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sql.js: The Entire SQLite Engine Running in Your Browser Tab
What if you could run a full relational database in your browser without a server, a network connection, or a single native binary? sql.js takes the legendary SQLite engine, compiles it to WebAssembly, and hands you the entire SQL dialect right in JavaScript. Fourteen years of battle-tested reliability, zero dependencies.
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Ohm: The Parsing Toolkit That Finally Makes Grammars Fun
Most parsing libraries ask you to mash grammar rules and code logic into one tangled mess. Ohm takes the radical stance that grammars should just describe syntax, period. The result is a parsing toolkit that is cleaner, more reusable, and honestly kind of enjoyable to work with.
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focus-trap: The Accessibility Bouncer Your Modals Deserve
Every time a user opens a modal and Tab sends them behind the curtain into the void of the background page, an accessibility angel loses its wings. focus-trap is the decade-old, battle-hardened utility that keeps keyboard focus exactly where it belongs.
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Croner: The Universal Cron Library That Runs Everywhere Your JavaScript Does
Scheduling tasks with cron expressions is one of those problems that looks solved until you try to do it in a browser, need second-level precision, or want to know when the last Friday of every month falls. Croner handles all of that and runs on every JavaScript runtime that matters.
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TanStack Hotkeys: The Keyboard Shortcut Library That Types Back
Keyboard shortcuts are one of those features that separate a polished app from a prototype. TanStack Hotkeys enters the ring with something no other shortcut library offers: full TypeScript autocomplete for every valid key combination, plus a toolkit of utilities that makes building professional-grade keyboard interactions surprisingly painless.
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React SCAD: Print Your Components (Literally, on a 3D Printer)
What if you could build 3D models the same way you build UIs -- with components, props, and JSX? React SCAD takes the React reconciler into uncharted territory, turning your component tree into OpenSCAD files you can slice and 3D print.
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eslint-plugin-react-you-might-not-need-an-effect: The React Docs Page That Learned to Read Your Code
Every React developer has read that famous docs page: You Might Not Need an Effect. But reading and remembering are two different things. This ESLint plugin turns those guidelines into automated, enforceable lint rules that catch unnecessary effects before they cause extra re-renders and tangled logic.
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Dockview: Build VS Code-Style Layouts Without Breaking a Sweat
Ever wondered how VS Code pulls off that slick panel-docking experience? Dockview brings the same IDE-grade layout system to your own apps, complete with drag-and-drop tabs, floating panels, and popout windows. Zero dependencies, full TypeScript support, and it works with React, Vue, Angular, or plain vanilla.
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DayFlow: A Featherweight Calendar That Punches Above Its Weight
Building a scheduling UI from scratch is the kind of project that starts with optimism and ends with date math nightmares. DayFlow hands you a polished, Google Calendar-style component out of the box, backed by a plugin system that keeps the core impossibly small.
