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Build WebAssembly request handlers and deploy them across Fastly's edge network.

Run Node.js tests with a BDD-style interface, configurable reporters, lifecycle hooks, and asynchronous support.

Parse flexible colour input and generate conversions, adjustments and harmonies.

Compare colour pairs interactively or check a complete palette in code.

Connect website traffic, custom events and technical behavior in hosted reports.

GitHub’s SVG icon system for developer and product interfaces.

Build content-driven websites with server-first pages and interactive component islands.

Attach a dependency-free colour popup to a page element.

A curriculum centered on React applications and Node APIs

Visual workflow automation with code and AI for technical teams

Self-guided command-line programming workshops

Frontend interview questions across code, CSS and design

E-paper browser with per-site controls and optional AI services

Generate production PDFs from HTML, CSS, and JavaScript

Generate improved website UI from heatmap data with AI.

A self-hostable search proxy with tracking-parameter removal

A deterministic layer that lets agents make code changes across an entire code estate.

Creative programming tracks for beginners

Share a small file through a link without a JavaScript dependency

Browser-based development environments for frontend, Node.js and JavaScript work.

A collection of games teaching web-development concepts

Runs open models locally and exposes a developer interface for using them from apps and coding tools.

Convert AsciiDoc source into HTML and other publishing formats with the Ruby-based reference implementation.

Filled and outline UI symbols with optional animation helpers.