Source: https://seerepo.com/compare/calcom/cal.diy/vs/ParadevAI/Paradev Markdown source: https://seerepo.com/compare/calcom/cal.diy/vs/ParadevAI/Paradev.md Description: cal.diy and Paradev share 29 technologies: Next.js, Postgres, Redis, Sentry, Stripe, React, Vercel, PostHog, @trpc/server, tRPC, Zod, Tailwind CSS, next-themes, class-variance-authority, React Hook Form, sonner, Framer, Radix UI, Lucide, jose, ink, tailwind-merge, entities, dompurify, marked, lexical, cmdk, react-day-picker, and @lexical/markdown. Both are written in TypeScript. # cal.diy vs Paradev cal.diy and Paradev share 29 technologies: Next.js, Postgres, Redis, Sentry, Stripe, React, Vercel, PostHog, @trpc/server, tRPC, Zod, Tailwind CSS, next-themes, class-variance-authority, React Hook Form, sonner, Framer, Radix UI, Lucide, jose, ink, tailwind-merge, entities, dompurify, marked, lexical, cmdk, react-day-picker, and @lexical/markdown. Both are written in TypeScript. - [calcom/cal.diy](https://seerepo.com/r/calcom/cal.diy): Scheduling infrastructure for absolutely everyone. - [ParadevAI/Paradev](https://seerepo.com/r/ParadevAI/Paradev): Paradev is an open-source Codex App and Conductor alternative. Orchestrate an army coding agents in parallel with your own subscriptions. ## What they share and what sets them apart - In common: Next.js, Postgres, Redis, Sentry, Stripe, React, Vercel, PostHog, @trpc/server, tRPC, Zod, Tailwind CSS, next-themes, class-variance-authority, React Hook Form, sonner, Framer, Radix UI, Lucide, jose, ink, tailwind-merge, entities, dompurify, marked, lexical, cmdk, react-day-picker, @lexical/markdown - Only in cal.diy: connect, @nestjs/core, @nestjs/bull, @nest-lab/throttler-storage-redis, bull, Google, NestJS, @next/third-parties, lru-cache, kysely, next-auth, helmet, class-validator, class-transformer, nest-winston, tslog, winston, winston-transport, classnames, TanStack, @formkit/auto-animate, react-select, react-inlinesvg, react-sticky-box, bcryptjs, otplib, markdown-it, node-html-parser, qrcode, react-qr-code, @hookform/resolvers, ink-text-input, ink-select-input, ical.js, Base UI, nodemailer, handlebars, jimp, remove-markdown, sanitize-html, sharp, turndown, Prisma, node-ical, react-easy-crop, react-colorful - Only in Paradev: MCP, GitHub, Linear, Resend, Anthropic, Vite, react-native, Expo, @react-native-async-storage/async-storage, expo-secure-store, expo-modules-core, Hono, SQLite, @aws-sdk/s3-request-presigner, Cloudflare, Drizzle, Better Auth, @paper-design/shaders-react, three, react-icons, gray-matter, next-mdx-remote, remark-gfm, shiki, image-size, react-native-reanimated, react-native-safe-area-context, rn-primitives, expo-image, react-native-screens, @expo/ui, expo-glass-effect, expo-splash-screen, react-native-enriched-markdown, @legendapp/list, react-native-svg, react-native-reorderable-list, react-native-webview, @react-native-masked-view/masked-view, expo-blur, expo-linear-gradient, react-native-gesture-handler, Shopify, @expo/vector-icons, expo-apple-authentication, tokenlens, expo-image-picker, expo-document-picker, expo-image-manipulator, react-native-streamdown, expo-updates, @t3-oss/env-core, @shadcn/react, pele, streamdown, @clack/prompts, react-email, @xterm/headless, @hono/node-server, react-dnd, @xterm/xterm, @azure/msal-node, recharts, embla-carousel-react, input-otp, motion, react-resizable-panels, use-stick-to-bottom, vaul, ai, hast-util-to-jsx-runtime, uqr ## Side by side | | cal.diy | Paradev | |---|---|---| | Size | 554,567 lines written, 4,308 code files | 1,143,152 lines written, 10,284 code files | | Who writes it | 6.3% of its commits signed by AI. With Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot | 14.5% of its commits signed by AI. With Claude Code, Cursor, and CodeRabbit | | Activity | Last push November 3, 2026, 16,069 commits, 49,716 stars | Last push November 7, 2026, 5,419 commits, 16,069 stars | | Tests | 644 test files. 14.8% of its code files have a test that imports them | 1,851 test files. 19.9% 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, cal.diy or Paradev? Paradev, with 1,143,152 lines written; cal.diy has 554,567. The proof: [ParadevAI/Paradev's code at commit dd62f08](https://github.com/ParadevAI/Paradev/tree/dd62f08d8588dd913ce78c78e498cb36798bca47) ### Which has more GitHub stars, cal.diy or Paradev? cal.diy, with 49,716 stars; Paradev has 16,069. The proof: [calcom/cal.diy on GitHub](https://github.com/calcom/cal.diy) ### Which has more tests, cal.diy or Paradev? Paradev, with 1,851 test files; cal.diy has 644. The proof: [ParadevAI/Paradev's code at commit dd62f08](https://github.com/ParadevAI/Paradev/tree/dd62f08d8588dd913ce78c78e498cb36798bca47) ### Which was updated more recently, cal.diy or Paradev? Paradev: its last push was on November 7, 2026, and cal.diy's on November 3, 2026. The proof: [ParadevAI/Paradev's commits on GitHub](https://github.com/ParadevAI/Paradev/commits) ### Which has more commits signed by AI, cal.diy or Paradev? Paradev: an AI signed 14.5% of its commits, with Claude Code, Cursor, and CodeRabbit; in cal.diy, 6.3%. The proof: [the commits each tool signed in ParadevAI/Paradev](https://seerepo.com/r/ParadevAI/Paradev/ai) ## Sources - calcom/cal.diy: Read on November 5, 2026, at commit 2eb48ec (https://github.com/calcom/cal.diy/tree/2eb48eccd8aca8a0c0ffabf28cf92e298b33ecee) - ParadevAI/Paradev: Read on November 7, 2026, at commit dd62f08 (https://github.com/ParadevAI/Paradev/tree/dd62f08d8588dd913ce78c78e498cb36798bca47) ## 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.