8 Best Activepieces Alternatives in 2026 (Open Source)
Activepieces — Open-source AI automation platform with TypeScript pieces available as MCP servers. Largest open source MCP toolkit with 280+ pieces automatically available as MCP servers for LLM integration.
Short answer
- Closest match to Activepieces: Kestra.
- Most actively developed: Mastra (4,109 commits in the last 90 days).
- Fastest growing: n8n (+3,978 GitHub stars in the last 30 days).
- No commit in 6+ months: AgentPilot.
These 8 open-source tools do the same job. They are ordered by how closely they match Activepieces, with live GitHub data so you can see which projects are actively maintained.
By package downloads Agent Development Kit (ADK) is the most used here (9.9M in the last 30 days), even though n8n has the most GitHub stars. See all agent tools by downloads.
| Tool | GitHub stars | Stars / 30d | Last commit | Downloads / 30d |
|---|---|---|---|---|
| Activepieces(original) | 24.9k | +550 | 2026-10-01 | — |
| Kestra | 28.9k | +3,540 | 2026-10-03 | — |
| n8n | 206.5k | +3,978 | 2026-10-03 | 384.9K |
| AgentPilot | 569 | +5 | 2025-05-15 | 17 |
| Langflow | 155.5k | +1,446 | 2026-10-01 | 40.1K |
| voltagent | 10.7k | +579 | 2026-09-28 | 125.1K |
| Flock | 1.1k | +4 | 2026-07-06 | — |
| Mastra | 28.5k | +968 | 2026-10-03 | 3.1M |
| Agent Development Kit (ADK) | 21.7k | +80 | 2026-10-03 | 9.9M |
1. Kestra
Event Driven Orchestration & Scheduling Platform for Mission Critical Applications
What sets it apart: Combines traditional workflow orchestration with AI-native features including built-in MCP server and AI agent task types.
Best for: Orchestrating AI agent workflows; Building RAG pipelines; Integrating AI agents with MCP tools
2. n8n
Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
What sets it apart: Unlike Zapier (pure no-code, closed-source), n8n combines visual workflow building with inline JavaScript/Python code and self-hosting, making it the go-to for technical teams who need both flexibility and control
Best for: Technical teams building AI-powered workflow automations with visual + code flexibility; Enterprises needing self-hosted automation with SSO and air-gapped deployment
3. AgentPilot
A versatile workflow automation platform to create, organize, and execute AI workflows, from a single LLM to complex AI-driven workflows.
What sets it apart: vs ChatGPT/Claude desktop: local multi-agent workflow builder with graph-based design, 20+ LLM providers via LiteLLM, branching chats, and built-in multi-language code interpreter
Best for: Power users building complex multi-agent workflows on desktop; Developers wanting visual graph-based agent orchestration with code execution
4. Langflow
Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
What sets it apart: Best visual builder for LLM workflows with direct MCP server deployment — more production-ready than Flowise with API-first architecture
Best for: Rapid prototyping of AI agent workflows with visual builder; Non-developers building LLM applications without coding
5. voltagent
AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework
What sets it apart: Full-stack TypeScript agent platform with built-in workflow engine, voice support, and observability console — more opinionated than Vercel AI SDK, more TypeScript-native than LangChain
Best for: TypeScript developers building production agent systems with observability; Multi-agent systems with workflow orchestration and voice capabilities
6. Flock
Desktop multi-agent harness with visual workflows, built with Rust, Tauri, React, and langgraph-rust
What sets it apart: vs Dify/Flowise: native human-in-the-loop approval, subgraph nodes for modular reuse, and MCP protocol support for flexible tool integration
Best for: Teams building conversational AI with visual workflow design; Organizations needing human-in-the-loop agent workflows
7. Mastra
From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.
What sets it apart: Unlike LangChain (Python-first, complex abstraction) or CrewAI (Python multi-agent), Mastra is purpose-built for TypeScript with native Next.js/React integration, graph-based workflows with .then()/.branch()/.parallel() syntax, and built-in evals — making it the most natural choice for JS/TS production agent development.
Best for: TypeScript/Node.js teams building production AI agents with React/Next.js frontends; Developers who want agent workflows with human-in-the-loop approval built into their existing JS stack
8. Agent Development Kit (ADK)
An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
What sets it apart: Applies software development principles and a graph-based runtime to AI agent creation for deterministic execution flows.
Best for: Developers seeking a code-first Python framework; Building complex, orchestrated agent workflows; Teams needing modular and testable agent systems
FAQ
- What are the best alternatives to Activepieces?
- The closest open-source alternatives to Activepieces are Kestra, n8n and AgentPilot, followed by Langflow, voltagent and Flock. They are ranked by how closely they match what Activepieces does.
- Which Activepieces alternative is the most popular?
- n8n has the most GitHub stars among Activepieces alternatives, with 206,548 stars.
- Which Activepieces alternative is the most actively maintained?
- By recent activity, Mastra (4,109 commits in the last 90 days) is the most actively developed alternative.
Maintain Activepieces or one of these alternatives?
Each tool page has a maintainer box: a README badge with your live rank and stars, or a homepage + category feature for $49 / 7 days.
Activepieces · Kestra · n8n · AgentPilot · Langflow · voltagent