Reliability First: Web Safe Fonts
Custom fonts are great, but they have a cost (performance and stability). The **Web Safe Fonts** reference at **Online Tool Base** provides a curated list of font families that are pre-installed on 99% of devices (Windows, Mac, Android, Linux). Using these guarantees your text appears instantly with zero layout shift.
System Fonts vs Web Fonts
Modern "System Font Stacks" allow you to tap into the native OS typography (like San Francisco on Mac or Segoe UI on Windows) without loading any external files. **onlinetoolbase.online** gives you these modern, high-performance font stacks ready to copy-paste into your CSS. They are the fastest possible way to render text.
Why Use This Tool?
Even if you use a custom web font, you need a solid fallback stack in case the network fails. This tool helps you construct a fallback chain that matches the metrics (width/height) of your custom font, minimizing the jarring "FOUT" (Flash of Unstyled Text) effect.
Key Features
- OS Specific Stacks: Target iOS, Android, and Windows native looks.
- Classic Stacks: Reliable pairs like Arial/Helvetica and Georgia/Times.
- Preview: See how the font renders on your specific device.
- Copy-Paste: Get the full `font-family` CSS string.
How to Use
- Browse the list of Serif, Sans-Serif, and Monospace stacks.
- Preview the text style.
- Click to copy the CSS snippet.
- Paste it as the value for `font-family`.
Technical & Privacy Note
Static reference. The **Web Safe Fonts** guide from **Online Tool Base** is an informational resource suitable for offline use.