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Excalimate
What it is
Excalimate turns hand-drawn Excalidraw diagrams into keyframe animations. Its built-in editor supports drawing, editing, and connecting diagram elements, while a visual timeline animates opacity, position, scale, rotation, and draw progress. Camera keyframes provide pan, zoom, and rotation with aspect-ratio lock. Exports include MP4, WebM, GIF, SVG, dotLottie, Lottie JSON, PNG, and WebP. The web app is a static single-page application, so editing, rendering, and animation happen in the browser, and no account is required. Excalimate is free and open source under the MIT license, with code published on GitHub; commercial use and scene templates are supported. An MCP server connects it to GitHub Copilot, Cursor, Claude Desktop, Claude Code, and Windsurf. The maker describes 23 MCP tools and 16 specialized AI skills. Shared projects use client-side AES-256-GCM encryption, with keys kept in the URL hash.
For and against
For
- Free and open source under the MIT license
- Animates diagrams with timeline and camera keyframes
- Exports video, image, vector, and Lottie formats
- Works in the browser without an account
- Supports multiple AI clients through MCP
Against
- Encrypted project shares last up to 30 days
- Analytics run after consent through PostHog Cloud EU
- No free trial is listed
- MCP tools and AI skills may change
The verdict
Excalimate offers a broad export set and browser-based animation workflow at no cost. Review sharing retention and experimental AI components if those functions are central to your process.
Who it suits
It suits people creating animated explanations from Excalidraw-style diagrams, including users who want browser editing, varied exports, or AI-client connections. Open-source and commercial users can use it without an account.
Plans and prices
Free
full editor · keyframe animation · 8 export formats · MCP tools
Read 15 Oct 2026 · excalimate.com
On the record
- Account requirement
- The maker says Excalimate is available without an account.excalimate.com · read 5 Oct 2026
- AI clients
- The MCP documentation provides configurations for VS Code/GitHub Copilot, Claude Desktop, Claude Code, Cursor, Windsurf and HTTP-compatible clients.github.com · read 15 Oct 2026
- AI integration
- The site advertises 23 MCP tools, live SSE updates and 16 specialized AI skills.excalimate.com · read 15 Oct 2026
- AI tools
- The maker’s site describes 23 MCP tools and 16 specialized AI skills for diagram and animation workflows.excalimate.com · read 5 Oct 2026
- Animation
- Its visual timeline supports opacity, position, scale, rotation, and draw-progress keyframes.excalimate.com · read 5 Oct 2026
- Architecture
- An independent developer profile describes Excalimate as a React 19 and TypeScript SPA deployed with Cloudflare Pages, Workers and R2.toptal.com · read 15 Oct 2026
- Camera animation
- Camera keyframes can pan, zoom and rotate the canvas with aspect-ratio locking.excalimate.com · read 15 Oct 2026
- Camera motion
- Camera keyframes support pan, zoom, and rotation with aspect-ratio lock.excalimate.com · read 5 Oct 2026
- Developer identity
- David Szakacs is listed as the npm publisher of Excalimate packages.npmjs.com · read 15 Oct 2026
- Documentation depth
- The repository includes documentation for architecture, V2 migration, hosted playback, security, sharing, exports, accessibility and MCP operation.github.com · read 15 Oct 2026
- Editor
- The product embeds a full Excalidraw drawing editor for creating, editing and connecting diagram elements.excalimate.com · read 15 Oct 2026
- Encrypted sharing
- Sharing encrypts project data client-side with AES-256-GCM; the key remains in the URL fragment and is not sent to the server.github.com · read 15 Oct 2026
- Export formats
- Exports include MP4, WebM, GIF, SVG, dotLottie, Lottie JSON, PNG and WebP.excalimate.com · read 15 Oct 2026
- Exports
- It exports MP4, WebM, GIF, SVG, dotLottie, Lottie JSON, PNG, and WebP.excalimate.com · read 5 Oct 2026
- Hosted player
- A separate hosted player supports encrypted-share playback and iframe embedding with a restricted postMessage command set.github.com · read 15 Oct 2026
- Independent technical description
- The developer profile describes WebCodecs for MP4/WebM, gif.js for GIF export and programmatic SVG animation.toptal.com · read 15 Oct 2026
- Initial release
- The changelog lists version 0.2.0 as the initial public release on 16 March 2026.github.com · read 15 Oct 2026
- Keyframe properties
- Animation tracks support opacity, position, scale, rotation and draw progress.excalimate.com · read 15 Oct 2026
