Animation — write what happens, read what it understood
Open Animation →You write a paragraph. Everything below it fills itself in — a timeline of clips with frame ranges, a skeleton fitted to your drawing, baked channel curves, and checks that say whether the motion holds together — and it shows you what it read out of your words, so a misreading is visible rather than mysterious. The contact-sheet preview is free, and so is the render.
Before you start: Animation is a page rather than an app on the rail: go to /animation directly. You need to be signed in, but there is no plan gate.
What Animation makes
A motion document: not a single video file but a set of related artefacts, of which the video is one. Eleven artifact kinds are available, and Render & export packages the ones you ticked and downloads them straight from the page.
- The timeline — clips with their frame ranges, in order.
- The skeleton — a rig fitted to your drawing, or to the archetype you picked.
- The curves — baked channel data, the thing an animation program can actually read.
- The checks — computed, not opinions; they pass or fail on arithmetic.
- The preview — a contact sheet, free, as many times as you like.
There is no project store. The .anim project file is the only way to keep a document, so download it if you want to come back to this work.
Walkthrough: paragraph to package
Write the brief under "What should happen"
Up to 4,000 characters, in plain sentences. This is the only required input, and every control beneath it is pre-filled from what you wrote — including a readout of what it understood, which is the field worth checking first.
Override anything it got wrong
Look, Character, Seconds, Frames per second, Camera and Loose parts are all yours to change. Leaving them alone is a real choice: they already say what the brief implied.
Give it a character, if you have one
Draw it is labelled "Spends a credit" because it generates the drawing. If you already have artwork, drop front, side and back PNGs instead and it costs nothing.
Press Preview
A contact sheet of the motion, free. Iterate here — change the brief, change the seconds, preview again — until the shape is right.
Optionally, review the plan with AI
Review the plan with AI is also labelled "Spends a credit". It is advisory only: it can never change the verdict of the checks and it can never block a render. It is a second opinion, not a gate.
Choose File, Size and Sound, and tick Also export
Three video formats, five sizes. Also export is where you pick which of the eleven artifacts come down with the video.
Press Render & export
The package is built and downloaded from the page. Free — the whole render path is arithmetic.
Options
- Styles — four: 2D cel (the default), 2D vector, 3D, and 3D with a 2D pass.
- Character archetypes — eight.
- Actions — thirty-one.
- Camera moves — six.
- Physics modes — four, for how loose parts behave.
- Video formats — three; sizes — five.
- Artifacts — eleven kinds, ticked individually under Also export.
Limits
- 4,000 characters for the brief.
- 0.2 to 60 seconds per clip. The form will let you type up to 120; the server clamps to 60, so 60 is the real answer.
- 8 to 60 frames per second.
- 7,200 frames in total across the timeline. Clips past the cap are trimmed rather than silently dropped.
- No session and no project store: download the .anim file or lose the document when you leave.
What it costs
Almost nothing, and for a structural reason: the plan, the preview, the checks, the render and the export are all arithmetic over your brief, so there is nothing to charge for.
- Free — planning, preview, checks, render, export.
- Spends a credit — Draw it, because it generates artwork.
- Spends a credit — Review the plan with AI, because it calls a model.
Both paid buttons say "Spends a credit" on their face. Nothing else on the page does.
Frequently asked questions
Why can't I find Animation on the left rail?
It is a page, not a rail app — open /animation directly. It is also the one surface in this set with no plan gate: any signed-in account can use it.
Does rendering cost credits?
No. Planning, previewing, the checks, the render and the export are all free. Only Draw it and Review the plan with AI spend a credit, and both say so on the button.
Do I have to fill in all those dropdowns?
No — they are already filled in from your brief, and the page shows what it read. Change one when the readout is wrong; otherwise the defaults are the brief's own answer.
Can the AI review stop my render?
No, by design. It is advisory: it cannot change a check's verdict and it cannot gate a render. The checks are computed and they are the only thing that judges the motion.
I typed 90 seconds and got less. Why?
The form accepts up to 120 seconds per clip but the server clamps to 60, and the whole timeline is capped at 7,200 frames. Split a long piece into clips rather than stretching one.
How do I come back to this tomorrow?
Download the .anim project file. There is no server-side project store, so that file is the document.