ContentRoof

Image to explainer video: a picture that explains itself

Most image-to-video tools make a picture move. This one makes it make sense: upload a diagram, an infographic or a photo of something that works, and get a narrated video that explains it, part by part, on the image itself.

Turn my image into an explainer →

Free to try · 11 languages

Diagram to video: a kidney diagram explained on itself · made with ContentRoof

Explained, not just animated

Typical image-to-video tools invent motion: a zoom, a sway, a face that talks. That's nice to look at but teaches nothing. Diagram to video reads your image: it finds the parts, the arrows and the paths, works out how the thing works, writes a narration and films your image with the camera on each part as it's explained. Things flow and move where they would really flow and move.

For creators

Science, engineering, medicine, geography and history channels live on good explanations. One clear diagram gives you a Short that teaches something real, ready in minutes, with captions and a voice in 11 languages. After each video the studio suggests other angles the same image could explain, so one image can become a series.

What it isn't

It doesn't generate new footage or redraw your image, and it won't explain an image with nothing to explain (a meme, a chat screenshot): you'll be told so. For a video on any topic without an image, use the explainer video maker; for science that runs as a real simulation, see the 3D simulations.

How it works

  1. Upload an imageA diagram, an infographic, a cross-section or a photo of a machine.
  2. Ask your questionOr leave it empty for the image's main idea.
  3. Download and postA vertical video with captions, ready for Shorts, TikTok and Reels.

Questions

Is my picture redrawn?

No. The video is made on the exact picture you upload, so every label matches your source. Only the camera, highlights, labels and moving dots are added.

Which languages?

Eleven: English, Arabic, Urdu, Hindi, Spanish, French, Portuguese, German, Italian, Russian and Polish. Narration, captions and labels are in the language you pick, even when the picture is in English.

Can I post the videos?

Yes, the video is yours. Make sure the image is one you may share: your own, openly licensed, or with permission.

Is it free?

You can try it free with a Google sign-in. Students and teachers who sign in with a school email (.edu, .ac.uk, .edu.pk and the like) get ContentRoof Pro free.

Updated 2026-11-14

Make it now. It takes one sentence.

Turn my image into an explainer →

Keep exploring

Diagram to video: your picture, explained part by partUpload a diagram, a page from a textbook, a schematic or a photo of your notes. ContentRoof reads it, finds its parts and makes a narrated video that teaches it on your own picture: the camera goes to each part as it is explained, labels appear, and blood, current, water or air flows along its real paths.Turn your notes into a video you can study fromTake a photo of a page of notes, a figure from your textbook or a slide from your lecture. ContentRoof turns it into a short narrated video that explains it in order, on your own picture, so you can revise on your phone anywhere.Turn a textbook figure into a one-minute lessonPhotograph the figure from this week's chapter. ContentRoof makes a narrated video that teaches it on the figure itself, part by part, with the flows and moving parts shown working. Start the lesson with it, set it as homework or send it to a student who was absent.Anatomy and physiology diagrams, explained in the order they workUpload the heart, the kidney, the nephron, the eye or any physiology figure from your notes. You get a narrated video on that figure: each structure highlighted as it's named, blood and fluids flowing along the real vessels, and the function explained step by step.Schematics and machine drawings, explained on the drawingUpload a circuit diagram, a motor, a pump, an engine cross-section or an exploded view. ContentRoof finds the parts, follows the wires and pipes, and makes a narrated video where current flows, parts turn and each component is explained in the order the machine works.Homework diagram? Watch it explained, togetherWhen your child is stuck on the diagram in their homework and you don't remember the science either, take a photo of it. ContentRoof makes a short video that explains it on that exact picture, in plain words, in your family's language.