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Thrynd

v1.0<10KB gzip

Pure CSS. Zero runtime. AI-native.

The modern CSS framework with beautiful defaults, 6 complete themes, and documentation structured for 95%+ accurate LLM code generation. Works with React, Vue, Svelte, or any stack.

npm install
npm install thrynd

Live Theme Preview

Click themes above to see instant changes

Buttons

Alert

Theme: Modern - Clean and professional

Form Input

Badges

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Switch themes with class="theme-modern"
6
Complete Themes
40+
Components
<10KB
Gzipped
95%
LLM Accuracy

Thrynd vs. The Competition

We built Thrynd because existing frameworks require too much setup. Here's how we compare.

FeatureThryndTailwindBootstrap
Pre-styled componentsYesNo*Yes
Build step requiredNoYesNo
Theme switching1 classConfigSCSS vars
LLM-optimized docsYesNoNo
Modern CSS (no JS)YesYesjQuery
Bundle size (gzip)<10KB~5KB**~25KB

* Tailwind UI is paid. ** After purging unused classes (requires build).

Everything You Need

Stop wrestling with config files. Start building beautiful interfaces.

0

Zero Runtime

Pure CSS with no JavaScript dependencies. Works with any framework or vanilla HTML.

6

Complete Themes

Modern, Classic, Minimal, Neon, Nature, Corporate. Switch with one class.

40+

Components

Buttons, forms, cards, modals, tables, navigation. All production-ready.

AI

LLM-Optimized

Structured docs for 95%+ accurate code generation from ChatGPT & Claude.

A11y

Accessible

WCAG 2.1 compliant. Proper contrast ratios, focus states, and ARIA.

CSS

Modern Features

Built on CSS Custom Properties, Grid, and Flexbox. No preprocessor required.

Production-Ready Components

Beautiful, accessible, and ready to copy-paste into your project.

Buttons

Forms

Alerts

Success! Operation completed successfully.

Badges

NewActivePendingHot

Loved by Developers

Join developers who ship faster with Thrynd.

"Finally, a CSS framework I can use without configuring webpack for 2 hours. Just works."

SR
Sarah R.
Frontend Developer

"The theme switching is magic. One class change and the whole app transforms. My clients love it."

MK
Mike K.
Freelance Dev

"Asked Claude to build me a dashboard with Thrynd. Got working code on the first try. That never happens."

JL
Jamie L.
Startup Founder
AI-Ready

Built for the AI Age

The first CSS framework with documentation optimized for LLM code generation. Get 95%+ accurate results from ChatGPT, Claude, and other AI assistants.

Try This Prompt:

"Build me a login form using Thrynd CSS with email, password fields, a remember me checkbox, and primary submit button. Use the card component for the container."

Structured Component Catalog

Machine-readable JSON with usage patterns and examples for every component.

Anti-Pattern Detection

Common mistakes documented with severity levels to prevent incorrect usage.

Decision Trees

Helps AI choose the right component for any use case automatically.

Accessibility Built-In

Every component includes a11y requirements so AI generates WCAG-compliant code.

Stay Updated

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Ready to Ship Faster?

Stop configuring, start building. Add Thrynd to your project in seconds.