Top Open Source Projects using Anthropic

A curated collection of the 96 best open source software using Anthropic. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

OpenClaw

An open source AI assistant that runs on your own hardware and reaches you through Discord, Slack, WhatsApp and other chat channels.

Alternative to:

ChatGPT

An AI assistant that acts, not just answers

Stars
389,062
Forks
81,758
Last commit
5 days ago

OpenCode

An open source AI coding agent for the terminal, with a beta desktop build and installs through every major package manager.

Alternative to:

Cursor

AI coding agent for terminal, IDE, and desktop

Stars
205,329

Firecrawl

A web data API that searches, scrapes and crawls sites, returning clean markdown or structured JSON that AI agents can consume directly.

Alternative to:

Bright Data

Turn any website into clean, AI-ready data via API

Stars
177,318

pi

A self-extensible terminal coding agent published as TypeScript packages covering the agent runtime, a multi-provider LLM API and a terminal UI.

Alternative to:

GitHub Copilot

Minimal terminal coding agent you can fully customize

Stars
102,470

Paperclip

A self-hosted control plane that gives teams of AI agents an org chart, budgets, approvals and audit trails from one dashboard.

Alternative to:

Lindy

Org chart, budgets, and governance for AI agent teams

LobeChat

Open source workspace for hiring, scheduling and supervising a team of AI agents that keeps working while you are away.

Alternative to:

ChatGPT

Manage, build, and run AI agent teams around the clock

Stars
82,296

Cline

Open source coding agent that works in VS Code, JetBrains IDEs, the terminal and a kanban board, with any model you choose.

Alternative to:

Cursor

Open-source AI coding agent for your editor and terminal

Stars
67,589

AnythingLLM

An all-in-one AI application for chatting with your own documents, running agents and serving multiple users from a private instance.

Alternative to:

ChatGPT

Chat with your documents using any LLM, fully private

Stars
65,736

Mem0

A memory layer that lets AI assistants and agents remember user preferences and past sessions instead of restarting context every conversation.

Alternative to:

Supermemory

Persistent memory layer for AI agents and apps

Stars
64,804

LiteLLM

An open source gateway exposing more than a hundred LLM providers behind one OpenAI-compatible interface, for teams centralising model access.

Alternative to:

Cloudflare AI Gateway

LLM gateway for auth, load balancing, and spend tracking

Stars

Twenty

A CRM whose objects, views and workflows are defined as code, aimed at technical teams that outgrow configurable SaaS tools.

Alternative to:

HubSpot

Build a custom CRM without the proprietary lock-in

Stars
56,365

Cherry Studio

A cross-platform desktop client for running many LLM providers and local models side by side, with assistants, documents and MCP support.

Alternative to:

ChatGPT

Multi-model AI desktop client with local-first privacy

Stars

Ghost

A headless Node.js CMS for professional, independent publishing, installed through its own CLI and run on your server or hosted.

Alternative to:

Kajabi

Publishing platform for blogs, newsletters, and paid memberships

Stars
55,191

NanoClaw

A personal AI assistant that runs each agent in its own container and reaches you through Slack, Telegram, Discord or WhatsApp.

Alternative to:

ChatGPT

Personal AI agent for messaging apps, containerized

Puter

A self-hostable desktop environment in the browser, with everyday apps for users and cloud, AI and storage APIs for developers.

Alternative to:

Dropbox

A full desktop environment that runs in your browser

Stars
43,424

Bruno

An offline API client that stores collections as plain text files in your repository, so Git handles versioning and team sharing.

Alternative to:

Postman

Lightweight, fast, and open-source API client for developers

Stars
46,791

Tldraw

A React SDK for building infinite canvas apps, shipping a whiteboard out of the box and custom shapes when you need them.

Alternative to:

Miro

Free instant whiteboard with real-time collaboration

Stars
50,179

Jan

Desktop app for downloading and running open source LLMs locally, with optional cloud model access and an OpenAI compatible local server.

Alternative to:

ChatGPT

Run AI models locally or connect to cloud, privately

Stars
44,366

Payload

Next.js native headless CMS that installs into an existing app folder, giving developers a TypeScript backend and an extensible React admin.

Alternative to:

Contentful

Headless CMS for developers, built with Node.js

Stars
44,601

ToolJet

Open source platform for building internal tools, admin panels and dashboards on top of existing databases, APIs and SaaS systems.

Alternative to:

Retool

Build internal tools rapidly without coding

Stars
40,858

Dokploy

Self-hostable platform as a service that deploys applications and databases on your own VPS, with Docker Swarm and Traefik underneath.

Alternative to:

Vercel

Effortless deployment and management for any VPS

Stars
37,131

CopilotKit

SDK for developers building agent-native apps, adding chat, generative UI, shared state and human-in-the-loop across web, mobile and chat platforms.

Alternative to:

Voiceflow

Build AI copilots for your product in hours, not months

Stars

Continue

Coding agent for VS Code, JetBrains and the terminal, now shipped as a final version and no longer under active development.

Alternative to:

Cursor

Open-source coding agent for your IDE and terminal

Stars
35,812

Novu

Open-source communication infrastructure that sends product notifications and connects agents to Inbox, email, SMS, push, chat and messaging channels.

Alternative to:

OneSignal

Multi-channel notification infrastructure for apps

Stars
39,876

PostHog

Product analytics suite bundling events, session replays, feature flags, experiments, surveys and error tracking into one platform for product teams.

Alternative to:

Google Analytics

Unlock Product Insights with Open-Source Analytics

Stars

Langfuse

LLM engineering platform where teams trace, evaluate, debug and version-control the prompts and runs behind an AI application.

Alternative to:

LangSmith

Open source LLM engineering platform for AI-powered applications

Stars
34,268

Kilo

Open source AI coding agent for VS Code, JetBrains and the terminal, with 500 plus models billed at provider rates.

Alternative to:

Cursor

AI coding agent for VS Code, JetBrains, CLI, and Cloud

Stars
27,201

Better Auth

Framework-agnostic authentication and authorization library for TypeScript, for developers who need more than a login form without paying a vendor.

Alternative to:

Auth0

Framework-agnostic authentication for TypeScript applications

Stars

Directus

A backend that wraps any SQL database with instant REST and GraphQL APIs plus a visual studio for non-technical teammates.

Alternative to:

Contentful

Open-source data platform for effortless content management

Stars
37,786

Infisical

Secret management platform for engineering teams, reaching into certificates, key management and privileged access from one self-hostable place.

Alternative to:

AWS Secrets Manager

Secure secret management for modern development teams

Stars

ActivePieces

Extensible automation platform and Zapier replacement where every integration is a typed TypeScript package that doubles as an MCP server.

Alternative to:

Zapier

Automate workflows with no-code integration platform

Stars
24,300

Dyad

Local AI app builder that runs on your own machine with your own model keys, for developers avoiding hosted prompt-to-app tools.

Alternative to:

Build unlimited AI apps locally with zero vendor lock-in

Stars
21,389

Suna

Open source AI management system where agents, skills, memory and connectors live in a git repository your company owns.

Alternative to:

ChatGPT

AI agent that autonomously handles real-world tasks

Stars
20,177

Tolaria

Desktop app for markdown knowledge bases where every vault is a git repository, for note takers who want plain files.

Alternative to:

Notion

Local-first, Git-native personal knowledge base with AI

Stars
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Top Open Source Projects using Anthropic

A curated collection of the 96 best open source software using Anthropic. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

OpenClaw

OpenCode

Firecrawl

pi

Paperclip

LobeChat

Cline

AnythingLLM

Mem0

LiteLLM

Twenty

Cherry Studio

Ghost

NanoClaw

Puter

Bruno

Tldraw

Jan

Payload

ToolJet

Dokploy

CopilotKit

Continue

Novu

PostHog

Langfuse

Kilo

Better Auth

Directus

Infisical

ActivePieces

Dyad

Suna

Tolaria

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