Gyorgy Kallai

geo-optimizer-skill. Open-source Answer Engine Optimization (AEO) & Generative Engine Optimization (GEO) toolkit — audit, optimize & track whether ChatGPT, Perplexity, Gemini & Google AI Overviews cite your site. AI SEO / LLM SEO. CLI, Python, MCP, Astro.

compound-engineering-plugin. Official Compound Engineering plugin for Claude Code, Codex, Cursor, and more

improve. Use your most capable model to audit your codebase and write plans for cheaper models to execute.

mapcn. Beautiful map components. 100% Free, Zero config, one command setup.

agency-agents. A complete AI agency at your fingertips - From frontend wizards to Reddit community ninjas, from whimsy injectors to reality checkers. Each agent is a specialized expert with personality, processes, and proven deliverables.

make-interfaces-feel-better. Skill that makes your interfaces feel better.

ponytail. Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

ui-skills. Skills for Design Engineers

bun. SQL-first Golang ORM

spin-delay. Smart spinner helper for React, to manage the duration of loading states.

learn-oauth-go. Complete OAuth 2.1 learning project with authorization code flow and PKCE implementation in Go

pgx. PostgreSQL driver and toolkit for Go

rsvelte. Rust-powered Svelte ecosystem

altcha. GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism.

warp. Warp is an agentic development environment, born out of the terminal.

obs-studio. OBS Studio - Free and open source software for live streaming and screen recording

rolldown. Fast Rust bundler for JavaScript/TypeScript with Rollup-compatible API.

MySpeed. A speed test analysis software that shows your internet speed for up to 30 days

svelte-sitemap. Sitemap generator for SvelteKit. Small helper which scans your SvelteKit routes and generates static sitemap.xml

sentrux. Real-time architectural sensor that helps AI agents close the feedback loop, enabling recursive self-improvement of code quality. Pure Rust.

obscura. The headless browser for AI agents and web scraping

go-capjs. Go implementation of Cap.js, proof-of-work captcha

rrweb. record and replay the web

es-toolkit. A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.

go-thumbhash. A Go implementation of the Thumbhash image placeholder generation algorithm.

frp. A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

svelte-motion. Framer Motion for Svelte 5. Declarative motion.<tag> components with AnimatePresence exit animations, gestures (hover, tap, drag, focus, in-view), variants, FLIP layout animations, shared-layout transitions, spring physics, and scroll-linked motion values. The drop-in Framer Motion alternative for Svelte and SvelteKit.

motion-core. Curated Motion Core Svelte components

phonenumbers. Go port of Google's libphonenumber library

schema-benchmarks. Transparent comparisons between schema validation libraries

svelte-crumbs. Svelte async / ssr breadcrumbs

iter-streams. A proposal for a new streams API

frame. FFmpeg GUI

embed-pdf-viewer. A PDF viewer that seamlessly integrates with any JavaScript project

svelte-virtual-list. 📜 A performant virtual list/scrolling component for Svelte applications - efficiently render large scrollable lists with minimal memory usage

motion-svelte. Framer Motion for Svelte 5

websocket. Package gorilla/websocket is a fast, well-tested and widely used WebSocket implementation for Go.

standard-schema. A standard interface for TypeScript schema validation libraries

icons. beautifully crafted animated icons

huma. Huma REST/HTTP API Framework for Golang with OpenAPI 3.1

chi. lightweight, idiomatic and composable router for building Go HTTP services

immich. High performance self-hosted photo and video management solution.

kener. Stunning status pages, batteries included!

cnblocks. 150+ UI & Marketing blocks using Svelte 5, Tailwind CSS v4 and Shadcn Svelte

svelte-expirable. A Svelte store with items that expire

svelte-json-tree. JSON tree component for Svelte

react-chatbot-kit. TypeScript

vue-pdf. PDF component for Vue 3

bruno. Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

uptime-kuma. A fancy self-hosted monitoring tool

email-otp. JavaScript

pkg.pr.new. 📦️ Continuous (Preview) Releases for your libraries!

fluid-tailwind. Build better responsive designs in less code.

vitepress-openapi. Generate VitePress API Docs from OpenAPI specifications

fuego. Golang Fuego - Web framework generating OpenAPI 3 spec from source code - Pluggable to existing Gin & Echo APIs

zpam3. zPAM is competitive mod for COD2

minio. MinIO is a high-performance, S3 compatible object store, open sourced under GNU AGPLv3 license.

gofakes3. A simple fake AWS S3 object storage (used for local test-runs against AWS S3 APIs)

arethetypeswrong.github.io. Tool for analyzing TypeScript types of npm packages

color-contrast-picker. Color picking tool for WCAG 2.1 compliant colors. Finds colors meeting the luminance ratio for any WCAG 2.1 standard, while preserving tone.

Google-Gemini-Thread-Animation. React.js animation replicates Google Gemini thread, responding to user scroll for an engaging experience.

tailwind-animations. Easy peasy animations for your Tailwind project

tailwindcss-animate. A Tailwind CSS plugin for creating beautiful animations

svg-spinners. A collection of 24 x 24 dp SVG spinners! (CSS & SMIL)

Battery-Health-Charging. Gnome extension to Set battery charging threshold / charging limit / charging mode Battery Health Charging: An extension to maximize the battery life of laptops by setting their charging threshold or modes.

spectypes. Fast, compiled, eval-free data validator/transformer

hono. Web framework built on Web Standards

WebSerial. A remote terminal library for wireless microcontrollers to log, monitor or debug your firmware/product.

fdir. ⚡ The fastest directory crawler & globbing library for NodeJS. Crawls 1m files in < 1s

msw. Industry standard API mocking for JavaScript.

dbgate. Database manager for MySQL, PostgreSQL, SQL Server, MongoDB, SQLite and others. Runs under Windows, Linux, Mac or as web application

editor. A rich text editor React component for markdown

typebox. JSON Schema Type Builder with Static Type Resolution for TypeScript

valibot. The modular and type safe schema library for validating structural data 🤖

twoslash. Markup for generating rich type information in your documentations ahead of time.

shiki-magic-move. Smoothly animated code blocks with Shiki

runed. Magical utilities for your Svelte applications.

simple-masonry-layout. Calculating masonry layouts based on rectangles, without being tied to the DOM.

Leaflet. 🍃 JavaScript library for mobile-friendly interactive maps 🇺🇦

awesome-status-pages. Awesome list of status page open source software, services and public status pages of major internet companies

postcode-validator. Validate postcodes based on country

svelte-motion. An animation library for Svelte based on framer-motion.

knip. ✂️ Find unused files, dependencies and exports in your JavaScript and TypeScript projects. Knip it before you ship it!

zod. TypeScript-first schema validation with static type inference

oxc. ⚓ A collection of high-performance JavaScript tools.

egjs-infinitegrid. A module used to arrange card elements including content infinitely on a grid layout.

river. This repository is the home of the River reverse proxy application, based on the pingora library from Cloudflare.

pingora. A library for building fast, reliable and evolvable network services.

mux. Package gorilla/mux is a powerful HTTP router and URL matcher for building Go web servers with 🦍

libopenapi. libopenapi is a fully featured, high performance OpenAPI 3.2, 3.1, 3.0, Overlays and Arazzo parser, library, validator and toolkit for go applications.

tigerbeetle. The financial transactions database designed for mission critical safety and performance.

axum. HTTP routing and request-handling library for Rust that focuses on ergonomics and modularity

biome. A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

pragmatic-drag-and-drop. Fast drag and drop for any experience on any tech stack

postmate. 📭 A powerful, simple, promise-based postMessage library.

penpal. Penpal simplifies communication with iframes, workers, and windows by using promise-based methods on top of postMessage.

coriolis. A library for cross iframe communication with high level API and features.

mkcert. A simple zero-config tool to make locally trusted development certificates with any names you'd like.

SMTPtool. A slim .NET based UI tool to communicate with SMTP servers and to quickly compose, mail and remail messages

paneforge. Resizable pane components for Svelte.

bender. A dependency management tool for hardware projects.

safevalues. TypeScript

sonner. An opinionated toast component for React.

svelte-sonner. An opinionated toast component for Svelte. A port of @emilkowalski's sonner.

open-ui. Maintain an open standard for UI and promote its adherence and adoption.

npm-ts-workspaces-example. Monorepos example project using npm workspaces and TypeScript project references

openappsec. open-appsec is a machine learning security engine that preemptively and automatically prevents threats against Web Application & APIs. This repo include the main code and logic.

rollup-plugin-typescript2. Rollup plugin for typescript with compiler errors.

swc. Rust-based platform for the Web

screenshot-to-code. Drop in a screenshot and convert it to clean code (HTML/Tailwind/React/Vue)

layerchart. Composable Svelte chart components to build a large variety of visualizations

eide. An embedded development environment for mcs51/stm8/avr/cortex-m/riscv on VsCode.

slate. Beautiful static documentation for your API

docusaurus-openapi-docs. 🦝 OpenAPI plugin for generating API reference docs in Docusaurus v3.

paradedb. One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.

docusaurus-search-local. Offline/local search for Docusaurus v2/v3

docusaurus-plugin-search-local. An offline/local search plugin for Docusaurus v2

docusaurus-search-local. Offline / Local Search for Docusaurus v3. Try it live at:

so-vits-svc-fork. so-vits-svc fork with realtime support, improved interface and more features.

svelte-component-test-recipes. Svelte component test recipes using Vitest & Testing Library with TypeScript

ESP-DASH. Blazing fast library to create a functional, on-device dashboard for ESP32, RP2040+W and RP2350+W microcontrollers

react-international-phone. ☎️ International phone input component for React

types-with-jsdocs. Using JSDoc for Typescript Types

lucide. Beautiful & consistent icon toolkit made by the community. Open-source project and a fork of Feather Icons.

svelte-ripple-action. Svelte Ripple Action

ESP32-sveltekit. A simple and extensible framework for ESP32 based IoT projects with a feature-rich, beautiful, and responsive front-end build with Sveltekit, Tailwind CSS and DaisyUI. This is a project template to get you started in no time with a fully integrated build chain.

melt-ui. A set of headless, accessible component builders for Svelte.

DOMPurify. DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:

xterm.js. A terminal for the web

credit-card-type. A library for determining credit card type

fast-blurhash. Fast & tiny Wolt BlurHash decoder implementation

unocss. The instant on-demand atomic CSS engine.

table. 🤖 Headless UI for building powerful tables & datagrids for TS/JS - React-Table, Vue-Table, Solid-Table, Svelte-Table

svelte-svg-transform. Easily transform SVG files inside of Svelte components

tilt. Define your dev environment as code. For microservice apps on Kubernetes.

thumbhash. A very compact representation of an image placeholder

sveltekit-is-land. Partial hydration in SvelteKit using @11ty/is-land

navi. An interactive cheatsheet tool for the command-line

sveltekit-static-sitemap. Generate sitemap at buildtime for SvelteKit applications with prerendered routes. Works with any adapter.

svelte-formly. Generator dynamic forms for Svelte JS

vite-plugin-react-remove-attributes. A Vite-Plugin for React to remove Attributes on bundling

next.js. The React Framework

partytown. Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉

publint. Lint packaging errors

svelte-emails. Create emails with Svelte and Vite!

floating-ui. A JavaScript library to position floating elements and create interactions for them.

sveltekit-auth-example. Example showing how to use Auth.js with SvelteKit.

webdriverio. Next-gen browser and mobile automation test framework for Node.js

sveltkit-hook-html-minifier. A sveltkit hook that wrapps html-minifier

urara. 🌸 Sweet, Powerful, IndieWeb-Compatible SvelteKit Blog Starter. [Polaris]

daisyui. 🌼 🌼 🌼 🌼 🌼  The most popular, free and open-source Tailwind CSS component library

jsoncrack.com. ✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML and CSV into interactive graphs.

tiny-glob. Super tiny and ~350% faster alternative to node-glob

prompts. ❯ Lightweight, beautiful and user-friendly interactive prompts

kleur. The fastest Node.js library for formatting terminal text with ANSI colors~!

create-index. Creates ES6 ./index.js file in target directories that imports and exports all sibling files and directories.

indexr. Autogenerate dynamic ES6 index modules.

sveltekit-search-params. The easiest way to read and WRITE from query parameters in sveltekit.

sveltekit-monorepo. sveltekit + turborepo + histoire in a turborepo

pdfmake. Client/server side PDF printing in pure JavaScript

svelte-img. High-performance responsive/progressive images for SvelteKit

imagetools. Load and transform images using a toolbox :toolbox: of custom import directives!

svelte-preprocess-import-assets. Import assets directly in your markup

gvm. Go Version Manager

recaptcha-v3. Simple and easy to use reCAPTCHA (v3 only) library for the browser.

AmeisenBotX. A bot, aimed at full automatic gameplay

tooltips. A simple tooltip action and component designed for Svelte.

saos. Svelte Animation on Scroll - A small component to make your CSS animations work on scroll with Svelte

svelte-tel-input. Svelte Tel Input

hypercolor. A curated collection of beautiful premade gradients using default colors from the Tailwind palette as well as a selection of custom color gradients.

js-serializer. Transform any object, class, array, primitive to a serialized string and vice-versa

svelte-command-palette. Dead simple command palette for svelte

monorepo. Turborepo + Sveltekit + PNPM + Tailwind + Histoire

piper. GTK application to configure gaming devices

faker. Generate massive amounts of fake data in the browser and node.js

muonw-powertable. ▦ PowerTable is a Svelte component that turns JSON data into an interactive HTML table. Inspired by DataTables. Powered by Svelte.

stores-mono. Mono-Repo for Svelte compatible Store packages

svelte-terminal. A Terminal Like Website

alien-console. A ncurses based clone of the Alien: Isolation console interfaces.

cool-retro-term. A good looking terminal emulator which mimics the old cathode display...

svimg. Svelte image component with image preprocessing and lazy loading

world-flags-sprite. A sprite of all the worlds' flags.

country-flags. SVG and PNG renders of all countries' flags.

waka-box. 📊 Update a pinned gist to contain your weekly WakaTime stats

prism. Lightweight, robust, elegant syntax highlighting.

shiki. A beautiful yet powerful syntax highlighter

svelecte. Flexible autocomplete/select component written in Svelte,

storybook-experimental-vite. Svelte

starter-vite-svelte-ts-with-storybook-vite. Svelte

devops-exercises. Linux, Jenkins, AWS, SRE, Prometheus, Docker, Python, Ansible, Git, Kubernetes, Terraform, OpenStack, SQL, NoSQL, Azure, GCP, DNS, Elastic, Network, Virtualization. DevOps Interview Questions

crypter. Crypter is a tool to encrypt/decrypt messages for secure chating

cypress-shadow-dom. Extend Cypress commands with shadow DOM support

awesome-svelte-stores. A list of awesome Svelte stores

oasdiff. OpenAPI Diff and Breaking Changes

openapi.tools. The most comprehensive collection of quality OpenAPI tooling, curated by Phil Sturgeon and the team at APIs You Won't Hate.

static-sitemap-cli. CLI to generate XML sitemaps for static sites from local filesystem

danger-js. ⚠️ Stop saying "you forgot to …" in code review

sveltekit-svg. SvelteKit plugin that makes it possible to import SVG files as Svelte components, inline SVG code or urls

svelte-navigator. Simple, accessible routing for Svelte

sveltekit-view-transitions. Page transitions in SvelteKit with the View Transition API.