TS to MP4 — Format Comparison & Online Converter
Fast, instant TS to MP4 conversion. No signup required. Just drop your .ts file and get .mp4 in seconds.
Batch Settings
Generation loss — quality may degrade
TS uses lossy compression, and so does MP4. 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. MP4 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
MP4 lossy compression can produce blockiness, banding in gradients, mosquito noise. 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.
お気に入りのテレビ番組を録画したTSファイルが、いざ見ようとしたら再生できない、あるいは友人と共有しようにもファイルサイズが大きすぎて困った経験はありませんか？ 特に日本のテレビ放送では、高画質なTS形式が一般的ですが、この形式は汎用性に欠けるのが玉に瑕です。スマートフォンやタブレットで手軽に視聴したり、編集ソフトで加工したりするには、より互換性の高いMP4形式への変換が不可欠となります。当社の変換ツールは、大切な映像の品質を損なうことなく、迅速かつ簡単にTSファイルをMP4へと変換します。複雑な設定は一切不要。どなたでも直感的にご利用いただけるよう設計されていますので、もう互換性の問題に悩まされることはありません。
- アニメ同人イベントでのプロモーション映像制作
- ビジネス会議録画の社内共有
- 縦書き字幕付き時代劇の個人視聴
日本の地上デジタル放送やBS/CS放送の録画ファイルはTS形式が多いため、他デバイスでの視聴や共有にはMP4変換が非常に有効です。特にフォントの選択肢が豊富なMP4は、縦書きなど日本語特有の表示にも柔軟に対応できます。
About TS to MP4 Conversion
TS (introduced 1995) and MP4 (introduced 2001) are both video formats, but they differ in important ways. TS (MPEG Transport Stream) is used in broadcast television and is segmented for streaming. MP4 (MPEG-4 Part 14) is the universal video container supporting H.264/H.265 codecs — plays on virtually every device.
Full Name: TS uses MPEG Transport Stream, while MP4 uses MPEG-4 Part 14. Compression: TS uses Lossy, while MP4 uses Lossy. Color Depth: TS uses 8-bit, while MP4 uses 8-bit (H.264) or 10-bit (H.265/AV1).
When you convert TS to MP4, the goal is to convert between formats quickly. TS uses lossy compression, and so does MP4. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible. Understanding these technical differences helps you choose the right format for your workflow.
Your TS file is decoded and re-encoded as MP4. The conversion involves 4 steps: (1) your ts file is uploaded and the format is validated, (2) the file content is decoded into its raw representation, (3) the data is re-encoded in mp4 format with optimal settings, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you You need a file that works in web browsers, or when you You need maximum device and software compatibility. For the opposite direction, CocoConvert also supports MP4 to TS conversion.
How to Convert TS to MP4
- 1
Upload .ts file
Select your TS file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .mp4
Set MP4 as the output format. The converter uses optimal settings based on the TS→MP4 conversion profile.
- 3
Convert
The server-side engine decodes your TS file and re-encodes it as MP4. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .mp4 file. Multiple output files can be downloaded together.
What Happens When You Convert TS to MP4
Your TS video is transcoded — video and audio streams are decoded and re-encoded into the MP4 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 MP4-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 MP4 container and the file is saved
TS vs MP4 — Detailed Comparison
| Feature | .TS | .MP4 |
|---|---|---|
| Full Name | MPEG Transport Stream | MPEG-4 Part 14 |
| Compression | Lossy | Lossy |
| Color Depth | 8-bit | 8-bit (H.264) or 10-bit (H.265/AV1) |
| HDR Support | No | Yes |
| Typical File Size | 100–300 MB per minute | 50–200 MB per minute (1080p H.264) |
| Platform Support | Very Wide | Universal |
| Browser Support | Limited | Universal |
| Year Created | 1995 | 2001 |
| Open Standard | Yes | Yes |
Should You Convert TS to MP4?
When to Convert
- ✓You need a file that works in web browsers
- ✓You need maximum device and software compatibility
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 MP4
"I'll convert to MP4 and then back to TS — it'll be the same"
Each lossy conversion cycle permanently degrades quality. Going TS → MP4 → TS will produce a noticeably worse file than the original. Always keep your source file.
Frequently Asked Questions
What is the difference between TS and MP4?
TS (MPEG Transport Stream) is used in broadcast television and is segmented for streaming. MP4 (MPEG-4 Part 14) is the universal video container supporting H.264/H.265 codecs — plays on virtually every device. Full Name: TS uses MPEG Transport Stream, while MP4 uses MPEG-4 Part 14. Compression: TS uses Lossy, while MP4 uses Lossy. Color Depth: TS uses 8-bit, while MP4 uses 8-bit (H.264) or 10-bit (H.265/AV1).
Does TS to MP4 conversion affect quality?
TS uses lossy compression, and so does MP4. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Which format has better compression, TS or MP4?
TS uses lossy compression. MP4 uses lossy compression. The better choice depends on whether you prioritize file size or quality.
How long does TS to MP4 conversion take?
Most conversions finish in seconds. Larger files or complex video content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is TS or MP4 better for long-term storage?
Both formats use lossy compression, so consider keeping your original source file for long-term storage.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.