Virtual whiteboard for sketching hand-drawn like diagrams

The agent harness for building analytics into your app on top of ClickHouse, Redpanda and other high-performance analytical infrastructure

AI Observability & Evaluation

The adaptive interface system for modern web experiences.

Argos detects unintended visual changes in your UI, helping teams maintain high product quality as they ship faster.

Penpot: The open-source design tool for design and code collaboration

Develop. Preview. Ship.

🌟 Build beautiful, accessible, high-performance documentation websites with Astro

A utility-first CSS framework for rapid UI development.

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

shadcn/ui, but for Svelte. ✨

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

web development for the rest of us

The web framework for content-driven websites. ⭐️ Star to support our work!

D2 is a modern diagram scripting language that turns text to diagrams.

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, d…

Front End interview preparation materials for busy engineers (updated for 2026)