JSX Tool
Fall 2025 · Active
AI-First In-Browser IDE for React Development
Founded: 2025
Team size: 2
About
JSX Tool is a browser extension that hooks into your React project, so you can easily locate any React component and file with just a click. This gives developers the ability to articulate visual requests to LLMs that without JSX Tool, are either vague or cumbersome to communicate in English and code snippets. On top of that JSX Tool is a full featured IDE tailored specifically for React Development, so users never have to leave the context of their browser when developing React code.
Founders
Jamie SunderlandFounder/CEO
Second time YC founder. Former YC Product Engineer (I made the YC investor CRM). I like weird front end things a lot. In a former life I started Cheqout (YC W21), a QR-based ordering platform that grew to over 250 restaurants and $30M GMV during the pandemic. Before that I was a developer on Airbnb's China Risk Team.
Dan HymanFounder/CTO
Senior Engineer and Cloud/AWS expert with experience leading teams building enterprise applications and infrastructure. In a past life, I was a chef at a James Beard award winning restaurant.