Open Source Projects using Anthropic
A curated collection of the 118 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.
Automate workflows with no-code integration platform
Stars
25,061Last commit
4 hours agoLicense
MIT
Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.
Open Source Alternative to:
Visual React editor with real-time code updates
Stars
26,919Last commit
2 months agoLicense
Apache-2.0
Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.
Open Source Alternative to:
Branded short links with analytics and conversion tracking
Stars
24,898Last commit
4 hours agoLicense
AGPL-3.0
Link management platform for marketing teams with custom domains, UTM builder, A/B testing, geo-targeting, QR codes, and real-time conversion analytics.
Open Source Alternative to:
Affiliate marketing platform built for SaaS companies
Stars
24,898Last commit
4 hours agoLicense
AGPL-3.0
Run affiliate, influencer, and referral programs with flexible reward structures, real-time attribution, and automated global payouts.
Open Source Alternative to:
Build unlimited AI apps locally with zero vendor lock-in
Stars
21,935Last commit
1 day agoLicense
Apache-2.0
Create full-stack AI applications using any model or tool. Run entirely on your machine with complete privacy, flexibility, and control over your code.
Open Source Alternative to:
AI assistant that enhances enterprise knowledge management
Stars
22,980Last commit
10 hours agoLicense
GPL-3.0
Open-source AI solution combining RAG pipelines, workflow automation, and multi-model support for intelligent enterprise knowledge management and customer service.
Open Source Alternative to:
Automate any website workflow with AI and computer vision
Stars
23,208Last commit
23 hours agoLicense
AGPL-3.0
Transform manual browser tasks into automated workflows using AI. Handle complex forms, CAPTCHAs, 2FA, and data extraction across any website at scale.
Open Source Alternative to:
Build powerful web apps without complex coding
Stars
28,336Last commit
8 hours agoLicense
Unknown
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.
Open Source Alternative to:
Run coding agents from your phone, desktop, or terminal
Stars
20,992Last commit
4 hours agoLicense
Apache-2.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.
Open Source Alternative to:
Local-first, Git-native personal knowledge base with AI
Stars
20,085Last commit
6 hours agoLicense
AGPL-3.0
A free, open source note-taking app built on plain Markdown files, Git version control, and direct AI model integration. No account required.
Open Source Alternative to:
24/7 screen and audio recorder with AI memory search
Stars
21,954Last commit
3 hours agoLicense
Other
Records your screen and microphone locally, transcribes meetings automatically, and exposes selected work context to compatible AI assistants through its MCP server and local API.
Open Source Alternative to:
AI workforce platform where agents, skills, and memory live in your repo
Stars
20,277Last commit
3 hours agoLicense
Elastic-2.0
Manages a team of AI agents across your company, with every agent, skill, memory, and connector stored as versioned files in a git repo you own and self-host.
Open Source Alternative to:
Flexible database meets intuitive spreadsheet interface
Stars
21,893Last commit
12 hours agoLicense
AGPL-3.0
Open-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.
Open Source Alternative to:
Revolutionize your Git workflow with simultaneous branches
Stars
21,811Last commit
5 hours agoLicense
FSL-1.1-MIT
GitButler is a powerful Git client that enables seamless work on multiple branches concurrently, enhancing your existing workflow.
Open Source Alternative to:
Run dozens of AI coding agents in parallel on your machine
Stars
15,229Last commit
5 hours agoLicense
Elastic-2.0
macOS app that orchestrates multiple AI coding agents simultaneously, each in its own isolated Git worktree, so you can work on many tasks at once.
Open Source Alternative to:
Collaborative bookmark manager for teams and individuals
Stars
20,118Last commit
3 days agoLicense
AGPL-3.0
Open-source platform to collect, organize, and preserve webpages with powerful collaboration features
Open Source Alternative to:
Run long-running AI tasks without timeouts or servers
Stars
16,548Last commit
6 hours agoLicense
Apache-2.0
Open source TypeScript platform for building and deploying AI agents and background workflows with retries, queues, observability, and elastic scaling.
Open Source Alternative to:
AI agent runtime with encrypted enclaves for your secrets
Stars
12,657Last commit
3 days agoLicense
Apache-2.0
Runs AI agents inside Trusted Execution Environments on NEAR AI Cloud, keeping credentials encrypted and invisible to the model at all times.
Open Source Alternative to:
Build powerful AI agents with cutting-edge LLM technology
Stars
14,953Last commit
2 days agoLicense
MIT
A comprehensive platform for creating AI agents with intuitive tools, extensive integrations, and enterprise-grade features powered by the latest language models.
Open Source Alternative to:
Ultra-fast data transformation for AI with lineage
Stars
11,709Last commit
3 hours agoLicense
Apache-2.0
Open-source ETL framework built in Rust for AI workloads. Features incremental processing, data lineage, and observability tools for semantic search and RAG applications.
Open Source Alternative to:
Create powerful chatbots without coding
Stars
10,544Last commit
6 hours agoLicense
Unknown
Design, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.
Open Source Alternative to:
Minimalistic AI-powered search engine for instant answers
Stars
11,898Last commit
2 months agoLicense
AGPL-3.0
Scira delivers concise, AI-generated responses to queries using a clean interface and powerful search capabilities.
Open Source Alternative to:
Open-source LLM tracing & evaluation for AI optimization
Stars
11,858Last commit
3 hours agoLicense
Elastic-2.0
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
Open Source Alternative to:
AI-Powered Note Taking App
Stars
11,094Last commit
2 months agoLicense
GPL-3.0
The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.
Open Source Alternative to:
Voice-to-text that works offline, privately, on any app
Stars
9,452Last commit
4 hours agoLicense
MIT
Dictation app powered by OpenAI Whisper and NVIDIA Parakeet. Runs locally on macOS, Windows, and Linux with zero data retention and 100+ language support.
Open Source Alternative to:
Design editor that opens Figma files, runs AI, and stays local
Stars
9,023Last commit
4 hours agoLicense
MIT
A Figma-compatible design editor with built-in AI chat, headless CLI, real-time P2P collaboration, and a Vue SDK for building custom editors. No account needed.
Open Source Alternative to:
AI-powered answer engine with dynamic interface generation
Stars
9,172Last commit
23 hours agoLicense
Apache-2.0
Open-source answer engine that dynamically generates UI components while providing AI-powered responses, combining conversational AI with interactive interfaces.
Open Source Alternative to:
Modern payment infrastructure for digital products and SaaS
Stars
10,364Last commit
4 hours agoLicense
Apache-2.0
Comprehensive payment solution with built-in tax handling, automated benefits, and seamless integrations for digital product and SaaS businesses.
Open Source Alternative to:
Self-hosted enterprise agent platform with real permissions
Stars
6,515Last commit
8 hours agoLicense
MIT
Deploy AI agents inside your own infrastructure with document-grounded answers, computer use, and support for any AG-UI-compatible agent framework.
Open Source Alternative to:
Open-source cloud communications platform for developers
Stars
8,137Last commit
3 hours agoLicense
MIT
Build and deploy powerful voice and messaging applications with ease using Fonoster's flexible, scalable, and developer-friendly platform.
Open Source Alternative to:
Open-source legal AI that law firms control and extend
Stars
4,341Last commit
5 hours agoLicense
AGPL-3.0
Self-hostable alternative to Harvey and Legora with document analysis, contract drafting, tabular review, and reusable workflows. Zero licensing costs, full data control.
Open Source Alternative to:
Build reliable AI apps with comprehensive observability
Stars
6,224Last commit
6 days agoLicense
Apache-2.0
Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.
Open Source Alternative to:
Build stateful backends with in-memory actors
Stars
6,298Last commit
24 hours agoLicense
Apache-2.0
Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.
Open Source Alternative to:
Automated translations that scale with your code and commits
Stars
5,398Last commit
4 days agoLicense
Apache-2.0
Transform your app into a global product with AI-powered localization that integrates directly into your development workflow. Supports 83+ languages with Git-native automation.
Open Source Alternative to:
Open-source BI for modern data teams
Stars
6,191Last commit
8 hours agoLicense
MIT
Self-serve analytics platform that transforms dbt models into interactive dashboards, enabling data-driven decisions across organizations.
Open Source Alternative to:
Build, automate, and improve AI agents with your team
Stars
4,836Last commit
3 hours agoLicense
MIT
Open-source workspace for building and running AI agents: chat-driven development, scheduling, human-in-the-loop approvals, versioning, and tracing. Self-host or use the cloud.
Open Source Alternative to:
Simulation-based testing and evaluation for AI agents
Stars
4,958Last commit
4 hours agoLicense
Apache-2.0
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
Open Source Alternative to:
Enterprise workplace AI with data you own and control
Stars
3,837Last commit
4 hours agoLicense
Apache-2.0
Self-hostable enterprise AI platform that unifies business data across apps, powers a knowledge graph for cited answers, and lets teams build AI agents across their stack.
Open Source Alternative to:
Build reliable AI agents with unified tool integration
Stars
4,912Last commit
5 months agoLicense
Apache-2.0
Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server
Open Source Alternative to:
AI-powered platform for engineering LLM products
Stars
3,384Last commit
6 hours agoLicense
Apache-2.0
Laminar is an open-source platform that helps collect, understand, and utilize data for building high-quality LLM applications.
Open Source Alternative to:
Lightweight code editor with agents, Git, and terminal built in
Stars
3,111Last commit
5 hours agoLicense
AGPL-3.0
Open-source code editor for macOS, Windows, and Linux that puts coding agents, terminal, Git, and GitHub in a single window.
Open Source Alternative to:
One API to deploy and run agents on any model or machine
Stars
2,918Last commit
4 hours agoLicense
Apache-2.0
Production-ready agent infrastructure that handles state, machines, permissions, and history so you don't have to build the platform yourself.
Open Source Alternative to:
Stellar Hosted – Managed Open Source software hosting in the EU: secure, compliant, fast.
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