* improvement(ui): fix nav loading flash, skeleton mismatches, and React anti-patterns across resource pages - Convert knowledge, files, tables, scheduled-tasks, and home page.tsx files from async server components to simple client re-exports, eliminating the loading.tsx flash on every navigation - Add client-side permission redirects (usePermissionConfig) to knowledge, files, and tables components to replace server-side checks - Fix knowledge loading.tsx skeleton column count (6→7) and tables loading.tsx (remove phantom checkbox column) - Fix connector document live updates: use isConnectorSyncingOrPending instead of status === 'syncing' so polling activates immediately after connector creation - Remove dead chunk-switch useEffect in ChunkEditor (redundant with key prop remount) - Replace useState+useEffect debounce with useDebounce hook in document.tsx - Replace useRef+useEffect URL init with lazy useState initializers in document.tsx and logs.tsx - Make handleToggleEnabled optimistic in document.tsx (cache first, onError rollback) - Replace mutate+new Promise wrapper with mutateAsync+try/catch in base.tsx - Fix schedule-modal.tsx: replace 15-setter useEffect with useState lazy initializers + key prop remount; wrap parseCronToScheduleType in useMemo - Fix logs search: eliminate mount-only useEffect with eslint-disable by passing initialQuery to useSearchState; parse query once via shared initialParsed state - Add useWorkspaceFileRecord hook to workspace-files.ts; refactor FileViewer to self-fetch - Fix value: any → value: string in useTagSelection and collaborativeSetTagSelection - Fix knowledge-tag-filters.tsx: pass '' instead of null when filters are cleared (type safety) * fix(kb): use active scope in useWorkspaceFileRecord to share cache with useWorkspaceFiles * fix(logs,kb,tasks): lazy-init useRef for URL param, add cold-path docs to useWorkspaceFileRecord, document key remount requirement in ScheduleModal * fix(files): redirect to files list when file record not found in viewer * revert(files): remove useEffect redirect from file-viewer, keep simple null return * fix(scheduled-tasks): correct useMemo dep from schedule?.cronExpression to schedule
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
Build Workflows with Ease
Design agent workflows visually on a canvas—connect agents, tools, and blocks, then run them instantly.
Supercharge with Copilot
Leverage Copilot to generate nodes, fix errors, and iterate on flows directly from natural language.
Integrate Vector Databases
Upload documents to a vector store and let agents answer questions grounded in your specific content.
Quickstart
Cloud-hosted: sim.ai
Self-hosted: NPM Package
npx simstudio
Note
Docker must be installed and running on your machine.
Options
| Flag | Description |
|---|---|
-p, --port <port> |
Port to run Sim on (default 3000) |
--no-pull |
Skip pulling latest Docker images |
Self-hosted: Docker Compose
git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Background worker note
The Docker Compose stack starts a dedicated worker container by default. If REDIS_URL is not configured, the worker will start, log that it is idle, and do no queue processing. This is expected. Queue-backed API, webhook, and schedule execution requires Redis; installs without Redis continue to use the inline execution path.
Sim also supports local models via Ollama and vLLM — see the Docker self-hosting docs for setup details.
Self-hosted: Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
- Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
- Configure environment:
cp apps/sim/.env.example apps/sim/.env
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bunx drizzle-kit migrate --config=./drizzle.config.ts
- Start development servers:
bun run dev:full # Starts Next.js app, realtime socket server, and the BullMQ worker
If REDIS_URL is not configured, the worker will remain idle and execution continues inline.
Or run separately: bun run dev (Next.js), cd apps/sim && bun run dev:sockets (realtime), and cd apps/sim && bun run worker (BullMQ worker).
Copilot API Keys
Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
- Go to https://sim.ai → Settings → Copilot and generate a Copilot API key
- Set
COPILOT_API_KEYenvironment variable in your self-hosted apps/sim/.env file to that value
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- UI: Shadcn, Tailwind CSS
- State Management: Zustand
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
Made with ❤️ by the Sim Team


