MTS Won't Open? Convert to 3G2 Instantly
Fast, instant MTS to 3G2 conversion. No signup required. Just drop your .mts file and get .3g2 in seconds.
Batch Settings
您是否曾遇到这样的情况：辛苦拍摄的MTS高清视频，想在手机上随时分享给家人朋友，或者上传到社交平台，却发现格式不兼容？MTS格式常用于AVCHD摄像机录制，画质虽好，但在移动设备上播放或网络传输时却显得有些“笨重”。此时，将其转换为更轻巧、兼容性更广的3G2格式，无疑是高效便捷的解决方案。3G2作为专为移动设备设计的视频格式，能有效平衡文件大小与视觉体验，让您的珍贵影像在各种场景下都能流畅播放、轻松分享，不再受格式束缚，让精彩瞬间触手可及。
- 微信朋友圈短视频分享
- 手游录屏快速上传
- 旧款功能机视频播放
在中国大陆及华语地区，3G2格式因其小巧和早期移动设备的高兼容性，在非高清分享场景中仍有一定应用，尤其适合对流量和存储空间敏感的用户。
About MTS to 3G2 Conversion
Dealing with a MTS file that won't open on your device? You're not alone — MTS compatibility issues are one of the most common reasons people search for a file converter. MTS (AVCHD) is the format from camcorders recording in high-definition AVCHD.
The fix is simple: convert your MTS to 3G2. 3G2 is a widely used file format. This conversion lets you convert between formats quickly, solving the problem in seconds rather than hours of troubleshooting.
Converting MTS to 3G2 maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your MTS 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 When you need a 3G2 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 MTS to 3G2
- 1
Add your MTS file
Drag and drop your .mts file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick 3G2 output
Select .3g2 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 .3g2 file. For batch jobs, download all at once as a zip.
What Happens When You Convert MTS to 3G2
Your MTS file is decoded and re-encoded as 3G2.
Your MTS file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in 3G2 format
The converted file is ready for download
Format Comparison
MTS
.mts file
| Extension | .mts |
| MIME Type | video/mp2t |
| Category | Video |
3G2
.3g2 file
| Extension | .3g2 |
| MIME Type | video/3gpp2 |
| Category | Video |
Should You Convert MTS to 3G2?
When to Convert
- ✓When you need a 3G2 file
Frequently Asked Questions
Why won't my MTS file open?
MTS files may not open if your device lacks the right codec or application. Converting to 3G2 — a more widely supported format — usually resolves this. 3G2 is a widely used file format.
Is it safe to convert MTS to 3G2 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 MTS to 3G2?
Converting MTS to 3G2 maintains high quality with CocoConvert's optimised encoder settings. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my MTS 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 MTS to 3G2 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.