Jeremy Dorn

devtools. GrowthBook DevTools extension for Chrome

skills. Agent Skills for GrowthBook

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

headroom. Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

dragonfly. A modern replacement for Redis and Memcached

awesome-design-md. A collection of DESIGN.md files analysis by popular brand design systems. Drop one into your project and let coding agents generate a matching UI.

gstack. Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

OpenPlanter. Python

polyglot. Rust/Wasm-powered SQL transpiler for more than 30 SQL dialects

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

lynx. Empower the Web community and invite more to build across platforms.

inko. A language for building concurrent software with confidence

rrweb. record and replay the web

nitric. Nitric is a multi-language framework for cloud applications with infrastructure from code.

Automated-AI-Web-Researcher-Ollama. A python program that turns an LLM, running on Ollama, into an automated researcher, which will with a single query determine focus areas to investigate, do websearches and scrape content from various relevant websites and do research for you all on its own! And more, not limited to but including saving the findings for you!

nats-server. High-Performance server for NATS.io, the cloud and edge native messaging system.

bulker. Service for bulk-loading data to databases with automatic schema management (Redshift, Snowflake, BigQuery, ClickHouse, Postgres, MySQL)

openpanel. OpenPanel is an open-source web and product analytics platform, an open-source alternative to Mixpanel with optional self-hosting.

webhook.site. ⚓️ Easily test HTTP webhooks with this handy tool that displays requests instantly.

rocketnotes. ✨ AI-powered markdown editor - leverage LLMs with your documents - 100% local or in the cloud

daytona. Daytona is a Secure and Elastic Infrastructure for Running AI-Generated Code

handshake. Handshake handles your OAuth flows with over 200 popular APIs. Setup and deploy to Vercel in 5 minutes. 🤝 🍭

tsx. ⚡️ TypeScript Execute | The easiest way to run TypeScript in Node.js

openmeter. Metering and Billing for AI, API and DevOps. Collect and aggregate millions of usage events in real-time and enable usage-based billing.

growthbook. Open Source Feature Flags, Experimentation, and Product Analytics

lancedb. Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

columnar. Postgres-native columnar storage extension

growthbook-python. Powerful A/B Testing for Python Apps

swishjam. The Brain Of Your B2B SaaS. A better way to unify your customers' data and get meaningful insights out of the box. Built on Next.js, Ruby on Rails, Tailwind, Shadcn, and more. Backed by Y Combinator - YC W23

garph. Fullstack GraphQL Framework for TypeScript

catalog. The Magic Patterns Catalog is an open-source website that lists the most popular React component libraries, helping you find the perfect component.

hamilton. Apache Hamilton helps data scientists and engineers define testable, modular, self-documenting dataflows, that encode lineage/tracing and metadata. Runs and scales everywhere python does.

wasp. The batteries-included full-stack framework for the AI era. Develop JS/TS web apps (React, Node.js, and Prisma) using declarative code that abstracts away complex full-stack features like auth, background jobs, RPC, email sending, end-to-end type safety, single-command deployment, and more.

orchid-orm. Orchid ORM

lago. Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics

growthbook-proxy. :zap: GrowthBook Proxy Server - Caching, Streaming, Security, and Scalability

bloop. bloop is a fast code search engine written in Rust.

crowd.dev. LFX Community Data Platform (CDP)

trino. Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

sql-formatter. A whitespace formatter for different query languages

TypeRunner. High-performance TypeScript compiler

langcc. langcc: A Next-Generation Compiler Compiler

medplum. Medplum is a healthcare platform that helps you quickly develop high-quality compliant applications.

windmill. Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.

oidc-client-ts. OpenID Connect (OIDC) and OAuth2 protocol support for browser-based JavaScript applications

ClickHouse. ClickHouse® is a real-time analytics database management system

signoz. SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.

airbyte. Open-source data movement for ELT pipelines and AI agents — from APIs, databases & files to warehouses, lakes, and AI applications. Both self-hosted and Cloud.

fingerprintjs. The most advanced free and open-source browser fingerprinting library

pipedream. Connect APIs, remarkably fast. Free for developers.

piranha. A tool for refactoring code related to feature flag APIs

gantt. Open Source Javascript Gantt

lunasec. LunaSec - Dependency Security Scanner that automatically notifies you about vulnerabilities like Log4Shell or node-ipc in your Pull Requests and Builds. Protect yourself in 30 seconds with the LunaTrace GitHub App: https://github.com/marketplace/lunatrace-by-lunasec/

trpc. 🧙‍♀️ Move Fast and Break Nothing. End-to-end typesafe APIs made easy.

genesis. All generic functions for Go you ever need!

polis. Streamline your web application's authentication with Polis, an SSO service supporting SAML and OpenID Connect protocols. Beyond enterprise-grade Single Sign-On, it also supports Directory Sync via the SCIM 2.0 protocol for automatic user and group provisioning/de-provisioning.

skytable. Skytable is a modern scalable NoSQL database with BlueQL, designed for performance, scalability and flexibility. Skytable gives you spaces, models, data types, complex collections and more to build powerful experiences

danfojs. Danfo.js is an open source, JavaScript library providing high performance, intuitive, and easy to use data structures for manipulating and processing structured data.

mantine. A fully featured React components library

okteto. Develop your applications directly in your Kubernetes Cluster

stale-while-revalidate-cache. Storage-agnostic and configurable stale-while-revalidate cache helper for any function, for any JavaScript environment.

lightdash. Agentic BI. Analytics at the speed of code ⚡️

bioicons. A library of free open source icons for science illustrations in biology and chemistry

medusa. The world's most flexible commerce platform for agents and developers

awesome-oss-alternatives. Awesome list of open-source startup alternatives to well-known SaaS products 🚀

ploomber. The fastest ⚡️ way to build data pipelines. Develop iteratively, deploy anywhere. ☁️

netmaker. Netmaker makes networks with WireGuard. Netmaker automates fast, secure, and distributed virtual networks.

ToolJet. ToolJet is the open-source foundation of ToolJet AI - the enterprise app generation platform for building internal tools, dashboard, business applications, workflows and AI agents 🚀

plane. A distributed system for running WebSocket services at scale.

firezone. Enterprise-ready zero-trust access platform built on WireGuard®.

microdiff. A fast, zero dependency object and array comparison library. Significantly faster than most other deep comparison libraries and has full TypeScript support.

fonoster. 🚀 The open-source alternative to Twilio.

react-data-grid. Feature-rich and customizable data grid React component

BorrowScript. TypeScript with a Borrow Checker. Multi-threaded, Tiny binaries. No GC. Easy to write.

docker-python-nodejs. 🐳 Python with Node.js docker image

OpenMetadata. The Open Context Layer for Data and AI , OpenMetadata is the open platform for building trusted data context and business semantics for humans, AI assistants, and agents.

react-hook-form. 📋 React Hooks for form state management and validation (Web + React Native)

evidence. Business intelligence as code: build fast, interactive data visualizations in SQL and markdown

sql-metadata. Uses tokenized query returned by python-sqlparse and generates query metadata

supabase. The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

quepid. Improve your OpenSearch, Elasticsearch, Solr, Vectara, Algolia and Custom Search search quality.

parabeac_core. Continuous Design / Continuous Integration for Figma to Flutter

bayesAB. 🐢 bayesAB: Fast Bayesian Methods for A/B Testing

promote-open-source-project. 📄 How to promote my open source project?

python-shell. Run Python scripts from Node.js with simple (but efficient) inter-process communication through stdio

windmill-react-ui. 🧩 The component library for fast and accessible development of gorgeous interfaces.

react-cool-virtual. 😎 ♻️ A tiny React hook for rendering large datasets like a breeze.

egjs-flicking. 🎠 ♻️ Everyday 30 million people experience. It's reliable, flexible and extendable carousel.

zet. CLI utility to find the union, intersection, set difference, etc of files considered as sets of lines

shepherd. Guide your users through a tour of your app

halfmoon. Halfmoon is a highly customizable, drop-in Bootstrap replacement. It comes with three built-in core themes, with dark mode support for all themes and components.

jitsu. Jitsu is an open-source Segment alternative. Fully-scriptable data ingestion engine for modern data teams. Set-up a real-time data pipeline in minutes, not days

growthbook-react. Powerful A/B testing for React Apps

dom-mutator. Apply persistent DOM Mutations on top of HTML you don't control.

growthbook-php. PHP

growthbook-js. Powerful A/B testing for JavaScript - both browser and NodeJS

indent.js. Pure code indentation for jsx, tsx, ts, js, html, css, less, scss.

visx. 🐯 visx | visualization components

markdown-it. Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed

reveal.js. The HTML Presentation Framework

docz. ✍ It has never been so easy to document your things!

PhotoSwipe. JavaScript image gallery for mobile and desktop, modular, framework independent

pandoc. Universal markup converter

Method-Draw. Method Draw, the SVG Editor for Method of Action

phaser. Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

MuseScore. MuseScore is an open source and free music notation software. For support, contribution, bug reports, visit MuseScore.org. Fork and make pull requests!

beeplay. Write a song in JavaScript

svgo. SVG Optimizer for Node.js and CLI. ⚙️

card. :credit_card: make your credit card form better in one line of code

skeuocard. Skeuocard progressively enhances credit card inputs to provide a skeuomorphic interface.

weather-icons. 215 Weather Themed Icons and CSS

bulletphp. A resource-oriented micro PHP framework

guzzle. Guzzle, an extensible PHP HTTP client

Glyphr-Studio-1. Now deprecated, Glyphr Studio v1 served us well from 2010 to 2023.

rrssb. :arrow_right_hook: Ridiculously Responsive Social Sharing Buttons

Ghost. Independent technology for modern publishing, memberships, subscriptions and newsletters.

nw.js. Call all Node.js modules directly from DOM/WebWorker and enable a new way of writing applications with all Web technologies.

code-guide. Standards for developing consistent, flexible, and sustainable HTML and CSS.

ratchet. Build mobile apps with simple HTML, CSS, and JavaScript components.

q. q - Run SQL directly on delimited files and multi-file sqlite databases

arista. Arista Transcoder

long-audio-aligner. http://sourceforge.net/p/cmusphinx/code/11633/tree/branches/long-audio-aligner/Aligner

Faker. Faker is a PHP library that generates fake data for you

EditTable. A small jQuery plugin to make your HTML tables editable

pegjs. PEG.js: Parser generator for JavaScript

alpaca. Alpaca provides the easiest way to generate interactive HTML5 forms for web and mobile applications. It uses JSON Schema and simple Handlebars templates to generate great looking, dynamic user interfaces on top of Twitter Bootstrap, jQuery UI, jQuery Mobile and HTML5.

dorncms-2. A complete rewrite of DornCMS

AssetBundler. A PHP class for converting groups of assets into bundles

js-form-validator. Unobtrusive javascript form validation. Library agnostic and completely customizeable.

FileSystemCache. A simple PHP class for caching data in the filesystem.

hummingbird. Real time web analytics using node.js and web sockets

mxn. A mapping abstraction library.

hummingbird. Real time web analytics using node.js and web sockets

mxn. A Javascript Mapping Abstraction library.