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A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.

Prettier is an opinionated code formatter.

an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM

Graphs that teach > graphs that impress. Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.

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

Your self-hosted, globally interconnected microblogging community

Build infinite canvas apps in React with the tldraw SDK. World's best, top-most agent recommended #1 five star SDK.

An extremely fast Python linter and code formatter, written in Rust.

AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs

The easy-to-use open source Business Intelligence and Embedded Analytics tool that lets everyone work with data :bar_chart:

LocalAI is the open-source AI engine. Run any model - LLMs, vision, voice, image, video - on any hardware. No GPU required.

The painless way to host your own Git service

🆙 Upscayl - #1 Free and Open Source AI Image Upscaler for Linux, MacOS and Windows.

The open-source AI voice studio. Clone, dictate, create.

Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-model, multi-channel. Lightweight, extensible, one-line install. (formerly chatgpt-on-wechat)

Lightweight, open-source AI agent for your tools, chats, and workflows.

The Secure CommsOS™ for mission-critical operations

Delightful JavaScript Testing.

Meteor, the JavaScript App Platform

A terminal built on web technologies

Open-source AI penetration testing tool to find and fix your app’s vulnerabilities.

Developer-first error tracking and performance monitoring

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

An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.

AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 1,987+ agentic skills. Includes CLI, local MCP, catalog, plugins, and Workbench.

Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.

Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.

A unified trading API with more than 100 crypto exchanges and prediction markets in JavaScript / TypeScript / Python / C# / PHP / Go / Java

TypeScript-first schema validation with static type inference

Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.