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Self-Hosted Developer Tools AI Low-Code Workflow Automation Integration Platform Agent Builder

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Last Updated: 08-23-2026 07:35 AM (UTC)

Sim Studio

Sim Studio lets teams build, deploy, and monitor AI agent workflows by dragging blocks onto a visual canvas and wiring them into executable pipelines, backed by over 1,000 integrations. The React Flow editor represents each step as a node: LLM calls, tool invocations, conditional branches, and data transformations form directed acyclic graphs that run as complete agent pipelines. Every major LLM provider works natively, including OpenAI, Anthropic, Google Gemini, Groq, and Cerebras, plus local models through Ollama and vLLM. Integrations span Gmail, Slack, Microsoft Teams, Telegram, WhatsApp, Notion, Google Workspace, Airtable, GitHub, Jira, Linear, Perplexity, Firecrawl, PostgreSQL, Supabase, Pinecone, and Qdrant. Built-in tables provide a database layer, a file store offers shared team storage, and knowledge bases powered by PostgreSQL with pgvector enable retrieval-augmented generation. Finished workflows deploy as REST API endpoints, scheduled jobs, or Slack bots, with block-by-block execution traces for full observability. Real-time collaborative editing via Socket.io supports simultaneous multi-user construction. Alternatively, describe agent behavior in natural language and Sim assembles the workflow automatically. Built on Next.js App Router, Bun runtime, Drizzle ORM, and Tailwind CSS. 29,400+ GitHub stars and 100,000+ builders. Apache-2.0 licensed.

Sim Studio
Sim Studio
Sim Studio
Sim Studio
Sim Studio

Benefits

  • Visual Drag-and-Drop Workflow Builder
  • React Flow-powered canvas lets you connect LLM calls, tools, conditionals, and data transformations into executable agent pipelines without writing code.
  • 1,000+ Native Integrations
  • Connect Gmail, Slack, Notion, GitHub, Jira, Google Workspace, Airtable, Supabase, Pinecone, and hundreds more services with custom MCP protocol connections for extensibility.
  • Multi-Model LLM Flexibility
  • Use OpenAI, Anthropic, Google Gemini, Groq, Cerebras, and local models via Ollama or vLLM with provider switching within a single workflow.
  • Full Observability and Deployment
  • Deploy workflows as REST APIs, scheduled jobs, or Slack bots with block-by-block execution traces, run logs, and real-time monitoring dashboards.

Features

  • Workflow Canvas Editor
  • Drag-and-drop visual builder using React Flow for constructing agent logic as directed acyclic graphs with instant preview and testing.
  • Chat-Based Agent Creation
  • Describe agent behavior in natural language and Sim assembles the workflow automatically, editing resources conversationally.
  • Built-In Knowledge Base
  • PostgreSQL with pgvector powers retrieval-augmented generation, letting agents search files, documents, and structured table data.
  • Real-Time Collaboration
  • Socket.io enables simultaneous multi-user workflow editing with live cursors and instant synchronization across team members.
  • API and Webhook Deployment
  • Expose workflows as REST endpoints callable by any system, triggered by webhooks, cron schedules, or Slack bot interactions.