M2TS to MP4 Converter
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Supports: M2TS
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Need help?How to Convert M2TS to MP4
- Upload Your M2TS File — Click "Choose Files" or drag and drop your M2TS (MPEG-2 Transport Stream) file. Only M2TS files are accepted.
- Choose Video Codec — Under Video Codec, the default is H.264 for MP4 output. Available codecs include H.264, H.265/HEVC (better compression), AV1 (best compression), VP8, VP9, MPEG-4, and others.
- Set Video Quality — Under File Compression, choose from: Quality Preset (Highest through Lowest), Target File Size % (1-100% slider with Smart Scaling), Specific File Size (MB/KB), Constant Bitrate, Variable Bitrate, Constant Quality (CRF), or Constraint Quality (CRF + max bitrate).
- Adjust Resolution (Optional) — Under Video Resolution, keep the original or choose Preset Resolutions (1080p, 720p, 480p, etc.), Fixed Resolutions, Resolution Percentage, or custom Width/Height.
- Trim (Optional) — Under Trim, select "Time Range" and set a Start Time and Duration to extract a specific segment.
- Convert & Download — Click "Convert" and download your MP4 file.
Why Convert M2TS to MP4?
M2TS (MPEG-2 Transport Stream) is the format used by Blu-ray discs, AVCHD camcorders (Sony, Canon, Panasonic), and digital TV recordings. While M2TS preserves excellent video quality, it has limited compatibility — most phones, tablets, web browsers, and social media platforms cannot play M2TS files directly. MP4 is the universal video format supported by every device and platform. Converting M2TS to MP4 makes your Blu-ray rips and camcorder footage playable everywhere while significantly reducing file size.
M2TS vs MP4 Comparison
| Feature | M2TS | MP4 |
|---|---|---|
| Full name | MPEG-2 Transport Stream | MPEG-4 Part 14 |
| Developed by | Blu-ray Disc Association | MPEG |
| Primary use | Blu-ray, AVCHD camcorders | Streaming, mobile, web |
| Video codecs | H.264, MPEG-2, VC-1 | H.264, H.265, AV1, VP9 |
| Audio codecs | Dolby Digital, DTS, LPCM | AAC, MP3, AC3, Opus |
| File size (1 hr HD) | 4-8 GB | 1-3 GB (H.264) |
| Device compatibility | Blu-ray players, PCs | Universal |
| Streaming support | Not optimized | Widely used |
Compression Options for M2TS to MP4
| Method | How It Works | Best For |
|---|---|---|
| Quality Preset | Automatic quality (Highest→Lowest) | Quick conversion without manual tuning |
| Target File Size (%) | Percentage of original size | Predictable size reduction |
| Specific File Size | Enter exact MB target | Meeting upload limits |
| Constant Quality (CRF) | Quality-based encoding | Best quality-to-size ratio |
| Constant Bitrate | Fixed bitrate throughout | Consistent streaming quality |
| Constraint Quality | CRF with max bitrate cap | Streaming with bandwidth limits |
Will converting M2TS to MP4 lose quality?
Some quality loss occurs during re-encoding, but it is minimal with the right settings. Use "Highest" or "Very High" Quality Preset, or Constant Quality (CRF) with a low value (18-23 for H.264) for visually lossless output. The main benefit is a dramatically smaller file — a 6 GB Blu-ray M2TS typically becomes 1-2 GB as MP4 with H.264.
Which video codec should I choose?
H.264 is the default and safest choice — it plays on every device. H.265/HEVC produces ~40% smaller files at the same quality but has less device support. AV1 offers the best compression but is slower to encode. For maximum compatibility, stick with H.264.
Can I convert AVCHD camcorder footage?
Yes. AVCHD camcorders from Sony, Canon, and Panasonic save video as M2TS files. Upload the .m2ts file directly and convert to MP4 for easy editing in iMovie, Premiere Pro, DaVinci Resolve, or sharing on social media.
How do I reduce the file size of a large M2TS file?
Use "Specific file size" under File Compression and enter your target in MB. Alternatively, lower the resolution from 1080p to 720p under Video Resolution, or use H.265 codec instead of H.264 for ~40% smaller files at equivalent quality.
Can I trim the video during conversion?
Yes. Under Trim, select "Time Range" and enter a Start Time and Duration in seconds or HH:MM:SS.sss format. This lets you extract a specific scene from a long Blu-ray rip or camcorder recording without needing separate editing software.