# stagewise

> stagewise is a frontend coding agent that lives inside your running web app on localhost. Instead of switching between a browser and an IDE, developers click on a UI element, describe the change in plain language, and stagewise edits the actual source code in the local codebase. Started by Julian Goetze and Glenn Toews and part of Y Combinator's Summer 2025 batch, it began as an open-source, framework-agnostic toolbar that has been downloaded more than 130,000 times and starred over 4,800 times on GitHub.

- **Founded:** 2024
- **Headquarters:** San Francisco, California, United States (founding team based in Bielefeld, Germany)
- **Founders:** Glenn Toews (Co-founder & CEO), Julian Goetze (Co-founder & CTO)
- **Team size:** 2-3
- **Products:** stagewise toolbar, stagewise frontend coding agent
- **Notable:** Accepted into Y Combinator Summer 2025 batch, 130,000+ downloads of the open-source toolbar, 4,800+ GitHub stars

## Products & services

- **stagewise toolbar** — Open-source, framework-agnostic toolbar injected into a web app running on localhost. Developers click UI elements and comment on them; the toolbar captures DOM elements, screenshots, and browser metadata and forwards the enriched context to a coding agent.
- **stagewise frontend coding agent** — The agent that receives browser context and makes precise edits to the local source code. Runs via 'npx stagewise', proxying the dev app and modifying the codebase. Supports React, Vue, Angular, Next.js, vanilla JavaScript, and Rails ERB templates.

## Achievements

- Accepted into Y Combinator Summer 2025 batch
- 130,000+ downloads of the open-source toolbar
- 4,800+ GitHub stars
- Framework-agnostic support across React, Vue, Angular, Next.js, vanilla JS, and Rails ERB

## Latest updates

- **2025-08** — Launched on Hacker News and Y Combinator as 'the frontend coding agent for production codebases' as part of the S25 batch.
- **2025-08** — Reported total funding of $130,000 at the seed stage.

## Links

- Website: https://stagewise.io
- LinkedIn: https://www.linkedin.com/company/stagewise-io
- Twitter/X: https://twitter.com/stagewise_io
- GitHub: https://github.com/stagewise-io/stagewise

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Profile page: https://yespress.io/stagewise-yc-s25
Published by YesPress — https://yespress.io
Last updated: 2026-07-30