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Keyframe.it
What it is
Keyframe.it Studio brings four game-art tools together in the browser: a 2D skeletal animation editor, a pixel-art character tool, a 3D model creator, and an image-to-pixel-art converter. The animation editor rigs layered art with bones and weighted meshes, then animates it on a timeline. Its listed features include inverse kinematics, springs, motion presets, and AI helpers; exports include Spine bundles, sprite sheets, GIFs, and video. It reads and writes Spine format and supports Spine runtimes 3.8 and 4.2, plus PixiJS v7 and v8. Sprite Puppeteer can auto-rig a sprite, load sheets in up to eight directions, play-test characters, and export for Godot, Unity, GameMaker, or Spine. MeshForge makes textured 3D models from photos or prompts, then supports browser rigging, animation, and sprite-sheet rendering. Generation uses the user's fal.ai API key and costs about $0.10 per model; rigging, exports, and sprite packs are free. PixelForge converts images and sprite sheets into pixel art. The four browser tools are free, require no account, and save work in the current browser.
For and against
For
- Four browser-based game-art tools are included.
- Animation exports include Spine bundles, sprite sheets, GIFs, and video.
- Sprite Puppeteer exports to Godot, Unity, GameMaker, or Spine.
- Rigging, exports, and sprite packs are free.
- Documentation, guides, examples, and FAQs are provided.
Against
- Mesh generation costs about $0.10 per model.
- Mesh generation requires the user's fal.ai API key.
- Clearing browser data deletes saved projects.
- Editing is easiest with a larger screen, mouse, and keyboard.
The verdict
Keyframe.it covers several game-art tasks in one browser-based collection, with useful runtime and engine exports. Keep browser storage in mind, and note that MeshForge model generation has a per-model cost.
Who it suits
It suits game-art creators who want browser tools for animation, sprite preparation, pixel-art conversion, or 3D model workflows. It may also fit developers using the listed game engines and runtimes.
Plans and prices
Free
All four browser tools · no account · no ads
Read 5 Oct 2026 · keyframe.it.com
On the record
- 2D animation
- Keyframe.it rigs layered character art with bones and weighted meshes, animates it on a timeline, and exports Spine bundles, sprite sheets, GIFs, or video.keyframe.it.com · read 5 Oct 2026
- AI agent API
- Each tool exposes a browser scripting API for agents, and MCP clients can connect using the keyframe-mcp package.keyframe.it.com · read 5 Oct 2026
- Animation features
- The 2D editor lists bones, meshes, inverse kinematics, springs, motion presets, and AI helpers.keyframe.it.com · read 5 Oct 2026
- Data handling
- Keyframe.it, Sprite Puppeteer, and PixelForge work in the browser and save projects in the browser; the site says data leaves the computer for specified AI generation, AI features, or shared links.keyframe.it.com · read 5 Oct 2026
- Formats and runtimes
- Keyframe.it reads and writes Spine format and supports Spine runtimes and PixiJS.keyframe.it.com · read 5 Oct 2026
- Integrations
- The site lists Godot, Unity, GameMaker, Phaser, Spine, PixiJS, fal.ai, Anthropic, and MCP clients among its integrations or connected services.keyframe.it.com · read 5 Oct 2026
- MeshForge
- MeshForge turns a photo or prompt into a textured 3D model, rigs and animates it in the browser, and renders sprite sheets.keyframe.it.com · read 5 Oct 2026
- MeshForge cost
- Mesh generation uses the user's fal.ai API key and costs about $0.10 per model; rigging, exports, and sprite packs are free.keyframe.it.com · read 5 Oct 2026
- PixelForge
- PixelForge converts drawings, photos, renders, GIFs, and sprite sheets into pixel art and exports PNG, GIF, and sprite sheets.keyframe.it.com · read 5 Oct 2026
- Product
- Keyframe.it Studio offers four browser tools for game art: 2D skeletal animation, pixel-art characters, 3D model creation, and image-to-pixel-art conversion.keyframe.it.com · read 5 Oct 2026
- Sprite Puppeteer
- Sprite Puppeteer can auto-rig a single sprite, load sprite sheets in up to eight directions, play-test characters, and export for Godot, Unity, GameMaker, or Spine.keyframe.it.com · read 5 Oct 2026
- Storage limit
- Projects are saved in the current browser on the current computer, and clearing the site's browser data deletes saved work.keyframe.it.com · read 5 Oct 2026
- Support and learning
- The site provides documentation, guides, examples, and FAQs for its four tools.keyframe.it.com · read 5 Oct 2026
- Supported browsers
- The site says current Chrome, Edge, Firefox, and Safari on a computer are supported; editing is easiest on a larger screen with a mouse and keyboard.keyframe.it.com · read 5 Oct 2026
