AI 60 fps Converter
Draws in-between frames to turn 30 fps video into smooth 60 fps.
Drag & drop or click to select a videoTap to select a video
MP4, MOV, WebM · up to 4K and 60 fps · up to 10 minutes (desktop Chrome/Edge, otherwise 60 s)- Length
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- Resolution
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- Frames
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- Audio
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Conversion complete
Open source and model licenses
How to Use
Drag & drop or click to choose an MP4, MOV or WebM video. Up to 4K and 60 fps; up to 10 minutes in desktop Chrome and Edge (60 seconds in other browsers).
The tool makes a few in-between frames on this device and tells you how long the whole video will take. The AI model (about 23MB) downloads on the first run only.
Press Start and an in-between frame is drawn between every pair of frames, doubling the frame rate in a new MP4. The audio is copied without re-encoding.
FAQ
Which AI model is used?
Practical-RIFE 4.25 lite (MIT license). It estimates the motion (optical flow) between two frames and draws the moment halfway between them. The official weights are converted for the browser (ONNX) and match the official PyTorch output at over 97 dB on real video frames.
What frame rate will I get?
Double the input: 30 fps becomes 60, 24 becomes 48, and 25 becomes 50. Videos already above 60 fps are not accepted. The length stays the same.
What happens at scene cuts?
Blending two different scenes would leave ghosting, so scene cuts are detected with the same rule as the official script (frame similarity SSIM below 0.2) and the previous frame is repeated instead. Where the picture does not change (SSIM above 0.996) no frame is computed either.
Can anything look odd?
Fast motion and occlusions (a waving hand, someone walking in front of an object) can look blurry or stretched in the in-between frames, because the AI predicts the motion. Animation often holds each drawing for 2–3 frames, so it may not get as smooth as live action.
How long does it take?
It depends on your GPU. On an M4 Pro MacBook one 1080p in-between frame takes about 0.2 s, so a 10-second 30 fps anime clip took 27 s and a 4-second clip with motion in every frame took 23 s. 4K takes about 0.6 s per frame; a 5-second 4K clip took 1 min 16 s (4K downloads its own 23MB model once). Stretches where the picture does not change are skipped and finish faster. The tool shows an estimate measured on your own device before you start.
Is a GPU (WebGPU) required?
Yes. Even one in-between frame needs a lot of computation, which is impractical on a CPU. A recent desktop Chrome or Edge is recommended; unsupported browsers see a notice right away.
What happens to audio and quality?
The audio data is copied as-is without re-encoding, so quality and sync are unchanged. Original and in-between frames go through the same path and are encoded as H.264 (or HEVC/AV1 if your device lacks it).
