HEVC Won't Open? Convert to MTS Instantly
Fast, instant HEVC to MTS conversion. No signup required. Just drop your .hevc file and get .mts in seconds.
Batch Settings
せっかく撮りためた高画質なHEVC（H.265）動画も、編集ソフトや再生機器との相性で、思わぬ手間がかかることがありますよね。特に、家庭用ビデオカメラで広く採用されているMTS形式への変換は、スムーズなワークフローを求めるクリエイターの方々にとって、避けて通れない課題かもしれません。本ページでは、HEVCファイルをMTS形式へ、品質を損なうことなく変換するための最適なソリューションをご提案します。大切な映像資産を、編集・再生環境に合わせて柔軟に活用できるよう、当社の変換ツールが皆様の創作活動を力強くサポートいたします。煩雑な設定は不要、直感的な操作で、どなたでも手軽に高品位な変換を実現できます。映像表現の可能性を広げる一助となれば幸いです。
- ビデオカメラでの再利用
- 旧式編集ソフトでの作業
- 業務用映像機器への出力
日本の放送業界や業務用ビデオ機器では、MTS（AVCHD）形式が依然として広く使われており、HEVCとの互換性確保は現場での効率化に直結します。特にフォントの美しさや縦書き表示を重視する映像作品において、変換後の画質劣化は致命的となるため、高品質な変換が求められます。
About HEVC to MTS Conversion
Dealing with a HEVC file that won't open on your device? You're not alone — HEVC compatibility issues are one of the most common reasons people search for a file converter. HEVC is a widely used file format.
The fix is simple: convert your HEVC to MTS. MTS (AVCHD) is the format from camcorders recording in high-definition AVCHD. This conversion lets you convert between formats quickly, solving the problem in seconds rather than hours of troubleshooting.
Converting HEVC to MTS maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your HEVC 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 MTS 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 HEVC to MTS
- 1
Add your HEVC file
Drag and drop your .hevc file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick MTS output
Select .mts 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 .mts file. For batch jobs, download all at once as a zip.
What Happens When You Convert HEVC to MTS
Your HEVC file is decoded and re-encoded as MTS.
Your HEVC file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in MTS format
The converted file is ready for download
Format Comparison
HEVC
.hevc file
| Extension | .hevc |
| MIME Type | video/hevc |
| Category | Video |
MTS
.mts file
| Extension | .mts |
| MIME Type | video/mp2t |
| Category | Video |
Should You Convert HEVC to MTS?
When to Convert
- ✓When you need a MTS file
Frequently Asked Questions
Why won't my HEVC file open?
HEVC files may not open if your device lacks the right codec or application. Converting to MTS — a more widely supported format — usually resolves this. MTS (AVCHD) is the format from camcorders recording in high-definition AVCHD.
Is it safe to convert HEVC to MTS 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 HEVC to MTS?
Converting HEVC to MTS 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 HEVC 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 HEVC to MTS 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.