Open Source Claude Alternatives

Find open-source Claude alternatives for AI writing, summaries & chats! Avoid vendor lock-in & protect your data privacy with these powerful, free options.

18 alternatives available

Claude is a sophisticated AI assistant designed to help users write, edit, and analyze content with human-like fluency. It excels at processing long documents, summarizing complex information, and generating high-quality text for emails, reports, and creative projects. Users rely on Claude for its advanced reasoning capabilities, contextual understanding, and ability to maintain coherent conversations over extended interactions.

Many users seek open source alternatives to Claude due to concerns about vendor lock-in, data privacy, and the desire for full control over their AI models. While Claude offers a polished, user-friendly interface, its proprietary nature limits customization, transparency, and offline usage. Open source alternatives provide the same core functionality—text generation, summarization, and conversational AI—while allowing users to self-host, audit, and modify the underlying models to suit their specific needs and ethical standards.

Open Source Alternatives

Python
34%
Other
89

Open WebUI

126,038

The extensible, privacy-first AI platform that runs Ollama, OpenAI, and any LLM backend behind a polished, feature-packed web interface.

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Open WebUI

Other
17,841
Forks
298
Issues
2.7 years
Age
Built with
Python34%
Svelte32%
JavaScript26%
Updated 3 months ago
C++
52%
MIT
52

GPT4All

77,202

Run large language models privately on your laptop — no GPU, no cloud, no data leaving your device.

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GPT4All

MIT
8,323
Forks
756
Issues
3.2 years
Age
Built with
C++52%
QML30%
Updated 1 years ago
JavaScript
98%
MIT
88

AnythingLLM

Developer Tools · Automation · AI Assistants

55,776

The all-in-one AI platform for private document chat, no-code agents, and local LLMs with zero setup friction.

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AnythingLLM

MIT
6,032
Forks
302
Issues
3 years
Age
Built with
JavaScript98%
Updated 3 months ago
TypeScript
67%
Other
87

Jan

40,868

Run LLMs 100% locally with full privacy, or connect to cloud AI — your machine, your data, your control.

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Jan

Other
2,552
Forks
260
Issues
2.8 years
Age
Built with
TypeScript67%
Rust27%
Updated 3 months ago
TypeScript
70%
MIT
92

LibreChat

Developer Tools · AI Assistants

34,410

Unite every major AI model in one self-hosted chat platform with agents, code execution, MCP tools, and enterprise authentication.

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LibreChat

MIT
6,946
Forks
431
Issues
3.4 years
Age
Built with
TypeScript70%
JavaScript29%
Updated 3 months ago
JavaScript
86%
AGPL 3.0
89

SillyTavern

24,001

The power-user LLM frontend that unifies dozens of AI backends with a rich scripting engine, immersive Visual Novel mode, and a thriving extension ecosystem.

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SillyTavern

AGPL 3.0
4,857
Forks
376
Issues
3.4 years
Age
Built with
JavaScript86%
HTML10%
Updated 3 months ago
83

AionUi

AI Agents · Productivity

Free, open-source Cowork desktop app that unifies Claude Code, Codex, Gemini CLI, and 20+ AI agents into a single platform with multi-agent teams, 24/7 cron automation, and zero-config built-in agent.

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AionUi

39

autoresearch

AI Agents · AI Development

Give an AI agent a real LLM training setup and let it experiment autonomously overnight — you wake up to a log of experiments and (hopefully) a better model.

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autoresearch

82

byterover-cli

AI Agents · AI Code Assistants

A portable memory layer for AI coding agents — curate structured project knowledge into a version-controlled context tree that syncs across tools, machines, and teammates.

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byterover-cli

86

Cherry Studio

AI Assistants

All-in-one AI desktop client with 300+ assistants and multi-model support

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Cherry Studio

4,391
Forks
2.1 years
Age
Updated 4 weeks ago
83

claude-mem

AI Agents · AI Development

Give your AI coding agents persistent memory — claude-mem captures everything that happens during sessions, compresses it with AI, and surfaces the right context in every future session automatically.

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claude-mem

85

deepagents

AI Agents · AI Development

The batteries-included Python agent harness — planning, sub-agents, filesystem, shell, memory, and skills bundled in, built on LangGraph.

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deepagents

90

LobeHub

AI Assistants · Productivity · Automation

Your Chief Agent Operator — build, schedule, and collaborate with an entire AI team in one self-hostable workspace.

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LobeHub

70

NemoClaw

AI Agents · AI Development

Run AI coding agents like OpenClaw and Hermes securely inside NVIDIA OpenShell sandboxes with a hardened blueprint, routed inference, and lifecycle management through a single CLI.

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NemoClaw

83

openclaude

AI Agents · AI Code Assistants

Run Claude Code workflows against any LLM — OpenAI, Gemini, Ollama, and 200+ backends — from a single terminal-first CLI.

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openclaude

60

openwork

AI Assistants · Automation

OpenWork is a free, open-source desktop app for running AI agent workflows on your own files with 50+ LLMs, extensible skills, and MCP server support — the open-source alternative to Claude Cowork and Codex.

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openwork

185
Forks
5 months
Age
Updated 1 months ago
82

page-agent

AI Agents · Automation

Control any web interface with natural language — no browser extension, no headless browser, just a JavaScript script tag.

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page-agent

87

rowboat

AI Assistants · AI Development

Build, test, and deploy multi-agent AI workflows with a visual editor, RAG data sources, MCP tool integration, and a production-ready REST API.

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rowboat

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