FontFixer

VKT FontFixer

Optimize webpage fonts for comfortable reading. Change font family, size, and text colors with one click.

Chromium · Manifest V3 · No Tracking

🆓 Free Features

  • Font selection — 3 built-in fonts (Noto Sans, Source Han Sans, Arial) or any local font
  • Local font support via queryLocalFonts API
  • Font size scaling 80%–160% with slider
  • Custom text color with color picker
  • Separate link color for readability
  • Auto Apply — re-apply saved settings automatically on every visit
  • Auto-save settings per site (up to 5 sites in free version)
  • One-click reset to original fonts
  • Real-time preview — instant changes
  • Minimal permissions: storage + scripting + activeTab

⭐ Advanced Features (License)

  • Unlimited configurations — save font settings for unlimited websites
  • Import / Export — export your configurations and import on other devices

How It Works

Select font & adjust settings → Click Apply → CSS injected via chrome.scripting.insertCSS → Page fonts change instantly → Settings saved to chrome.storage.local

All processing happens locally. Free use is fully offline — the only network request is optional Pro license activation.

Installation

  1. Visit the Chrome Web Store page for FontFixer
  2. Click Add to Chrome and confirm
  3. Click the 🔤 icon in your toolbar to start using

Privacy

  • storage — Saves font preferences locally only
  • scripting — Injects CSS to change fonts. Does not read page text or data.
  • activeTab — Only accesses current tab when you interact with the extension
  • <all_urls> host access — re-applies saved styles on sites you configure (Auto Apply); never reads or uploads page content
  • No tracking, no analytics. The only network request is optional Pro license activation

Local Font Access: The browser will request permission when reading your installed font list. Only font display names are read — font source files are not extracted, copied or uploaded.

Install for Chrome Install for Edge View on GitHub

GitHub repository only contains readme documentation for reference. No offline installation packages, source code for end users are not provided. Official installation channel is Chrome Web Store only.

For questions: [email protected]