Proto
Proto is a YC Fall 2026 (F26) company. Based in San Francisco, CA, USA. Team of 2.
About Proto
Summary
Proto builds a design tool for professional design teams that treats prototypes as the primary artifact for refining and sharing ideas, rather than a secondary step. It combines the precision of code-based design tools with the creative flexibility of visual design software. Proto replaces the back-and-forth between static mockups and separate prototyping layers by making the prototype itself the central workspace.
Go-to-market
Proto targets professional design teams and is currently operating as a pilot with early users, with access granted through direct outreach.
From the Y Combinator listing
A design tool with the accuracy of Cursor & creative freedom of Figma
Facts
- B2B / B2B -> Engineering, Product and Design
- San Francisco, CA, USA
- 2
- Active
- Early
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