About ReliCSS
ReliCSS is a "CSS hack" detection tool designed to help developers identify and replace outdated browser-specific CSS hacks with modern, standards-compliant alternatives.
Mission
I want to help empower developers and teams to write cleaner, more maintainable CSS by detecting browser "hacks" and providing actionable modern suggestions. ReliCSS tries to "bridge the gap" between legacy CSS and modern web standards.
Features
- Real-time "CSS hack" detection and analysis with instant feedback
- Context-aware modern CSS suggestions
- Client-side processing - your code never leaves your device
Creator
ReliCSS was created by Stuart Robson, a Design Systems Consultant and Front-End Architect with over 15 years of experience helping organisations like UCL, Monotype, EMBL, and Springer Nature build scalable design systems.
Stuart is passionate about Design Systems, Modern CSS, progressive enhancement, and accessibility. He runs the popular Design Systems newsletter and speaks at conferences about design tokens, CSS architecture, and front-end best practices.
Connect
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