jc.io — tools worth building with
A short, opinionated index of tools worth building with. Curated, no affiliate links.
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Tags: ai, react, ui, design, tools, infra, startups, analytics, messaging, dapp, video
- Aceternity UI — Copy-paste React components with motion already built in. (ui, react)
- Apten — AI SMS assistants for sales and support. YC S24. (ai, startups)
- AwayMail — Away-message handling for email. (tools)
- Beam — Cookie-free, GDPR-compliant analytics with a generous free tier. (analytics)
- Casbu — An email alternative for fast decisions, with message priority and pauseable threads. (messaging)
- CapCut — The short-form editor. Cut, caption, templates — desktop, web, and phone. (video, tools, ai)
- Claude — Anthropic's assistant. Strong at long-context reasoning and code. (ai)
- Clerk — Drop-in authentication and user management for React and Next.js. (react, tools)
- Convex — Full-stack TypeScript backend: database, functions and realtime in one. (react, infra)
- Creatify — AI video ads from a product URL. Avatars, templates, launch to Meta and TikTok. (ai, video, tools)
- Cursor — The AI code editor. (ai, tools)
- ElevenLabs — Realistic text-to-speech and voice cloning across thousands of voices. (ai)
- Etherisc — Open protocol for parametric insurance. (dapp)
- Excalidraw — Collaborative whiteboarding with a hand-drawn feel. (tools, design)
- Figma — Collaborative interface design and prototyping. (design)
- Google Cloud — Managed compute, data and networking. (infra)
- HeroUI — Modern React component library. Formerly NextUI. (ui, react)
- Humata — Ask questions across your own documents. (ai, startups)
- LangChain — Framework and tooling for building LLM applications. (ai)
- Liveblocks — Realtime collaboration primitives: presence, comments, notifications. (react)
- Lukaz — AI workspace for study and work. (ai, startups)
- Mistral — Open-weight models and an agents API. (ai)
- Motion — Production-grade animation for React. Formerly Framer Motion. (ui, react)
- Namecheap — Domain registration and DNS. (infra)
- Ngram — On-brand product videos from docs, URLs, and screen recordings. (ai, video, tools)
- Payman — Payment rails for AI agents paying humans. (ai, startups)
- React Spring — Spring-physics animation for React. (ui, react)
- Tailwind CSS — Utility-first CSS framework. (ui, design)
- Terraform — Infrastructure as code. (infra)
- Threema — Swiss end-to-end encrypted messenger. (messaging)
- Unkey — API key management and rate limiting. (tools, infra)
- Vackground — Abstract background images and textures. (design)
- Varterm — Free long-form TTS, and auto-read for Cursor agent replies. (ai, tools)
- Vercel — Deploy frontends and serverless functions. (infra, react)