Ultralight YC Application

Winter 2019Active

Ultralight went through Y Combinator in the Winter 2019 batch as a B2B company. Below: what the company does, who founded it, and its application to YC, reconstructed question by question in the real YC form.

YC batch: Winter 2019
Industry: B2BEngineering, Product and Design
Team size: 1
Status: Active
Launched: 2024

Founders

Adam SimmonsFounder & CEO

What Ultralight does

Ultralight is a GPU-accelerated toolkit to embed modern HTML in games and native apps. Available for C and C++ on Windows, macOS, Linux, Xbox, PlayStation, ARM64 devices, and more. Developed in collaboration with leading game studios, built GPU-first on a new, lightweight fork of WebKit.

Ultralight's YC application, reconstructed

Y Combinator application

Ultralight, Winter 2019 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Ultralight

Describe what your company does in 50 characters or less.

Universal, Pure-GPU HTML Renderer

What is your company going to make? Please describe your product and what it does or will do.

We built a GPU-accelerated toolkit that embeds modern HTML rendering directly into games and native apps. It's a pure-GPU implementation on a fork of WebKit designed for platforms like Windows, macOS, Linux, Xbox, and PlayStation. Game studios use Ultralight when they need fast, lightweight, and flexible UI rendering with full HTML/CSS support, but without the overhead of a full browser engine.

Where do you live now, and where would the company be based after YC?

I live in San Francisco, and the company is based here as well.

Explain your decision regarding location.

San Francisco is where most game studios and native app developers are concentrated, which makes it easier to collaborate and get feedback. Being here also keeps us close to industry events and potential partners.

21 more answers in the full application

Founders, Progress, Idea, Equity, Curious, Batch Preference are in the full version. Create a free account to open it in YC Insights, next to every other YC batch.

See full application

Frequently Asked Questions

Is this the real Ultralight YC application?

No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Ultralight's public data (launch notes, founder backgrounds, product description). It shows how a company like Ultralight would present itself to YC, not the text they submitted.