Agents built into a real motion editor · Open source

Describe it.
Motionbox animates it.

The first agentic motion-graphics + video editor. Prompt a keyframe animation, get a real editable timeline, then finish it with your team in the browser.

+Style
Launch week.
NEW
0:04

1,000+ templates · an open render engine · zero installs

Motionbox helps creative teams design and ship motion graphics at scale. Kickstart with agents, then take full creative control to fine-tune every keyframe until it's unmistakably yours.
Animation, delegated

From prompt to keyframes in seconds

Agents do the busywork. They return layers, tracks, and easing curves, not a baked video file. You keep full control of every frame.

Agents keyframe it

Ask for the motion you want and get an editable timeline back.

You art-direct it

Tracks, easing curves, and frame-accurate control in the browser.

Your team ships it

One shared file with comments, versions, and your brand kit.

UGC, leveled up

Motion graphics on top of real footage

Lower thirds, animated captions, product callouts, subscribe stingers. Agents place them, you tweak the timing. The UGC energy of a creator, the polish of a studio.

Lower thirdsAnimated captionsSubscribe stingersProduct calloutsOn-brand kit
before.mp4
after.mp4
@maya.builds
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this changed everything
Why not After Effects?

Heavy tools live on one machine

Premiere and After Effects earned their place. But a team shipping social cuts on a deadline wants a shared file, cloud renders, and agents on the boring parts.

Runs in the browser
Cloud renders, not overnight
One file, whole team
Agents on repetitive keyframes
Open source render engine
Priced for teams
Open source

The engine is going open

The render engine behind Motionbox is being open sourced. Self-host it, extend it, or let our cloud be the easy button. Same playbook as PostHog and Postiz.

Need something more powerful today? Wireflow is our AI workflow builder for motion and video at scale.

Start faster

1,000+ templates to remix

Be first in line

We're rebuilding Motionbox around agents right now. Early access goes out in small batches.

Get early access