UIL4B
A free, in-browser workspace for building UI systems — colour, type, UI components, icons, imagery and AI in one place. Build, validate and export your interface foundations without tab-hopping across a dozen tools. No install, no credit card.
- Tool systems
- 6
- Icons
- 200k+
- Google Fonts
- 1,900+
- To start
- $0
- Client
- Self-published product
- Year
- 2026
- Role
- Product · Design · Build
- Scope
- Product strategy · UI · Engineering · Design system
- Duration
- Ongoing
- Photography
- Self-shot UI captures
For the buyer
- 01
For designers and developers
The foundations you rebuild on every project — colour, type, components, icons, imagery — in one fast workspace. Free, nothing to install, and it runs entirely in your browser.
- 02
One workspace, every foundation
Six tool systems instead of a dozen open tabs: colour, typography, UI components, icons & emoji, imagery & media, and an AI studio. Build a system in one place and keep it coherent.
- 03
Build, validate, export
Generate palettes from colour theory and check contrast, pair fonts and lock a type scale, design components with live preview — then export production-ready CSS. Foundations that leave the tool ready to use.
- 04
Proof on this page
The hero frames behind these words were extracted and re-encoded with UIL4B's own imagery tools. The toolkit eats its own dogfood.
Project note
UIL4B started as a private utility — the toolkit I kept rebuilding for every project — and I eventually shipped it as one workspace for building UI systems. It runs six tool systems in the browser: a colour system generator (palettes, tints, gradients and contrast), a typography builder that pairs fonts and locks a modular scale, a UI component builder with live preview and CSS export, a 200k-icon and full-emoji library, imagery and media tools for converting and framing assets, and an AI studio for prompts, pages and alt text. Everything runs client-side — free to start, no credit card. The hero frames behind these words were extracted and re-encoded with UIL4B's own media tools; it eats its own dogfood.
