• Picks
  • Discover
  • Alternatives
  • About

© 2026 Willet

  • Newsletter
  • About
  • FAQ
  • Terms
  • Privacy & Cookies
Join the Discord (opens in a new tab)
Sim avatar

Sim

Visual workspace for building, running, and monitoring AI agent workflows

  • Agent frameworks and tools
  • Self-hosted alternatives
View on GitHub
Website

What it is

Sim is a web workspace where you assemble AI agents and automated workflows on a visual canvas, through chat, or in code, wiring them to hundreds of integrations such as Slack, Notion, and Salesforce and to the major LLM providers. It also includes built-in tables, file storage, and knowledge bases that agents can search, plus logs, schedules, and run monitoring. Teams can use the hosted service or deploy it on their own servers with Docker Compose or Kubernetes, and a macOS desktop app and MCP server are available for working with it from other tools.

Images

Facts

Stars
29,852 GitHub stars.
29,852

Forks
3,861
Commits
8,410
Contributors
53
Language
TypeScript
License
Apache-2.0
Last commit
Oct 20, 2026
On GitHub since
January 2025
First release
September 2025
Platforms
web, macOS, self-hosted
Self-hostable
Yes
Alternative to
Zapier, n8n Cloud, Make
Tags
  • workflow-automation
  • mcp-server
  • low-code
  • ai-agents
  • knowledge-base
  • rag

Last synced from GitHub on Oct 20, 2026

The 10 best overlooked open-source projects, every Monday.

Share and more

Comments

No comments yet. Start the conversation.

Similar projects

  • Langflow avatar

    Langflow

    Visual node editor for building and serving LLM agents and workflows

    156k
  • OpenBMB avatar

    ChatDev

    Zero-code platform for configuring and running multi-agent LLM workflows

    34.6k
  • Langflow avatar

    OpenRAG

    Self-hosted document search and chat built on Langflow and OpenSearch

    4.7k

What people are saying

Updated Oct 21, 2026
  • Hacker NewsShow HN: Sim – Apache-2.0 n8n alternativeDec 11, 2025 · 240 points · 61 comments (opens Hacker News in a new tab)
  • Bluesky“Delve faces new allegations that it violated the open source license of its customer, Sim.ai, by taking the customers's tool and passing it off as its own.”Apr 1, 2026 · 6 likes · 3 replies (opens Bluesky in a new tab)
  • Bluesky“wire up an ai agent visually. Sim: open-source canvas to build, deploy and run AI agents. 1,000+ integrations, any LLM, self-host free. canvas or code for you?”Jul 27, 2026 · 3 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“"how do i actually execute ai workflows without losing my mind to vendor lock-in" — landed on SimCockpit at 3am. turns out sandboxed execution + actual…”Sep 25, 2026 · 1 like · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Sim.ai, Gingko Writer and Letta Code might soon make the list”May 5, 2026 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“simstudioai/sim Build, deploy, and orchestrate AI agents. Sim is the central intelligence layer for your AI workforce. The open-source platform to build AI…”May 2, 2026 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“💻 YC-backed Delve loses accelerator support amid compliance scandal: forked open-source tool from customer Sim.ai, lied about building it themselves, faces…”Apr 4, 2026 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“GitHub Repository:”Jan 12, 2026 · 0 likes · 0 replies (opens Bluesky in a new tab)
  • Bluesky“Yesterday's significant domain sales: sim.ai - $220,000 msl.ai - $50,000 meditative.ai - $24,299 sexdollgenie.com - $18,500 mrbrowser.com - $5,299 xpack.com…”Jul 23, 2025 · 0 likes · 0 replies (opens Bluesky in a new tab)