Oxfmt Beta: A Fast, Rust-Powered JavaScript Code Formatter — A 100% Prettier-compatible JavaScript code formatter (and sister project of Oxlint) that boasts being 30x faster than Prettier and 3x faster than Biome. Since the alpha, it now supports embedded language formatting (JSX, YAML, HTML, etc), Tailwind CSS class sorting, import sorting, and more.

Boshen, Dunqing, and Sugiura (VoidZero)

FlexGrid by Wijmo: The Industry-Leading JavaScript Datagrid — A fast and flexible DataGrid for building modern web apps. Key features and virtualized rendering are included in the core grid module. Pick & choose special features to keep your app small. Built for JavaScript, extended to Angular, React, and Vue.

Wijmo From MESCIUS sponsor

The Fastest Frontend Tooling for Humans and AI — Christoph (of Jest fame) covers his preferred tools for getting your JavaScript tool stack running as fast as possible. It’s also intended for LLMs to process via this Markdown version.

Christoph Nakazawa

Goodbye innerHTML, Hello setHTML for Stronger XSS Protection — As of v148, Firefox supports the Sanitizer API. Rather than assigning HTML to DOM nodes with innerHTML, you can use setHTML for safety by default. It’s a cutting-edge feature, with Chrome 146 (beta) also adding support, but nothing in Safari yet, so DOMPurify will remain useful for a while.

Mozilla Hacks

Clerk's Free Tier Now Covers 50,000 MRUs — Up from 10K. MFA included in Pro. Unlimited apps on all plans. No per-app upgrades anymore.

Clerk sponsor

Halving Node.js Memory Usage with Pointer Compression — Cloudflare, Igalia, and the Node project have collaborated on node-caged, a Node.js 25 Docker image with V8 pointer compression enabled, yielding up to 50% memory savings. Matteo digs into all the details.

Matteo Collina

OpenSeadragon 6.0: A Web Viewer for High Resolution Images — A big step forward for a project that’s almost 15 years old, and one of few stable, trusty options for rendering ultra-high resolution images for users to zoom into and pan around. Version 6 introduces a new async and cache-managed pipeline, making it far more efficient at scale.

OpenSeadragon Contributors

SurveyJS: JavaScript Libraries for Dynamic Web Forms — Build JSON-driven forms in your app (React/Angular/Vue) without SaaS limitations. Keep full ownership of your data.

SurveyJS sponsor

bignumber.js 10.0: Library for Arbitrary-Precision Arithmetic — Works around limitations of JavaScript’s Number and BigInt types, such as if you need to work with very large non-integers. Usefully, the library is included on the page so you can play with it in the JS console.

Michael Mclaughlin

⏳ Slowmo: Slow Down, Pause, or Speed Up Time — A tool you can use either as a library or browser extension that slows down time in the browser for debugging and testing purposes. It slows down numerous things including CSS animations, transitions, and requestAnimationFrame.

Francois Laberge

React Doctor: Give Your React Code a Quick Check-Up — Fresh from the creator of React Scan and React Grab, a new tool that scans your codebase and gives you a 0-100 score. (GitHub repo.)

Aiden Bai

Vue Scrollama 3.0: Vue Component for Scroll-Driven Interactions — Scrollama is a library for doing so called ‘scrollytelling’ where scroll position affects the presence of certain elements in the viewport. This project makes it easier to use with Vue.

Vignesh Shenoy