ChatGPT GitHub Repositories (2026) · Open Source Tools

An event-driven WebMCP watch-along for Codex and ChatGPT.

Use LLMs and LLM Vision (OCR) to handle paperless-ngx - Document Digitalization powered by AI

Native Android & iOS client for LibreChat, built with Kotlin Multiplatform and Compose Multiplatform

Open-source AI Search Intelligence Platform — track, analyze, and improve AI visibility, citations, prompts, competitors, and content opportunities across ChatGPT, Claude, Gemini, Google AI Overviews, Google AI Mode, Perplexity, Grok, and Microsoft Copilot.

🔓 Free open-source AI text humanizer — bypass GPTZero, Turnitin & AI detectors with 16+ Languages support. 35 providers, 4 rewrite levels, 6 Writing Styles, 9 Text Purposes, 13 Tone Presets, multi-pass ninja mode. No login. Built for students & writers.

ThunderAI is a Thunderbird Addon that uses the capabilities of ChatGPT, Gemini, Claude or Ollama to enhance email management.

A Fork of Rikkahub with an overhauled UI and feature additions

Building blocks for frontier OpenAI agents in Rust. Nanocodex empowers you with Codex-level performance anywhere.

Lightweight Agent Workstation for Codex + Claude code — with dots, task scheduler, git worktree & remote control

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.

Run agents in Obsidian - OpenCode, Codex, Claude Code etc.

A sample app for the Retrieval-Augmented Generation pattern running in Azure, using Azure AI Search for retrieval and Azure OpenAI large language models to power ChatGPT-style and Q&A experiences.

🐬DeepChat - A smart assistant that connects powerful AI to your personal world

This repository contains a hand-curated resources for Prompt Engineering with a focus on Generative Pre-trained Transformer (GPT), ChatGPT, PaLM etc

Open-source, self-hosted AI agent workspace and alternative to OpenAI Dots, Meta Muse, Grok Bot, Instinct, Manus Cue, Claude Cowork, and ChatGPT agent. MIT-licensed; includes chat, connectors, approvals, and optional computer use. Early prototype.

Open-source MCP server for LinkedIn. Give Claude and any MCP-compatible AI agent access to profiles, companies, jobs, and messages.

🍙 A personal AI agent & local memory hub for all AI agents, gives every AI one shared, fully controlled memory and persistent context — all AI remember the same you. Now supports Claude Code, Codex, OpenClaw and Hermes Agent etc.

Webchat to API

🏆 An awe-inspiring collection of resources, encompassing a wide range of tools, documents, resources, applications, and use cases related to ChatGPT.

Intelligent cloud testing made easy.