Google Announces Angular v21 — The Google team has gone all out with this significant release of its popular JavaScript framework. They’ve put together a retro game-themed adventure-based tour of what’s new, along with top notch videos showing off features like its new signal-based approach to forms, MCP server for AI-powered workflows, library of headless components focused on accessibility, and even a new ‘Angular AI Tutor’ to get up to speed.

Google

Authentication. Complete, Not Complex —

FusionAuth sponsor

Tooltip Components Should Not Exist — Dominik challenges some common wisdom in his typically erudite fashion. Stand-alone tooltip components are the wrong abstraction when separated from the underlying UI features that use them. This thinking can apply to many other UI affordances too, so the broad idea is well worth considering.

Dominik Dorfmeister (AKA TkDodo)

Agentic Postgres: Let Your Agents Cook — Build AI apps faster: Postgres with built-in memory, search, and free forkable DBs. Try it free on Tiger.

Tiger Data sponsor

Implementing Wordle in LibreOffice with JavaScript Macros — One of those fun things where the real value is in learning that you can script LibreOffice with JavaScript.

Bojidar Marinov

Automated NPM Secret Rotation in GitHub Actions — If you’ve built a system to automatically publish to npm, you may have had to change things due to this month’s npm security changes. Here’s a way to keep things ticking if you’re not ready to switch to trusted publishing.

Michael Heap

Six Things I Bet You Didn't Know You Could Do With Chrome's Devtools — Part one here covers the first three, with part two covering the last three. Covers time functions, DOM observation, user action replays, and more.

Rachel Kaufman

Webpack Bundle Analyzer 5.0: A Visual Look at Webpack's Output — An official Webpack plugin and CLI tool that shows bundle content in the form of an interactive zoomable treemap so you can dig in and see what’s taking up space in your bundle (and then optimize it, ideally).

Webpack Project

TanStack DB 0.5, Now with Query-Driven Sync — TanStack DB is a client‑first reactive data store that uses differential dataflow to power live, relational queries, sub‑ms incremental updates, and seamless optimistic writes. In v0.5, a component’s query becomes the API call too. “Just write your query and TanStack DB figures out exactly what to fetch.”

Willis, De Parre, and Matthews

Still Writing Tests Manually? — See why modern engineering teams like Dropbox, Notion and Lattice rely on Meticulous to run E2E UI tests.

Meticulous AI sponsor

Brimstone: A New JavaScript Engine Written in Rust — Joining the hundreds of JS engines available, Brimstone has strong language support (97% of the spec), is very small, but remains a work in progress.

Hans Halverson

VueFinder: File Management Component for Vue 3 — Provides a reactive, native-like file explorer interface for users to organize, preview, and manage files.

Yusuf Özdemir

is-online 12.0: Check if the Internet Connection Is Up — Works in both Node and the browser and uses various approaches to check if the Internet is really available.

Sindre Sorhus