# OpenTailwind > Free, open-source UI block library and landing page template system built with Tailwind CSS. OpenTailwind provides 581 production-ready UI blocks and 640 landing page templates across 19 industry categories. All blocks support light/dark mode, responsive design, and scroll animations. The project is open source and funded by lindo.ai. ## Collections - Pro: Premium production-ready blocks (v6) - Fresh: Redesigned modern variants (v2) - Classic: Original foundational blocks (v1) ## Block Categories - Hero sections (61-73 per collection) - Features sections (61 per collection) - About sections (53 per collection) - Pricing sections (50 per collection) - Testimonial sections (50-51 per collection) - CTA sections (50 per collection) - FAQ sections (50 per collection) - Stats sections (53 per collection) - Team sections (50 per collection) - Header/Navigation sections (20-30 per collection) - Footer sections (9-10 per collection) - Gallery sections (18 per collection) - Integration sections (21 per collection) - Client logo sections (7-10 per collection) ## Landing Template Categories (19 industries) - Technology & SaaS (50 templates) - Agency & Consulting (30 templates) - Portfolio & Creative (40 templates) - E-commerce & Retail (40 templates) - Food & Hospitality (50 templates) - Healthcare & Wellness (50 templates) - Fitness & Sports (40 templates) - Real Estate & Property (40 templates) - Home Services (60 templates) - Automotive (20 templates) - Professional Services (40 templates) - Education & Training (30 templates) - Events & Entertainment (10 templates) - Nonprofit & Community (20 templates) - Construction & Trades (25 templates) - Travel & Tourism (30 templates) - Pet Services (20 templates) - Senior Services (20 templates) - Childcare & Kids (25 templates) ## How to Use 1. Browse blocks at /components or templates at /landings 2. Preview with customizable colors, fonts, and design styles 3. Copy the HTML code or download it 4. Use in any project — MIT licensed ## Links - Website: https://opentailwind.dev - GitHub: https://github.com/lindoai/opentailwind - Funded by: https://lindo.ai