S
Sim Studio
41
Stack Score
Editorial pick✓ Verified working
Sim Studio
Open-source visual AI agent builder.
Try Sim Studio✓ Free trial available
Best for
Best for engineering-adjacent ops teams wanting open-source visual agent building.
At a glance
- Pricing
- freemium
- Setup time
- 1 hour
- Learning curve
- moderate
- Last verified
- 5/25/2026
What we love
- ✓Open-source
- ✓Visual UX for non-engineers
- ✓Strong self-host story
Where it falls short
- −Early-stage product
- −Smaller community
- −Some integrations sparse
Pricing
2 tiers
Free
$0
forever
- ✓OSS
- ✓Self-host
Cloud
Usage
per run
- ✓Hosted
Overview
Sim Studio is an open-source visual workflow builder for AI agents — drag-and-drop blocks, BYO LLM, deploy as API or webhook. Self-hostable for sovereign-data agents.
Key features
- ●Visual workflow builder
- ●BYO LLM
- ●Multi-step + branching
- ●Self-host option
- ●MIT license
Best use cases
Custom AI workflow
Build domain-specific AI agents without code.
Self-hosted automation
Run agents on owned infra for sensitive data.
Integrations
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