stagewise is building an open-source agentic IDE: a developer workspace for creating and orchestrating coding agents. The tool lets developers run agents in parallel, use their preferred models across providers, preview running apps, and manage Git workflows, while keeping agents connected to browser/runtime context and the broader codebase. Its initial toolbar product has surpassed thousands of GitHub stars and over 100,000 downloads. stagewise was co-founded by Glenn Töws and Julian Goetze, and participated in Y Combinator's Summer 2025 batch.
stagewise
ActiveThe Open Source Agentic IDE
Total raised
$500K
1 round
Stage
Seed
Jan 2025
Team
1-10
since 2025
Pricing
—
Founded
2025
San Francisco, United States
Agent-ready
—
Open-source agentic IDE for creating and orchestrating coding agents
Run multiple coding agents in parallel within one workspace
Model-agnostic support for preferred models across providers
Live preview of running apps alongside agent work
Integrated Git workflow management
Agents kept connected to browser and runtime context
Codebase awareness so agents work with broader project context
Toolbar product with thousands of GitHub stars and 100,000-plus downloads
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2025 Seed $500K ● Y Combinator
Capital network
$500K raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- Is stagewise open source?
- Yes. stagewise is an open-source agentic IDE for building and orchestrating coding agents, with app previews and Git workflows.
- Can I use my own models?
- Yes. stagewise is model-agnostic, letting developers use their preferred models across providers rather than locking into a single LLM.
- What traction does stagewise have?
- Its initial toolbar product has surpassed thousands of GitHub stars and over 100,000 downloads.
- Who built stagewise?
- It was co-founded by Glenn Töws and Julian Goetze and participated in Y Combinator's Summer 2025 batch.
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