Google Fonts Tester: Compare, Pair, Variable Axes, X-Height & Preview

Why Use FontsDiff?

🔹 Free Font Tester – Compare, Pair & Play

Test, explore, and compare Google Fonts online without installing anything. Whether designing for the web or mobile, FontsDiff provides a seamless font testing experience in a single interface.

• ✅ Live Font Preview & Customization
• ✅ Real-Time Font Size & Weight Adjustments
• ✅ Perfect for Web, UI/UX & Graphic Design

🔹 Typeface Exploration – Discover & Test Google Fonts

FontsDiff offers an extensive Google Fonts preview tool that automatically updates with new fonts. Stay ahead with the latest typography trends and experiment with hundreds of font styles effortlessly.

• ✅ Instant Access to Google’s Latest Fonts
• ✅ Preview Fonts with Custom Text & Backgrounds
• ✅ Perfect for Designers, Developers & Content Creators

🔹 Variable Font Tester – Full Typography Control

Modify fonts like never before with variable font axes adjustments. Test weight, width, slant, and advanced axes like BNCE, INFM, SPAC to customize typography for your project.

• ✅ Fine-tune Font-Variation Settings
• ✅ Supports All Google Variable Fonts
• ✅ Ideal for Advanced Typography Experiments

🔹 X-Height & Cap-Height Typography – Precision Analysis

Typography isn’t just about style—it’s about precision. FontsDiff provides detailed X-height and Cap-height data for every Google Font, allowing you to choose fonts with the perfect proportion for readability and aesthetic balance.

• ✅ Side-by-Side Font Height Comparison
• ✅ Optimize Readability for Web & Print
• ✅ Essential for Professional Typography

🔹 Font Pairing Tool – Create Perfect Combinations

Struggling with font pairing? Our Font Pairing Tool helps you mix and match fonts seamlessly, ensuring visually harmonious typography. Fine-tune font properties with a user-friendly controller, similar to design tools like Figma & Abstract.

• ✅ Find the Best Font Pairings Instantly
• ✅ Customize Spacing, Weight & Styles
• ✅ Ideal for Branding, Editorial & UI Design

📌 Currently developing the controller UI—stay tuned for updates!

🔹 Sync Mode – Intelligent Font Testing

Enable Sync Mode to apply content changes across all comparison cards while maintaining unique font families. This makes multi-font testing more efficient, especially when evaluating different typography options in one view.

• ✅ Edit Once, Apply to All Cards
• ✅ Streamlined Font Testing for Large Projects
• ✅ Maintain Font Family Uniqueness While Syncing Content

🔹 Playground Mode – Mix & Match Fonts Freely

Want to see how different fonts look together? Playground Mode lets you assign different Google Fonts to each line within a single comparison card.

• ✅ Visualize Font Combinations in Real-Time
• ✅ Test Headings, Subheadings & Body Text Together
• ✅ Perfect for Typography Research & A/B Testing

🎯 Why Choose FontsDiff?

Unlike basic font preview tools, FontsDiff offers:

• ✅ A Unified Google Fonts Tester – All features in one interface.
• ✅ Real-Time Font Customization – Adjust settings without delays.
• ✅ Advanced Font Comparison Tools – Pair, compare, and analyze effortlessly.
• ✅ Typography Data for Professionals – X-Height, Cap-Height, Glyphs & More.
• ✅ 100% Free & No Sign-up Required – Start testing fonts instantly!

🚀 Ready to explore FontsDiff upon launch?

Sign up through our Google Form to get notified when we go live!