Layer video, photographs, titles and animated particles. Remove green-screen backgrounds, build cinematic overlays, apply masks and export your composition—all in your browser, without paid AI or uploads.
Composition workspace
Local-first editor
Start with the sample project or upload your own footage. No files leave your device.
Live compositor
Drag layers inside the stage to move them.
Ready
1280 × 7200 layers0 assets
04 · Render and export
Still frames are rendered at your chosen canvas dimensions. Video uses real-time browser encoding and may take the full timeline duration.
Videos are referenced, not embedded, in JSON projects. Reattach video files by name after reopening. Recorded videos are silent; original source audio is not mixed into the export. Transparent PNG exports omit the canvas background. MP4 is available only when supported by your browser.
CREATOR WORKFLOW
From raw footage to layered effects
01 · Build a scene
Import images and short video clips, then arrange and order your layers. Adjust their position, scale, rotation, opacity and blend modes.
02 · Key, mask and animate
Remove solid backgrounds, soften edges, add independent animated particles and customize appearance on the timeline.
03 · Export locally
Export the current frame as PNG or record your timeline in a format supported by the browser. Save JSON projects for future edits.
Processing
Preparing local render…
Composite keyed media and timed effects
Build a layered shot from local media, then adjust chroma keying, masks and crop focus. Add entrance/exit motion, text or deterministic particles and inspect the composite before exporting.
Example workflow
Import a background and a separate foreground image/video, or open a demo.
Adjust the key or mask, crop focus and layer timing; add text or particles where useful.
Preview the composition and alpha behavior, then export an opaque/transparent PNG, silent video or project JSON.
Authored example: Place a green-screen clip over a still background, adjust the chroma key and crop, then add a title layer. Inspect the edge around the subject before exporting a short segment.
Limits and privacy: The workspace supports up to 16 assets, 24 layers and 60 seconds. Video recording is silent and real-time; it does not mix source audio, track subjects or segment objects. Images can be embedded in JSON, but videos must be relinked. One video asset cannot serve as independently timed layers; import a separate copy for each layer.
Common questions
Does the composite keep audio from imported video?
No. Video output is silent, and the workspace does not mix source audio.
Can one video file be used as several independently timed layers?
No. Import a separate copy for each layer that needs independent timing. Video assets must be relinked when reopening a project.
