Convert Flash Video (.f4v) to iPhone Video (.iphone-video) online for free. Fast, secure video conversion with no watermarks or registration.
Upload your .f4v 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.
F4V stores H.264 video and AAC audio in Adobe's Flash-compatible MPEG-4 container. The iPhone Video preset creates H.264 1080p MP4 files specifically optimized for Apple's iPhone hardware decoder and smaller display size. This conversion transforms unplayable Flash video into content perfectly suited for iPhone's screen and storage constraints.
iPhones have never supported Flash Player — Apple's refusal to support Flash on iOS was a key factor in Flash's decline. Converting F4V to the iPhone Video preset produces files tailored to iPhone's hardware capabilities: H.264 with the right profile for hardware decoding, bitrate scaled for a 6-inch display, and fast-start enabled for instant playback from the Photos or Files app.
The iPhone Video preset outputs H.264 High Profile Level 4.1 at 1920x1080 with a target bitrate of 4-6 Mbps — optimized for iPhone's 6.1-6.7 inch displays where higher bitrates provide diminishing returns. AAC-LC stereo at 128 kbps / 44.1 kHz handles audio. The moov atom is placed at the beginning of the file for instant playback start. Color space metadata is set to BT.709 for correct rendering on iPhone's P3 wide color gamut displays.
At 4-6 Mbps 1080p, quality is excellent for iPhone-sized screens. The combination of H.264 High Profile and iPhone's sophisticated hardware decoder produces sharp, artifact-free video. Audio at 128 kbps AAC is more than adequate for built-in speakers or AirPods.
| Device | F4V | iPhone Video |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | 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
F4V to iPhone Video conversion is the simplest path from defunct Flash video to polished iPhone playback. The preset automates all codec and quality decisions for optimal results on any recent iPhone model.
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| Funktion | F4V | iPhone Video |
|---|---|---|
| Fulde navn | Flash MP4 Video | iPhone Compatible Video |
| Filendelse | .f4v | .mp4 |
| Bedst til | MPEG-4 based | iPhone optimized |