Web-Safe Fonts Preview

Preview all web-safe and system fonts. Adjust size, weight, and style. Copy CSS font-family stacks.

Last reviewed: April 2026
Reviewed by , software engineer · last updated April 2026

New to this tool? Click here for instructions

20 fonts - Preview: 'The quick brown fox jumps over the lazy dog'

CSS Font Stacks

How to use Web-Safe Fonts Preview

To use the Web-Safe Fonts Preview tool, follow these steps:

1. Visit the [tool page](https://thisdevtool.com/tools/web-safe-fonts.html).

2. Choose a font from the list of web-safe fonts.

3. Adjust the text size, weight, and style as desired.

4. Copy the CSS font-family declaration for the selected font.

5. Use the copied CSS in your website's CSS file.

When to use Web-Safe Fonts Preview

Use Web-Safe Fonts Preview when you need to ensure that your website's typography displays consistently across different devices and browsers. It's particularly useful for developers who want to avoid font download issues and ensure their website looks good on all platforms.

How it works

Web-Safe Fonts Preview is a free online tool that allows you to preview all 20+ web-safe and system fonts. The tool provides a user-friendly interface where you can select a font, adjust its size, weight, and style, and copy the corresponding CSS font-family declaration. This makes it easy to integrate the selected font into your website's CSS file.

Tips, Edge Cases, or Limitations

1. Font Availability: Web-Safe Fonts Preview only includes fonts that are pre-installed on major operating systems. If you need a font that is not web-safe, consider using Google Fonts or other font services.

2. CSS Font Stacks: Always use a CSS font stack to ensure that your website's typography displays correctly even if the primary font is not available. A font stack lists fonts in preference order, and the browser will use the first font it finds installed.

3. Font Size and Legibility: When choosing fonts for body text, prioritize legibility at 16-18px. Verdana and Georgia were specifically designed for this purpose. For headings, larger text sizes and bolder weights work well with any of the sans-serif fonts.

4. Long-Form Reading: For long-form reading (blogs, articles), a line width of 60-75 characters (around 600-700px at 18px) with 1.6-1.8 line height in Georgia or a system sans-serif is the proven formula.

5. Variable Fonts: Variable fonts represent the future of web typography, packaging multiple weights and styles into a single file. The system-ui generic family now maps to variable system fonts on most platforms, giving designers fine-grained weight control without any font downloads.

Frequently Asked Questions

Web-safe fonts are typefaces that are bundled with major operating systems - Windows, macOS, iOS, Android, and Linux. Because they are pre-installed, they render instantly without any network request, making them the fastest possible font choice for a website.
A CSS font stack lists fonts in preference order, ending with a generic family. The browser uses the first font it finds installed. For example: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif.
Use web-safe fonts when you want to ensure consistent typography across different devices and browsers without any font download issues. Consider using Google Fonts or other font services if you need a font that is not web-safe.
The system-ui font is a modern system font stack that looks native on every device, loads at zero cost, and is tuned for legibility at the OS level. It includes fonts like -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif.
Serif fonts have traditional roots in print typography and convey authority and formality. They include fonts like Georgia, Times New Roman, Palatino, Garamond, Book Antiqua. Sans-serif fonts are clean and modern, performing best on screen at most sizes and are the standard choice for body text in web design. They include fonts like Arial, Verdana, Helvetica, Trebuchet MS, Tahoma, Calibri, Gill Sans.