# Sim alternatives

> Looking for an alternative to Sim? Below are the workflow & productivity in our index that do a similar job — open-source options are ranked by real maintained adoption (GitHub stars and recent commit activity), never by sponsorship. Sim is open source, so the list below includes both other self-hostable projects and commercial products.

Sim's own profile notes it may not be the right fit if you can't run Docker and Node.js 20 or later; self-hosting requires both. If that's you, the options below are worth comparing.

Browse on the web: https://agentsearchengine.app/alternatives/sim

## Commercial alternatives (alphabetical — stars don't measure commercial adoption)

- [Beam AI](https://agentsearchengine.app/agents/beam-ai) — Agentic process automation platform for self-learning AI agents. · Paid product · Platform
  - **vs Sim:** Beam AI is a commercial product; Sim is open-source and self-hostable.
- [Dust](https://agentsearchengine.app/agents/dust) — Custom AI agents connected to your company knowledge and tools. · Paid product · Platform
  - **vs Sim:** Dust is a commercial product; Sim is open-source and self-hostable.
- [Gumloop](https://agentsearchengine.app/agents/gumloop) — No-code platform for building AI-powered workflow automations. · Freemium · Platform · best for no-code ai workflow automation with a visual canvas
  - **vs Sim:** Gumloop is a commercial product; Sim is open-source and self-hostable.
- [Lindy](https://agentsearchengine.app/agents/lindy) — Build AI agents that handle email, scheduling, and business workflows in minutes. · Freemium · Platform · best for business users delegating email, scheduling, and crm workflows to no-code agents
  - **vs Sim:** Lindy is a commercial product; Sim is open-source and self-hostable.

## Open-source alternatives (ranked by adoption)

1. [n8n](https://agentsearchengine.app/agents/n8n) — Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations. · Open source · Platform · 206k★ · TypeScript · active today · best for self-hostable workflow automation with native ai agent nodes and 400+ integrations
   - **vs Sim:** Best for self-hostable workflow automation with native AI agent nodes and 400+ integrations.
2. [dify](https://agentsearchengine.app/agents/dify) — Production-ready platform for agentic workflow development. · Open source · Platform · 157k★ · TypeScript · active today · best for teams building llm apps with a visual builder, rag pipelines, and agent workflows
   - **vs Sim:** Best for teams building LLM apps with a visual builder, RAG pipelines, and agent workflows.
3. [Langflow](https://agentsearchengine.app/agents/langflow) — A visual builder for AI agents and workflows that deploys each flow as an API or an MCP server. · Open source · Platform · 155k★ · Python · MIT · active today · best for teams that want to prototype agent workflows visually and ship them as an api or mcp tool
   - **vs Sim:** Sim is written primarily in TypeScript; Langflow in Python.
4. [activepieces](https://agentsearchengine.app/agents/activepieces) — AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agents · Open source · Platform · 25k★ · TypeScript · active today · best for self-hosted zapier-style automation extensible with type-safe typescript pieces
   - **vs Sim:** Best for self-hosted Zapier-style automation extensible with type-safe TypeScript pieces.
5. [Temporal](https://agentsearchengine.app/agents/temporal) — An open-source durable execution platform that makes long-running workflows, including agents, resilient to failure. · Open source · Platform · 23k★ · Go · MIT · active today · best for agent and workflow systems that must pause, resume and recover across failures and long waits
   - **vs Sim:** Sim is written primarily in TypeScript; Temporal in Go.
6. [coze-studio](https://agentsearchengine.app/agents/coze-studio) — An AI agent development platform with all-in-one visual tools, simplifying agent creation, debugging, and deployment like never before. Coze your way to AI Agent creation. · Open source · Platform · 22k★ · TypeScript · Apache-2.0 · active 1 month ago · best for all-in-one agent development covering prompts, rag, plugins, and workflows
   - **vs Sim:** Best for all-in-one agent development covering prompts, RAG, plugins, and workflows.

Showing the 10 closest of 26 workflow & productivity indexed here. Complete list: https://agentsearchengine.app/category/workflow-agents

## FAQ

**What is the best alternative to Sim?**
It depends on whether you'd rather self-host or buy a managed product. n8n is the most widely-adopted open-source alternative (206k GitHub stars); Beam AI is one of the commercial options. Compare the full list above on adoption, license, and pricing.

**Is there a free or open-source alternative to Sim?**
Yes. n8n, dify, and Langflow are open-source workflow & productivity you can self-host for free — you still pay for the infrastructure you run them on and any model or API usage. See the ranked open-source list above.

**How are these Sim alternatives ranked?**
Every product in the workflow & productivity category is a candidate. Open-source alternatives are ranked by maintained adoption — GitHub stars plus recent commit activity — so you see what's genuinely used, not abandoned. Commercial products are listed separately and alphabetically, because stars don't measure commercial adoption. Sponsored placement is always labeled and never affects the ranking.

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Source: [Agent Search Engine](https://agentsearchengine.app) — https://agentsearchengine.app/alternatives/sim