Waleed
bc92a2cc49
* improvement(files): fit-width previews and chip-chrome viewer controls - PDF and DOCX previews now treat 100% zoom as fit-to-width instead of capping at the page's natural print size, removing the dead gutters in wide panels (pdf.js re-renders the canvas at the target width and DOCX uses CSS zoom, so both stay crisp) - PreviewToolbar page/zoom controls move from 24px ghost Buttons with off-token labels to canonical emcn chips (icon-only Chip pills, text-sm --text-body value labels) - XLSX sheet tabs move from underline-style ghost Buttons to a chip cluster using the active pill state - Audio preview swaps the music emoji for the lucide Music icon on design-system tokens * improvement(files): debounce PDF panel-resize re-rasterisation With fit-to-width every pageWidth change re-rasterises all page canvases, so per-tick updates during a panel-divider drag re-rendered the document continuously. First measurement still applies immediately. * fix(files): don't let a zero-width first measurement consume the immediate resize slot A hidden container reports zero width from the ResizeObserver; treating that as the initial measurement pushed the real first width onto the debounce path and delayed initial render. * improvement(files): module cleanup — dedupe media previews, debounce docx refits - Merge the near-identical AudioPreview/VideoPreview into one MediaPreview (shared fetch/blob-URL/error/loading path; only the player differs) - Debounce docx resize refits the same way the PDF preview debounces width measurements (the initial fit comes from the render path, not the observer) - Document the load-bearing buffer copy in pdf-viewer (pdf.js transfers and detaches the ArrayBuffer it receives)
The open-source AI workspace where teams build, deploy, and manage AI agents. Build conversationally, visually, or with code. Connect 1,000+ integrations and every major LLM to automate real work.
Build everything in Mothership
Your AI command center. Describe what you want in plain language. Mothership knows your entire workspace and takes action: building agents, running them, querying data, and more.
Create files and documents
Generate documents, reports, and presentations from a single prompt, grounded in your workspace data.
Ground agents in your knowledge
Upload documents to a knowledge base and let agents answer questions from your own content.
Structured data with Tables
A database, built in. Store, query, and wire structured data into agent runs.
Build visually with Workflows
Prefer a canvas? Design agents block by block in the visual builder, and let Copilot generate blocks, wire variables, and fix errors from natural language.
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
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
bun run prepare # Set up pre-commit hooks
- 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
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
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 && bun run db:migrate
- Start development servers:
bun run dev:full # Starts Next.js app and realtime socket server
Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).
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
- Schema Validation: Zod
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
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