Source: https://seerepo.com/compare/backnotprop/plannotator/vs/THU-MAIC/OpenMAIC Markdown source: https://seerepo.com/compare/backnotprop/plannotator/vs/THU-MAIC/OpenMAIC.md Description: plannotator and OpenMAIC share 17 technologies: React, Anthropic, Tailwind CSS, Pi, sonner, Lucide, Base UI, motion, shiki, uqr, Zod, @joplin/turndown-plugin-gfm, parse5, turndown, class-variance-authority, tailwind-merge, and katex. Both are written in TypeScript. # plannotator vs OpenMAIC plannotator and OpenMAIC share 17 technologies: React, Anthropic, Tailwind CSS, Pi, sonner, Lucide, Base UI, motion, shiki, uqr, Zod, @joplin/turndown-plugin-gfm, parse5, turndown, class-variance-authority, tailwind-merge, and katex. Both are written in TypeScript. - [backnotprop/plannotator](https://seerepo.com/r/backnotprop/plannotator): The workspace to stay in the loop and on top of agents - shape, decide, plan, annotate, review code, share with team, and send all feedback to agents with one click. - [THU-MAIC/OpenMAIC](https://seerepo.com/r/THU-MAIC/OpenMAIC): Open Multi-Agent Interactive Classroom — Get an immersive, multi-agent learning experience in just one click ## What they share and what sets them apart - In common: React, Anthropic, Tailwind CSS, Pi, sonner, Lucide, Base UI, motion, shiki, uqr, Zod, @joplin/turndown-plugin-gfm, parse5, turndown, class-variance-authority, tailwind-merge, katex - Only in plannotator: Vite, MCP, @opencode-ai/plugin, @earendil-works/pi-tui, @viz-js/viz, Mermaid, @agentclientprotocol/sdk, dompurify, marked, @opencode-ai/sdk, dockview-react, Drizzle, yaml, CodeMirror, perfect-freehand, TanStack - Only in OpenMAIC: Next.js, Postgres, dexie, @aws-sdk/s3-request-presigner, OpenAI, AWS S3, Hono, PostCSS, postcss-value-parser, @fontsource-variable/inter, fontsource, geist, next-themes, Radix UI, ProseMirror, xyflow, echarts, use-stick-to-bottom, cmdk, prosemirror-inputrules, react-resizable-panels, animate.css, embla-carousel-react, monaco-editor, prosemirror-dropcursor, prosemirror-gapcursor, react-colorful, xterm, @aws-sdk/credential-providers, ai, e2b, ai-sdk, partial-json, tokenlens, streamdown, js-yaml, sharp, linkedom, parse-srcset, htmlparser2, sanitize-html, @mozilla/readability, docx, mdast-util-from-markdown, micromark-extension-math, pdf-lib, remark-cjk-friendly, svg-pathdata, temml, unpdf, typebox, entities, @xmldom/xmldom, cfb, jpegxr, mathml-to-latex, omml2mathml, pdfjs-dist, pptxtojson, utif, html-to-image, html2canvas-pro, @hyperframes/producer, @hono/node-server ## Side by side | | plannotator | OpenMAIC | |---|---|---| | Size | 1,355,493 lines written, 2,485 code files | 903,423 lines written, 2,113 code files | | Who writes it | 20.8% of its commits signed by AI. With Claude Code, Devin, GitHub Copilot, and Codex | 38% of its commits signed by AI. With Claude Code, Cursor, Codex, and GitHub Copilot | | Activity | Last push November 13, 2026, 5,551 commits, 10,410 stars | Last push November 13, 2026, 880 commits, 43,461 stars | | Tests | 2,651 test files. 65.3% of its code files have a test that imports them | 1,627 test files. 62.3% of its code files have a test that imports them | - Size: Lines written by people and agents, without generated ones; code files, without tests. - Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch. - Activity: From GitHub and its history, on the day SeeRepo read it. - Tests: The files that test the code, and the share of code files a test imports. ## Frequently asked questions ### Which is bigger, plannotator or OpenMAIC? plannotator, with 1,355,493 lines written; OpenMAIC has 903,423. The proof: [backnotprop/plannotator's code at commit 6cd0324](https://github.com/backnotprop/plannotator/tree/6cd0324f651d8cdc0effc6c1866a694198942bb5) ### Which has more GitHub stars, plannotator or OpenMAIC? OpenMAIC, with 43,461 stars; plannotator has 10,410. The proof: [THU-MAIC/OpenMAIC on GitHub](https://github.com/THU-MAIC/OpenMAIC) ### Which has more tests, plannotator or OpenMAIC? plannotator, with 2,651 test files; OpenMAIC has 1,627. The proof: [backnotprop/plannotator's code at commit 6cd0324](https://github.com/backnotprop/plannotator/tree/6cd0324f651d8cdc0effc6c1866a694198942bb5) ### Which was updated more recently, plannotator or OpenMAIC? Both got their last push on November 13, 2026. The proof: [backnotprop/plannotator's commits on GitHub](https://github.com/backnotprop/plannotator/commits) ### Which has more commits signed by AI, plannotator or OpenMAIC? OpenMAIC: an AI signed 38% of its commits, with Claude Code, Cursor, Codex, and GitHub Copilot; in plannotator, 20.8%. The proof: [the commits each tool signed in THU-MAIC/OpenMAIC](https://seerepo.com/r/THU-MAIC/OpenMAIC/ai) ## Sources - backnotprop/plannotator: Read on November 13, 2026, at commit 6cd0324 (https://github.com/backnotprop/plannotator/tree/6cd0324f651d8cdc0effc6c1866a694198942bb5) - THU-MAIC/OpenMAIC: Read on November 13, 2026, at commit 65d5ac4 (https://github.com/THU-MAIC/OpenMAIC/tree/65d5ac408301a2916d1d7e81b037855760a286ab) ## What is your repo built with? Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.