Type-safe OpenAPI client for complex and large APIs. Requests follow the document's parameter styles, media types and encodings exactly. Fluent paths, scoped CLI generation and an openapi-fetch adapter. - jskits/openapi-chain

Vite+ 1.0 is here. One CLI manages your runtime, package manager, and frontend toolchain.

Twelve Node.js built-ins that replace axios, nodemon, dotenv, jest, chalk, glob and more, with their stability in Node 24 and one gotcha each.

Strike or rub a set of virtual Tibetan singing bowls: synthesized in the browser with Web Audio, with the beating overtones of the real thing. - evoluteur/tibetan-singing-bowls

Draw a mandala with mirrored symmetry: pick the number of folds, paint with a brush, and export your mandala as PNG or SVG. - evoluteur/mandala-maker

A sync engine for Supabase and a local PGlite instance - inspired by PowerSync. - aboviq/supapower

billboard.js 4.1.0: Live resizing, configurable subchart, React subpath & CSP-safe worker Glad to announce billboard.js v4.1.0! 🎉 This minor release is about giving back control over things that …

The Scenario In Subito's design system, we rely heavily on a custom MultiSelect component.... Tagged with webdev, webperf, programming, javascript.

Play a frequency and watch the sand settle into its Chladni figure, computed from the wave equation. - evoluteur/cymatics

A browser 1v1 running 60Hz server-authoritative simulation on one Cloudflare Durable Object. The architecture, the measurements, and four running demos: the tick, the round trip, client prediction, and lag compensation.

Turn the five Platonic solids in 3D, show their duals, read their measurements, and print the nets to fold your own. - evoluteur/platonic-solids

How to store application state in a URL fragment without a backend, including Base64url encoding, compression benchmarks, browser history, and URL limits.

Sacred Geometry Generator: draw, tune, and export Vesica Piscis, Seed of Life, Flower of Life, Metatron's Cube, and the Golden Spiral as SVG - evoluteur/sacred-geometry

I used Zustand for a long time. It is small, fast, and refreshingly restrained. To this day, if a... Tagged with webdev, react.

Simple web page to play binaural beats for sleep, meditation, relaxation, and focus: Delta, Theta, Alpha, Beta, and Gamma brainwave frequencies, with an optional pink or brown noise bed. - evoluteur/binaural-beats

Accessible, customizable toast notifications for modern web apps. A framework-agnostic JavaScript library with progressive enhancement, sensible core styles, and optional CSS presets.

We built the same data grid for React, Svelte, and Vue. Here's what we learned about performance, framework differences, and why the framework is the last thing you should blame when your app is slow.

Token costs kept showing up on my bill and I couldn't tie them to specific sessions. When something... Tagged with javascript, typescript, ai, devtools.

Build a complete React authentication flow with JWT, Zustand, Axios interceptors, persistent login state, and protected routes.

quayside survived 1,254 dead mutants and an adversarial review. The bug that got through was four lines I wrote to fix a different bug — on the exact scenario idempotency libraries exist for. Tagged with node, typescript, distributedsystems, opensource.

I built a distributed circuit breaker on Redis. Compare-and-set on the state name looked correct and was not — and the version that could hang your service for 73 seconds passed every test I had. Tagged with node, distributedsystems, typescript, opensource.

Framework for building REST APIs for CRUD with models rather than code (using Node.js, Express, and PostgreSQL). - evoluteur/evolutility-server-node

Xec is a typed execution layer for TypeScript: one $ API that runs commands on local machines, SSH hosts, Docker containers and Kubernetes pods, with typed results, structured errors and connection pooling.

I pointed Stryker at breakwater, my Node.js resilience library, and watched 199 mutants survive a suite with full coverage. Here's what they exposed, why you should test your tests, and the Prometheus + Grafana support that shipped after. Tagged with node, testing, typescript, opensource.

Kysera is a type-safe data-access toolkit for TypeScript built on Kysely: Repository pattern, functional DAL, and a security-hardened plugin core. Not an ORM.

Learn whether JavaScript obfuscation still works against AI-assisted reverse engineering, what it can protect, where it fails, and how to use it responsibly.

We built a plugin to allow Mongoose Studio to connect to Apache Cassandra via DataStax' Data API, here's how it works.

Retry, circuit breaker, timeout, bulkhead and rate limiting that actually compose — with observability built in. Why the existing options weren't enough, and what breakwater does differently. Tagged with node, typescript, webdev, opensource.

I audited my two-year-old Redis client: a README full of features that didn't exist, writes that resolved while doing nothing, and a reconnection layer whose best fix was deletion. Tagged with redis, node, javascript, opensource.

Prebuilt, interactive HTML widgets for MCP Apps in Go — data tables and forms, self-contained in a single binary, host-themed, spec-compliant. - Techthos/gadget

React component for bubble chart, bar chart, and pie chart, with animated morphing transitions between charts, on hover, and on window resize. - evoluteur/react-morph-charts

Renderer for Material UI: an LLM emits A2UI, this renders it as real MUI in your host ThemeProvider — with streaming, two-way binding, charts, and runtime custom components. - yessGlory17/generative-mui

React component for structured queries like "Contacts where Firstname starts with 'A' and Birthday before 1/1/2000 and State in (CA, NY, FL)"... - evoluteur/structured-filter-react

A robust and elegant abstraction for RabbitMQ in Node.js, featuring advanced capabilities such as circuit breaker, intelligent retries, automatic compression, and parallel processing. - pinceladasdaweb/rabbitmq

Nim: A Python-Like C/C++ Alternative Every Programmer Should Learn A statically typed, but Python-like systems programming language that transpiles to C, C++, and JavaScript Rust and Go are the most …

I used destructuring every object in JavaScript. Here's why keeping objects intact often makes code easier to read, debug, and maintain.

Learn practical techniques for processing huge JSON files efficiently in JavaScript using streams, incremental parsing, and memory-friendly patterns.

web-performer is a robust tool designed to perform HTTP actions based on YML definitions. Streamline your web requests and automate your workflows with ease using our intuitive YML configuration. - Techthos/web-performer

Effortless multithreading for high-performance JavaScript web apps. - coactionjs/coaction

❓ A JavaScript library that generates responsive attribute setters for any HTML element. - williamtroup/Rattribute.js

🔗 A JavaScript library for generating responsive HTML link targets. - williamtroup/Rink.js

Introducing SVAR Kanban: a framework-native task board component for Svelte, React, and Vue. Open-source core, with PRO features for large, complex boards.

Build self-contained desktop applications from a Deno project, with framework auto-detection, hot reload, native windowing, auto-update, and cross-platform distribution.

date-light is a zero-dependency, fully typed date utility library for TypeScript.

Learn how modern AI evolved from simple language models to Transformers, reasoning models, and ChatGPT through practical examples and diagrams.