Convert AVCHD Video (.mts) to iPhone Video (.iphone-video) online for free. Fast, secure video conversion with no watermarks or registration.
Upload your .mts file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mp4 file when it's ready.
iPhone's hardware video pipeline is optimized for H.264 (all models) and H.265 (iPhone 7+) in MP4/MOV containers. MTS/AVCHD files from camcorders use an MPEG-2 Transport Stream container with interlaced 1080i video and AC3 audio — a combination that iPhone cannot play natively. iPhone Video conversion deinterlaces, transcodes, and repackages camcorder footage for iPhone's specific hardware and display characteristics.
The iPhone cannot open .mts files in its native Files, Photos, or TV app. Even VLC on iPhone handles MTS via software decoding, which causes battery drain and thermal throttling. AVCHD's 1080i interlaced video also produces visible combing artifacts on iPhone's progressive OLED or LCD display.
Converting to iPhone Video creates a file that iPhone's dedicated video decode chip processes with minimal power consumption. The MP4 container integrates with AirDrop, iMessage video sharing, the Photos library, and iCloud sync. The conversion also optimizes bitrate for iPhone's screen size — the phone's 6.1-6.7 inch display does not benefit from AVCHD's 24 Mbps bitrate.
FFmpeg deinterlaces and encodes: `-vf yadif -c:v libx264 -profile:v main -level 4.0 -crf 23 -pix_fmt yuv420p -c:a aac -b:a 128k -ar 48000 -ac 2 -movflags +faststart`. For iPhone 7+ with H.265 hardware: `-c:v libx265 -tag:v hvc1 -crf 25`. The `hvc1` tag is required for Apple QuickTime/CoreMedia compatibility with HEVC.
H.264 at CRF 23 from 24 Mbps AVCHD source produces files approximately 80% smaller with no visible quality loss on iPhone's small screen. The deinterlacing step actually improves perceived quality by eliminating combing artifacts that were invisible on the camcorder's viewfinder but prominent on iPhone's high-resolution progressive display.
| Device | MTS | iPhone Video |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
MTS to iPhone Video conversion creates battery-efficient, hardware-decoded video from AVCHD camcorder recordings, fully integrated with iOS's sharing and playback ecosystem.
Безпечна передача
Завантаження зашифровані через HTTPS
Конфіденційність передусім
Файли автоматично видаляються після обробки
Без реєстрації
Почніть конвертацію миттєво
Працює всюди
| No |
8MB free, 50MB Nitro
Будь-який браузер, будь-який пристрій
| Характеристика | MTS | iPhone Video |
|---|---|---|
| Повна назва | AVCHD Video | iPhone Compatible Video |
| Розширення | .mts | .mp4 |
| Найкраще для | HD camcorders | iPhone optimized |