A lightweight library full of beautiful loading indicators for React.

AI-agent power users curate 3 kinds of context: global (across tasks), local (task-specific), and ambient (raw streams like email).

A practical guide to auditing what your coding agent still needs.

Filler cells for CSS grids with borders.

A collection of design engineering concepts.

Learn and understand web accessibility standards with interactive demos showing violations vs. solutions.

A library of interactive UI blocks you can explore, tweak, and take straight into your projects.

Splits text into lines, words and characters exactly where the browser already broke it.

A free, MIT-licensed copy-paste library of 200+ production-ready React and Next.js components. Built with TypeScript and Tailwind CSS v4.

A vastly simpler way to do agent memory

Stop AI from building the wrong interface. Help AI agents understand the user’s work, choose the right interface, and repair what does not fit.

An open-source writing skill for AI agents and a private browser editor for clearer, more human prose without invented facts or flattened voice.

A free stock photography collection led by disabled creatives to help creative teams tell more authentic stories about disability.

Anthropic’s stage-by-stage playbook for the AI-native SDLC: how teams plan, design, build, test, deploy, and maintain software with Claude.

A complete interactive reference to every CSS measurement unit. From the basics of px and rem to the nuances of svh, dvh, and cqw.

Balsa UI is an agent-native, open-code component system for Vue and React.

How typographic grade preserves visual balance across screens and print substrates without altering layout geometry.

Free courses, tutorials, and use cases from Anthropic — whether you’re exploring AI, getting started with Claude, or rolling it out to your team.

Tired of Inter being everywhere? Two real criteria—cap-centered vertical metrics and a tall x-height—for choosing a UI font.

Detecting, extracting, and stylizing motion with WebGPU and TSL, covering motion masking, blob tracking, optical flow, and velocity-based motion blur.