Cookie & Storage Policy
Last Updated: February 12, 2026
FontPreview is designed to be privacy-first. We use our Google Font previewer, font pairing generator, and typography QA laboratory with minimal cookies and local storage only for essential functionality. This policy explains exactly what we store, why, and how you can control it for our online typography workspace.
1. Local Storage vs. Cookies
FontPreview primarily uses localStorage (not cookies) for our variable font axes preview and WCAG font accessibility checker. Unlike cookies, localStorage data never sent to our servers, stays only in your browser, never used for tracking across websites, and is cleared when you clear your browser data.
We use traditional cookies only for Google Analytics and Google AdSense, which are third-party services with their own policies for our font contrast ratio tool and AI font psychology tool.
2. Data We Store (Local Storage)
| Key | Type | Purpose | Duration | Action |
|---|---|---|---|---|
fontPermissionAsked | Prevents system font permission modal from showing repeatedly | Until cleared | ||
fontPermissionGranted | Stores whether you allowed system font access | Until cleared | ||
darkMode | Remembers your dark/light mode selection | Until cleared | ||
cachedGoogleFonts | Caches Google Fonts list for faster loading in Google Font previewer | 7 days | ||
fontMagicFavorites | Stores your favorite font styles from FontMagic | Until cleared | ||
recentDecorations | Remembers recently used decorative elements | Until cleared | ||
cookieConsent | Stores your cookie consent choice | Until cleared |
All of the above are stored in localStorage, not cookies. You can clear them at any time via your browser settings or by clicking the "Reset" buttons above.
3. Third-Party Cookies
| Cookie | Provider | Type | Purpose | Duration |
|---|---|---|---|---|
_ga, _gid | Google Analytics | Distinguish users for anonymous traffic analysis | 2 years / 24 hours | |
_gat_* | Google Analytics | Throttle request rate | 1 minute | |
_gac_* | Google Analytics | Campaign information | 90 days | |
NID, IDE | Google AdSense | Serve personalized/non-personalized ads | 6-13 months | |
__gads | Google AdSense | Ad display and frequency capping | 13 months |
4. What We Never Store
FontPreview does not use cookies or localStorage for:
- ❌ Your typed text or preview content
- ❌ Font selections or comparisons from compare Google Fonts side by side
- ❌ Screenshots or captures
- ❌ Personal identification
- ❌ Cross-site tracking
Everything you type stays in your browser tab. When you close it, it's gone forever. All tools including web font tester and variable font axes preview run client-side, meaning your data never leaves your device.
5. Your Control & Preferences for Typography Tools
System Font Permission
When you first use the Comparison Lab to compare Google Fonts side by side, you'll be asked to allow access to your system fonts. To reset it, use the reset buttons above or clear localStorage via browser DevTools.
Dark Mode Preference
Your theme choice is saved in localStorage for our online typography workspace. Use the reset button above to clear it.
FontMagic Favorites
Your favorite font styles are saved for the live font editor web in fontMagicFavorites. Use the reset button above to clear them.
Google Analytics & AdSense
To opt out of Google Analytics tracking across all websites, install the Google Analytics Opt-Out Browser Add-on. To control personalized ads, visit Google Ad Settings.
Browser Settings
You can clear all localStorage and cookies at any time through your browser settings for high-performance web fonts for SEO testing.
6. Cookie Consent Banner
When you first visit FontPreview and use our typography QA laboratory, you may see a banner asking for cookie consent. This banner stores your choice in localStorage (key: cookieConsent) and is required by Google's EU User Consent Policy. You can change your consent at any time by clicking the "Re-open Consent Preferences" button at the top of this page.
7. Contact Us
If you have questions about our cookie and storage practices for our best Google Font combinations and professional font pairings for portfolios, here's how to reach us about minimalist typography trends and font pairing for tech startups:
Need assistance? Use our contact form for fastest response on typeface stress test tool or identifying open source fonts questions.