Font Smooth от Zema Tools

Font Smooth is a font changer for websites that gives you control over how text looks and feels while browsing.

Choose your preferred fonts, adjust text size, line height, and letter spacing, and apply your typography everywhere or only on selected websites.

Features include:

Included, device, and custom fonts
Separate fonts for body text, headings, and code
Text size, line height, and letter spacing controls
Global and per-website typography settings
Presets for saving your favorite setups
Light, dark, and system themes
Backup and restore

Font Smooth applies typography changes directly in your browser and is designed to make websites more comfortable to read.