Get started
Introduction
Col is an open-source directory for discovering UI libraries by category, stack, and use case.
Find a library, narrow the results, then visit its official project page. You can save useful entries locally and request anything missing.
Start here
- Browse the directorySearch by name, keyword, category, or use case.
- Find a libraryFilter by stack and compare the options that fit.
- IntegrationsMCP servers and connectors for UI libraries and design tools.
- Col MCPConnect your coding agent to Col’s library and component catalogue.
- Agents and LLMsUse the catalog with your agent and verify recommendations.
- Version historyChanges from merged pull requests.
- Request a libraryMissing something useful? Ask for it on git.cafe.
What Col does
Col catalogs libraries, and for many of them a verified list of the components they document. Each listing has a category, supported stacks, and use cases so you can decide where to look next without opening dozens of tabs.
- Explore libraries across the directory’s categories.
- Search by component name and jump to that component’s official docs.
- Set up MCP servers and connectors for UI libraries and design tools in your AI client.
- Save entries in your browser for later.
- Request a library or contribute an improvement on git.cafe.