Font Tester — Real UI Layout Previews

Drop a local font file to preview on 6 realistic templates. Adjust typography controls and compare against system fonts — your font never leaves your device.

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Frequently Asked Questions

WOFF2, WOFF, TTF, and OTF — the four most common web and desktop font formats. Just drag and drop the file.

Six high-fidelity layouts: Landing Hero, SaaS Dashboard, E-commerce Product, Blog Article, Pricing Cards, and Analytics Dashboard — covering all common web patterns.

Yes. Enable Compare mode to see your custom font side-by-side with Inter (system font) on the same layout, helping you decide before buying a license.

Font size (12–72px), weight (100–900), letter spacing (-2 to 10px), and line height (1.0–3.0). All changes are reflected across the preview in real-time.

No. The font is loaded using the CSS Font Loading API directly in your browser. Your font file never leaves your device.

Yes. If you have a trial or specimen font file, drop it in to see how it looks on real UI layouts before committing to a license purchase.

Font Tester — Preview Fonts on Real UI Layouts - Privacy-First, Offline Developer Tool

Global Architecture: This tool runs entirely in your browser using WebAssembly. Unlike server-side alternatives, your data (JWTs, Logs, SQL) never leaves this device. It works offline and handles massive files (1GB+) bounded only by your RAM.