# Tessli Source Guide — Headless UI

Use this source to Unstyled accessible components for React and Vue

Tessli guide: /resources/headless-ui
Provider: https://headlessui.com

## Use it when

- accessible-ui-implementation
- tailwind-component-foundation
- react-vue-interface-build

## What to explore

- accessible-components
- headless-components
- component-library
- component
- code
- documentation

## How to access

- **browser (preferred):** Open the canonical provider URL; sign-in and other access requirements are not recorded. Auth: unknown. (https://headlessui.com)

## Important limitations

- Components are intentionally unstyled and require a project-owned visual system.
- Framework support is limited to the documented React and Vue packages.
- Application-level keyboard, screen-reader, and responsive testing is still required.

## Consider instead

- **21st.dev:** Recorded task fit: Component Discovery. Tessli guide: /resources/21st-dev. Provider: https://21st.dev.
- **Ant Design:** Recorded task fit: Enterprise Dashboard. Tessli guide: /resources/ant-design. Provider: https://ant.design.

## Interpretation boundaries

- Repository intelligence is not live-provider verification.
- Revalidate provider access, pricing, licensing, terms, availability, and time-sensitive claims.
- Tessli classifications are research guidance, not provider claims or universal rankings.
- No browser-local Board, Saved, account, cookie, or credential data is included.