A weekly overview of the most popular JavaScript news, articles and libraries
Newsletter » 499
Dec 11, 2025
Popular News and Articles
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Useful patterns for building HTML toolssimonwillison.net -
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Puter.js - The Backend for AI-Generated Apps
One-shot full-stack apps with your existing AI coding tool. Puter.js gives you Auth, Storage, DB, AI & more, with up to 90% fewer AI tokens than other backend platforms. » Learn more
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The Performance Revolution in JavaScript Toolingblog.appsignal.com -
Built a lightweight Svelte 5 library for non-trivial UI patternstrioxide.obelus.fi -
Hand-drawn checkbox, a progressively enhanced Web Componentguilhermesimoes.github.io -
Avatune - framework agnostic, AI-powered SVG avatar systemwww.avatune.dev -
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives » Learn more
www.saashub.com -
The framework isn't for you. You're just along for the voyagedoingsoftwarewrong.com -
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3D in CSS (No JavaScript)codepen.io
Trending libraries and projects
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Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More
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Tower defense game that teaches cloud architecture. Build infrastructure, survive traffic, learn scaling.
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Extract any website’s design system into tokens in seconds: logo, colors, typography, borders & more. One command.
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rep+ — Burp-style HTTP Repeater for Chrome DevTools with built‑in AI to explain requests and suggest attacks
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