Font Fallback Stack Generator
Build a professional cross-platform font-family fallback stack. Enter your primary font and category — get a complete stack that renders correctly on macOS, Windows, Linux, Android, and iOS.
How to use
- Enter the primary font family name.
- Select its category (serif, sans, mono).
- Copy the complete stack into your CSS.
Frequently asked questions
Why does fallback matter?
Custom fonts fail to load for many reasons. A good stack keeps the layout readable and prevents invisible text while loading.
What is a system font stack?
A stack that uses only fonts guaranteed to exist on each OS: -apple-system, Segoe UI, Roboto, and similar. Fast, zero requests, but inconsistent across platforms.
How can I prevent layout shift from fallback?
Use font-size-adjust or the newer font-size-adjust CSS property to match fallback metrics to your primary font.