP3 (our MPEG-2 test)
- The file moves from a transport stream into an MP4 with its index at the front
How do I convert TS to MP4 online?
- 1
Add your TS file
Drop the .ts file on the box or choose it from your device. Keep the original, since the MP4 has only one audio track.
- 2
Confirm MP4, then start the conversion
Check that MP4 is the output format, start the conversion and wait for Completed. In our test a 1.4 MB recording took 5.9 seconds from the click to Completed.
- 3
Download the MP4 and play it through
Save the MP4 and watch it from start to end on the device you care about. Check that the audio language is the one you want.
What do I get from indox's TS to MP4 converter?
You hand over a TS recording and take away an MP4 with H.264 video and AAC audio, ready for a phone, an editor or a web page. Nothing is installed on your computer. The page states up front that the picture is re-encoded and that extra audio tracks are dropped.
- An MP4 that plays on phones, in browsers and in editors
- Nothing to install on Windows, Mac, Linux or a phone
- Results measured on test recordings we made
- A plain statement of what changes and what is dropped
What are the limits for TS to MP4?
Size
The upload box shows the live size limit before you add a file. Signing in raises it; a paid plan does not change it.
Formats
TS in, MP4 out. Pick another output on the converter if you need a different format.
Privacy
Files are encrypted in transit over HTTPS and processed on indox infrastructure.
Deletion
Free-tier files are kept for 24 hours after the job finishes, then deleted automatically.
Limits worth knowing
- Only one audio track is kept. If your recording has several languages or commentary, the MP4 will hold the first track only. We did not test choosing another track.
- Subtitle and data streams are not carried over by default stream selection, so teletext or broadcast subtitles will not appear in the MP4. We did not test a file with subtitles.
- The video is re-encoded, so the MP4 is a second generation of lossy compression and cannot look better than the TS.
- In our test on Chromium for Linux, the page rejected a .ts file chosen from disk with the message "Nothing in that drop can be converted." The browser reported the file as a text type instead of video. We did not test other browsers or systems, so your result may differ.
- We saw no size limit, quota or paywall text in four conversions, but we are not stating a limit. Very large recordings are easier to handle on a computer than on a phone.
When the result is not what you expected
| What you see | Why | What to do |
|---|---|---|
| The page says nothing in the drop can be converted | In our test on Chromium for Linux the browser labelled the .ts file as a text type | Try another browser or device; we did not test them |
| The MP4 has the wrong language | Only the first audio track is kept | Pick another track in a tool such as ffmpeg or VLC, or keep the TS for that language |
| No subtitles in the MP4 | Subtitle streams are not carried over by default | Keep the TS if you need the subtitles |
| You only have one short piece of a video | A downloaded HLS segment is only a fragment | Join the segments first, then convert the complete file |
| You need the sound only | The MP4 still holds the picture | Use MP4 to MP3 on the result |
What do the free and paid plans add?
Free
- All converters
- Daily credit refresh
- Email support
Basic
- Access to all features
- AI Extract
- Priority conversions
- Email support
Highest priority
Premium
- Everything in Basic
- Highest priority queue
- Priority support
Pay-As-You-Go
- No subscription
- Credits never expire
- Opt-in auto-refill
- Access to all features
Which conversions are close to TS to MP4?
TS vs MP4: what is the difference?
| Compared on | TS | MP4 |
|---|---|---|
| Container | MPEG transport stream, ISO/IEC 13818-1 | ISO base media file format, ISO/IEC 14496-14 |
| Built for | Broadcast and recording, with fixed 188-byte packets | Storage, download and playback |
| Where it plays | Players that know it; many phones and editors do not | Phones, browsers, TVs and editors |
| Audio tracks | Several programs and tracks in one file | Several are possible, but this converter keeps one |
| Typical codecs | MPEG-2 or H.264 video | H.264 video with AAC audio |
Who can use a TS to MP4 converter?
When to use it
- Playing a recording from a TV recorder on a phone.
- Opening a .ts file from a copied DVD on Windows 11 without installing a player.
- Getting a clip into an editing app or video site that wants MP4.
- Turning one downloaded HLS segment (.ts) into a single MP4 file. One segment is only a short piece of the full video.
Where can I read more about converting files?
Sources
- MPEG transport streamWikipedia
- MPEG-4 File Format, Version 1 (ISO/IEC 14496-14:2003)Library of Congress
- ffmpeg Documentation: stream selection and streamcopyFFmpeg
- Media container formatsMDN Web Docs
Facts checked on November 4, 2026
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TS to MP4 FAQs
How do I convert TS to MP4?
Add the .ts file to the converter in your browser, keep MP4 as the output and download the result. Nothing is installed. In our test a 10-second recording took 5.9 seconds from the click to Completed.
Is TS here the same as TypeScript?
No. TS on this page is a video container, the MPEG transport stream used for broadcast and recordings. TypeScript files are not video and cannot be converted here.
Does converting TS to MP4 lose quality?
A little can be lost, because the video is re-encoded. In our test an H.264 TS was decoded and written again as H.264 at the same size, 640 by 360 and 25 frames per second. It cannot look better than the source, so keep the TS.
Is the video copied or re-encoded?
Re-encoded in both of our tests. The encoder signature in the MP4 differed from the source and the frame count was 251 against 250. The first audio track was copied bit for bit in the H.264 test.
What happens if my TS has two audio tracks?
Only the first is kept. Our test file had an English and a French track, and the MP4 held the English one. Check the language before you delete the original.
What happens to subtitles?
The converter does not carry subtitle streams into the MP4 by default. We did not test a file with subtitles, so check your result.
Why will my .ts file not play on my phone or in Windows?
Many phones and players do not open the transport stream container. The MP4 container with H.264 and AAC is the common choice. An MPEG-2 picture can also be a problem, but in our test an MPEG-2 file came out as H.264.
Can I use VLC, FFmpeg or HandBrake instead?
Yes, they can all do it and they give you control over audio tracks that this page does not. The converter here is for when you want a result in the browser without installing anything.
Is there a file size limit or a quota?
We saw none in four anonymous conversions on 4 November 2026, and we are not promising one. Large files take longer, and a phone connection may be the slowest part.