Free web tools
Useful utilities without the clutter.
Complete common SEO, marketing, and accessibility tasks directly in your browser, then use the supporting guides to understand the result.
Available now
Choose a tool
UTM Campaign Builder
Build clean campaign URLs with presets, lowercase normalization, existing parameter preservation, and instant copying.
Color Contrast Checker
Check color contrast ratios for text and interface colors against WCAG accessibility thresholds.
Open Graph Preview Tool
Preview titles, descriptions, images, and social cards before publishing a page.
Understand the result
Guides that go with the tools
Use the tool for the immediate task, then read the deeper explanation when you need context or troubleshooting.
How to Build UTM Links Without Breaking Existing URL Parameters
A practical guide to clean campaign URLs, source naming, lowercase rules, and GA4-friendly tracking.
Digital GrowthOpen Graph Metadata Explained for Better Link Previews
Learn how title, description, image, canonical, and social metadata affect previews across common platforms.
Design & UXPractical Color Contrast Rules for Website Accessibility
A practical guide to readable color choices, WCAG contrast ratios, large text, and common design mistakes.