Convert MPEG-4 Video (Apple) (.m4v) to iPhone Video (.iphone-video) online for free. Fast, secure video conversion with no watermarks or registration.
Upload your .m4v 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.
M4V files are Apple's MPEG-4 video container, commonly used for iTunes Store purchases and Apple TV content. While iPhones can play DRM-free M4V files natively, the encoding parameters may not be optimized for iPhone hardware. The iPhone Video preset creates an H.264 1080p MP4 specifically tuned for iPhone's A-series and M-series chips, with encoding profiles, bitrates, and buffer settings that maximize battery life while maintaining excellent visual quality on the iPhone's OLED or Liquid Retina display.
iPhones decode video using dedicated hardware blocks in the A-series chip. Certain H.264 encoding parameters (like excessive reference frames or very high profiles) force software decoding, which drains the battery significantly faster. The iPhone Video preset ensures 100% hardware-accelerated decoding with parameters verified against Apple's hardware decoder specifications, giving you the longest possible battery life during video playback.
FFmpeg encodes to H.264 Main Profile Level 4.1 at 1920x1080 with a bitrate of 4-6 Mbps, optimized for the iPhone's hardware video decoder. Audio is AAC-LC at 128 kbps stereo. The output uses faststart atom ordering and a 2-second keyframe interval for instant seeking. The encoding parameters match Apple's VideoToolbox hardware encoder specifications, ensuring the dedicated decoder chip handles playback with minimal CPU involvement.
At 1080p with 4-6 Mbps, video looks crisp and detailed on iPhone screens from 5.4 to 6.7 inches. The OLED displays on modern iPhones render excellent contrast and color. At typical phone viewing distances (8-14 inches), this bitrate is visually indistinguishable from higher-bitrate encodes.
| Device | M4V | iPhone Video |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Native | Partial |
| iPhone/iPad | Native | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
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
M4V to iPhone Video conversion guarantees optimal playback on any iPhone. The preset matches Apple's hardware decoder specifications exactly, delivering the best combination of visual quality, file size, and battery efficiency.
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| Egenskap | M4V | iPhone Video |
|---|---|---|
| Fullt navn | iTunes Video | iPhone Compatible Video |
| Filendelse | .m4v | .mp4 |
| Best egnet for | Apple ecosystem | iPhone optimized |