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* fix(compare): swap LangChain logo, fix comparison-table horizontal scroll
Replace LangChainIcon's path with the official brand mark (light-blue
link icon) instead of the prior monochrome recreation.
The comparison table's grid cells were missing min-w-0, so a grid item
without it sizes to its content's max-content width instead of
respecting its column's fr track, pushing the whole table wider than
its container and forcing a horizontal scrollbar. Add min-w-0 to every
grid cell/header, and size the row-label column to minmax(140px,
max-content) instead of a guessed fr ratio, so it's exactly as wide as
its longest label ("Vetted first-party integrations") needs and no
wider, leaving the Sim/competitor value columns their full share.
* fix(compare): stacked mobile layout for the comparison table
Below sm (640px) a 3-column table has no room to be legible even with
the sticky label column, so switch to the standard responsive-table
pattern instead: each fact stacks as label -> Sim's value -> the
competitor's value, each value tagged with its product name since the
column headers are no longer directly above. Pure CSS (max-sm:/sm:
variants), no JS, keeping this a zero-hydration server component.
* fix(compare): fix SourceLink inline-anchor overflow, align table breakpoint
Root cause of the persistent table-overflow/mobile-scroll issues: SourceLink
renders a plain <a> with no explicit display, so it defaults to
'display: inline'. min-width and truncate are no-ops on inline elements, so
any fact with a source (nearly all of them) ignored its flex/grid parent's
width constraint and could force the whole row (and thus the whole table)
wider than intended, regardless of any container-level min-w-0/max-content
fix. Give the anchor 'block min-w-0' so width constraints and truncation
actually cascade down to the wrapped value.
Also aligns the table's mobile-stack breakpoint from an ad hoc sm (640px) to
lg (1024px), matching this route group's own tablet-and-below convention
(.claude/rules for the (landing) group), and fixes the stacked mobile cells
to override the cell's base items-center with items-stretch so the name tag
and value get a real full-width box to truncate within instead of shrinking
to their own content size with no boundary.
* fix(compare): add min-w-0 to ColumnHeader per Greptile review
ColumnHeader (the Sim/competitor logo header cells in the two fr columns)
still had default min-width: auto, so an unusually long competitor name
could size the header to its min-content width and push the grid wider
than its column allows, same root cause as the rows already fixed.
A workspace to build, deploy and manage AI agents and workflows.
Quickstart
Cloud-hosted: sim.ai
Self-hosted
npx simstudio
Docker must be installed and running. Use -p, --port <port> to run Sim on a different port, or --no-pull to skip pulling the latest Docker images.
Capabilities
- Connect 1,000+ integrations and every major LLM
- Add Slack, Notion, HubSpot, Salesforce, databases, and more
- Build agents visually, conversationally, or with code
- Ingest files, knowledge bases, and structured table data
- Monitor runs, logs, schedules, and workflow activity
One workspace, every surface
Chat and workflows are just the start — tables, files, knowledge, and scheduled tasks all live in the same workspace.
Tables — a database, built in |
Files — one store for your team and every agent |
Knowledge — your agents' memory |
Scheduled tasks — runs on your schedule |
Self-hosting
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.
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).
Chat API Keys
Chat is a Sim-managed service. To use Chat on a self-hosted instance:
- Go to https://sim.ai → Settings → Chat keys and generate a Chat 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
Next.js · Bun · PostgreSQL · Drizzle · Better Auth · Tailwind — and the rest of the 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.
