8 Best ChatDev Alternatives in 2026 (Open Source)
ChatDev 2.0: Dev All through LLM-powered Multi-Agent Collaboration. Pioneered the virtual software company paradigm with role-based agents — v2.0 evolved into a general-purpose zero-code multi-agent platform
Short answer
- Closest match to ChatDev: crewAI.
- Most actively developed: OpenHands (668 commits in the last 90 days).
- Fastest growing: OpenHands (+3,150 GitHub stars in the last 30 days).
- No commit in 6+ months: MetaGPT and Devika.
These 8 open-source tools do the same job. They are ordered by how closely they match ChatDev, with live GitHub data so you can see which projects are actively maintained.
By package downloads LangGraph is the most used here (43.7M in the last 30 days), even though OpenHands has the most GitHub stars. See all agent tools by downloads.
| Tool | GitHub stars | Stars / 30d | Last commit | Downloads / 30d |
|---|---|---|---|---|
| ChatDev(original) | 34.4k | +402 | 2026-07-24 | — |
| crewAI | 59.3k | +1,886 | 2026-10-03 | 2.4M |
| LangGraph | 42.7k | +2,365 | 2026-10-02 | 43.7M |
| CAMEL | 17.8k | +205 | 2026-09-30 | 42.8K |
| MetaGPT | 70.7k | +696 | 2026-01-21 | — |
| Langroid | 4.1k | +27 | 2026-10-02 | — |
| Devika | 19.6k | +9 | 2025-09-25 | — |
| OpenHands | 89.8k | +3,150 | 2026-10-02 | 17.1K |
| DevOpsGPT | 6.0k | 0 | 2026-09-18 | — |
1. crewAI
Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.
What sets it apart: Unlike LangGraph (low-level graph orchestration requiring LangChain), CrewAI is a standalone high-level framework where you define agent roles and goals — the simplest path from idea to production multi-agent system
Best for: Teams building multi-agent systems with role-based collaboration (researcher, writer, reviewer); Enterprises wanting a standalone framework without LangChain dependency
2. LangGraph
Build resilient language agents as graphs.
What sets it apart: Unlike CrewAI (high-level role-based crews), LangGraph provides low-level graph-based orchestration with durable execution and memory — trusted by Klarna, Replit, and Elastic for production stateful agents
Best for: Teams building long-running stateful agents that need durable execution and human-in-the-loop; LangChain ecosystem users wanting production-grade agent orchestration with LangSmith observability
3. CAMEL
🐫 CAMEL: The first and the best multi-agent framework. Finding the Scaling Law of Agents. https://www.camel-ai.org
What sets it apart: Purpose-built for studying agent scaling laws with million-agent simulation support — vs other frameworks focused on practical deployment
Best for: Research on multi-agent collaboration and emergent behaviors; Synthetic data generation for model training
4. MetaGPT
🌟 The Multi-Agent Framework: First AI Software Company, Towards Natural Language Programming
What sets it apart: vs AutoGen/CrewAI: models entire software company with role-based SOPs (PM→Architect→Engineer), producing not just code but docs, API specs, and data structures
Best for: Automated software project generation from requirements; Research on multi-agent collaboration and SOP-driven workflows
5. Langroid
Harness LLMs with Multi-Agent Programming
What sets it apart: vs LangChain/CrewAI: Actor-model-inspired multi-agent framework from CMU/UW-Madison researchers, praised for intuitive Agent-Task abstractions, lightweight design, and production use at companies like Nullify - no dependency on LangChain
Best for: Building multi-agent systems with clean Agent-Task abstractions; Teams wanting an intuitive, lightweight alternative to LangChain; Research applications with complex agent collaboration patterns
6. Devika
Devika is the first open-source implementation of an Agentic Software Engineer. Initially started as an open-source alternative to Devin.
What sets it apart: vs Devin / SWE-Agent: open-source AI software engineer with multi-LLM support (6+ providers including local Ollama) and visual state tracking — the most popular open-source Devin alternative
Best for: Developers wanting an open-source Devin alternative for AI-assisted coding; Multi-LLM experimentation with AI software engineering tasks; Teams exploring autonomous code generation with human oversight
7. OpenHands
🙌 OpenHands: AI-Driven Development
What sets it apart: Unlike Claude Code and Codex (single-model CLI tools), OpenHands is model-agnostic with the highest SWE-Bench score (77.6%) and offers SDK, CLI, GUI, and enterprise deployment — a full-stack autonomous developer platform
Best for: Engineering teams wanting an autonomous coding agent that can resolve real GitHub issues end-to-end; Enterprises needing self-hosted AI developer tools with Jira/Slack integration
8. DevOpsGPT
Multi-agent system combining LLMs with DevOps tools to turn natural language requirements into software
What sets it apart: vs GPT-Engineer / Devin: end-to-end DevOps integration from requirements → code → CI/CD → deployment — not just code generation but full software delivery pipeline automation
Best for: Teams wanting to automate software development from natural language specs; Rapid prototyping of APIs and web services from requirements; Organizations exploring AI-driven DevOps workflows
FAQ
- What are the best alternatives to ChatDev?
- The closest open-source alternatives to ChatDev are crewAI, LangGraph and CAMEL, followed by MetaGPT, Langroid and Devika. They are ranked by how closely they match what ChatDev does.
- Which ChatDev alternative is the most popular?
- OpenHands has the most GitHub stars among ChatDev alternatives, with 89,849 stars.
- Which ChatDev alternative is the most actively maintained?
- By recent activity, OpenHands (668 commits in the last 90 days) is the most actively developed alternative.
Maintain ChatDev or one of these alternatives?
Each tool page has a maintainer box: a README badge with your live rank and stars, or a homepage feature for $49 / 7 days.