#open-source

Modern, extensible rich text editor toolkit built on ProseMirror. Classic and Notion-style editors out of the box. Or go headless and assemble from 65+ tree-shakeable extensions. First-class wrappers for Angular, React, Vue, and Vanilla.

Flamingock brings Change-as-Code (CaC) to your entire stack. It applies versioned, auditable changes to the external systems your application depends on — such as schemas, message brokers, databases, APIs, cloud services, and any other external system your application needs.

IMAP/SMTP email for AI agents -- read, send, organize folders, and manage attachments across multiple accounts, with auto-discovery.

Composite MCP server for Godot Engine -- 17 composite tools for AI-assisted game development.

Telegram for AI agents -- messages, chats, media, and contacts across both bot and full user-account modes.

Open-source MCP server for AI agents: web search, content extraction, and library docs -- 5-strategy scraping, runs without API keys.

Open-source MCP server for AI agents: web search, content extraction, and library docs -- 5-strategy scraping, runs without API keys.

Snowplow event tracker for client-side and server-side JavaScript. Add analytics to your websites, web apps and servers.

The Semantic Agent Governance Platform

Beautiful, open source, WebGPU-based charting library

An enterprise AI workspace for model routing, multimodal chat, files, tools, billing, identity, and operations.

Drop-in visual feedback widget for websites. Pin comments directly on page elements — Shadow DOM isolated, framework-agnostic.

Sync-in · Sovereign platform for file storage, sharing, synchronization, and collaboration.

Open-source AEO (Answer Engine Optimization) infrastructure — every page, dual-marked. Markdown twins for AI agents alongside HTML for humans, picked by HTTP content negotiation.

IM Chat, High-performance, scalable, self-hosted instant messaging server in Go — private chat, groups, chatrooms, WebSocket and REST APIs.

The One Dashboard every Voice Agent needs

Open-source Terraform Enterprise replacement

MediaCMS is a modern, fully featured open source video and media CMS, written in Python/Django and React, featuring a REST API.

Multicamera Calibration for Motion Capture Workflows

Shared foundation for building MCP servers -- Streamable HTTP transport, OAuth 2.1, browser-based credential setup, and a shared embedding daemon.

Securely and anonymously share files, host websites, and chat with friends using the Tor network

🍴 OpenNutriTracker is a free and open source calorie tracker with a focus on simplicity and privacy.

An open source React Native app for smart villages merging regional offers and services in one place - in your pocket.

Drop-in Prometheus / Loki / Tempo HTTP gateway for ClickHouse. Translate PromQL, LogQL, and TraceQL into optimized CH SQL — keep Grafana, swap the backend.

🎮 Open-source, cross-platform 2D/3D/multiplayer game engine designed for everyone.

🔥🔥🔥 Open source Reverse ETL - alternative to hightouch and census.

Beautiful Open-Source Form Builder

SonarQube C++ Community plugin (cxx plugin): This plugin adds C++ support to SonarQube with the focus on integration of existing C++ tools.

Expose local http, tcp or websocket connections to the public internet

Open source community health analytics at fleet scale — the Go successor to Augur. CHAOSS metrics, contributor analytics, SBOMs, and vulnerability scanning for GitHub and GitLab. Live at aveloxis.io