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Video to Prompt
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Video to Prompt turns any video into a detailed AI video prompt — free, in your browser. Upload a video and the tool reads real data from the file itself: duration, resolution, frame rate (where the browser can measure it) and the dominant colours of frames taken at intervals, shown as thumbnails. Then you add your choices — subject, action, camera movement, style and mood — and it builds a structured prompt ready for Runway, Kling, Veo or Sora. This page is honest: without a key it builds the prompt from the video's real frames and data plus your choices — that is genuinely useful, but it is not the AI “watching” the video. True AI vision (a real AI description of a frame) is available as an optional upgrade with your own vision API key — clearly labelled, never required.
How to use Video to Prompt
- Upload any video — the duration and resolution appear right away.
- Press “Extract Frames” to grab thumbnails across the video with their dominant colours.
- Fill in the guided form: subject, action, camera movement, style and mood.
- Press “Build Video Prompt” and copy the structured prompt into Runway, Kling, Veo or Sora. Optional: press “AI Describe Frame” with your own vision key.
Worked example
Example: upload a 12-second clip of a street market (1280×720, 30 fps, dominant colours warm red and teal). Subject “a busy night market”, action “vendors serving food, steam rising”, camera “slow dolly in”, style Cinematic, mood Lively. The tool builds: “Cinematic slow dolly-in shot of a busy night market, vendors serving food, steam rising, warm red and teal palette, lively mood, realistic motion, 12 seconds, 16:9” — ready to paste into your video AI tool.
Tips for better results
- Describe the action in one sentence — what moves, and how.
- Camera movement words (dolly in, pan, drone shot) change the result more than any other word.
- Use the frame colours in your prompt so the new video matches the original look.
- Keep it under 60 words — video tools follow short, clear prompts best.
Frequently asked questions about Video to Prompt
Is video to prompt free?
Yes, completely free — frame extraction, analysis and prompt building run in your browser, no API key needed. Only the optional AI Describe (true vision) needs your own key.
Does the tool really watch my video?
Not without a key. Without a key it reads real data — duration, resolution, frame colours — and combines it with your choices. True AI vision (a vision model describing a frame) needs a vision API key, and the page says so plainly.
Is my video uploaded anywhere?
No. Your video never leaves your device. Frames and analysis happen locally in your browser. With a vision key, one frame is sent only to the provider you choose.
Which video tools can I paste the prompt into?
Any of them: Runway, Kling, Veo, Sora, Pika and Luma. The AI Video Generator on this site builds the same kind of prompt from scratch.
How is the frame rate measured?
With the browser's video-frame callback where supported (Chrome/Edge). If the browser cannot measure it, the page says “unknown” instead of guessing.
Can I use it to copy a video I like?
Use it to learn the style, colours and camera work — then make your own original video. Do not copy someone else's video outright.
Meet the Founder — Anees Ur RehmanHe built AI Creator Studio so every creator can use powerful AI tools 100% free. More about Anees →