From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

Agent harness built with LangChain and LangGraph. Equipped with a planning tool, a filesystem backend, and the ability to spawn subagents - well-equipped to handle complex agentic tasks.

Scratch Blocks is a library for building creative computing interfaces.

A fast, local first, reactive Database for JavaScript Applications https://rxdb.info/

An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.

Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.

🌐 🔌 The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

Official Sentry SDKs for JavaScript

CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement.

🥑 ArangoDB is a native multi-model database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaSc…

Ethereum implementation on the efficiency frontier

The open source coding agent.

Tensors and Dynamic neural networks in Python with strong GPU acceleration

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

Social networking technology created by Bluesky

Apache Airflow - A platform to programmatically author, schedule, and monitor workflows

Meteor, the JavaScript App Platform

AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.

The Open Source kanban, built with Meteor. GitHub issues/PRs are only for FLOSS Developers, not for support, support is at https://wekan.fi/commercial-support/ . New English strings for new feature…

Building a modern alternative to Salesforce, powered by the community.

Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern REST API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　…

Lightweight coding agent that runs in your terminal

Open-source headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront for cross-border, B2B or marketplace eCommerce.

Routing and navigation for React Native and Web apps

An Open Source Machine Learning Framework for Everyone

The ultimate space for work and life — to find, build, and collaborate with agent teammates that grow with you. We are taking agent harness to the next level — enabling multi-agent collaboration, e…

Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart con…

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

The JavaScript and API powered WordPress.com

Collaborative cheatsheets for console commands 📚.