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ENTERPRISE TYPOGRAPHY QA LAB v2.0

Typography QA & Compliance Lab
Validate Fonts for Accessibility, Performance & Internationalization

Test fonts against real-world constraints: color blindness simulation, dyslexia-friendly detection, performance budgeting, 40+ international character sets, deep font scanning, and visual breaking point analysis. The only complete font QA tool with verified compliance certificates.

Connected to Google Fonts API · fonts available · Deep Scan Ready
Font Library
Load more fonts ( remaining)
TTF · OTF · WOFF2
Clear
Deep Scanned ✓
QA Test Canvas
German
chars lines
Missing:
Arabic
% coverage
Missing:
Cyrillic
% coverage
Missing:
Chinese
% coverage
Missing:
Greek
% coverage
Missing:
Japanese
% coverage
Missing:
Custom Test Result
Missing:
All characters supported!

How to Use This Tool

Quick Start
1
Choose a Font Select from 1500+ Google Fonts or upload your own TTF/OTF/WOFF2
2
Run QA Tests Check international support, accessibility, and performance
3
Deep Scan (New) Extract metadata, glyph count, copyright info, and variable axes
4
Export Verified Reports Download PDF audits with official lab seal and compliance certificates
Pro Tips
Use Accessibility tab for color blindness and dyslexia simulation
Layout Stress tab now shows visual breaking points and overflow highlights
Performance tab includes Recommendation Engine with weight optimization
Deep Scan tab shows font metadata like you've never seen before
Use Zen Mode (bottom right) for distraction-free testing
Watch Demo Full Guide Support
Blur Simulation
Font Size
Contrast Reduction
The quick brown fox jumps over the lazy dog
Donaudampfschifffahrtsgesellschaftskapitän • 12px
Legibility Score:
This font has mirrored characters (like 'b' and 'd' or 'p' and 'q') that can be confusing for readers with dyslexia. Consider a font with more distinct letterforms.
Good news! This font has distinct letterforms that are easier for dyslexic readers to distinguish.

Ghost Overlay with Visual Breaking Points

Visual Regression

Overlay two fonts to reveal subtle differences in x-height, kerning, and proportions. Visual breaking points pulse to highlight layout shifts.

Base Font
TTF · OTF · WOFF2

No fonts in library yet.
Upload some fonts first!

Overlay Font
TTF · OTF · WOFF2

No fonts in library yet.
Upload some fonts first!

⬤ Base + ⬤ Ghost
⚠️ VISUAL BREAKING POINT
x-height diff
width diff
kerning diff
Quick compare:
Total
Supported
Missing
Coverage

Special Characters

© Copyright ® Registered ™ Trademark € Euro ¥ Yen £ Pound § Section ¶ Pilcrow † Dagger ‡ Double Dagger • Bullet ± Plus-minus ÷ Division ∞ Infinity

Interactive Glyph Inspector

Developer Tool

Click any glyph to see its Unicode value, HTML entity, and CSS content code. Perfect for web development.

Character
Unicode
HTML Entity
CSS Content
This glyph is missing in the current font. Consider using a different font or a fallback.

Common Symbols

© Copyright ® Registered ™ Trademark € Euro ¥ Yen £ Pound § Section ¶ Pilcrow † Dagger ‡ Double Dagger • Bullet ± Plus-minus ÷ Division ∞ Infinity

Container Overflow Test with Breaking Points

Visual Stress

Test how your font behaves in fixed-width containers. Red highlights show exactly where text overflows. Pulsing overlays indicate breaking points.

Breaking Point
Max Width
Lines Needed
Fits perfectly
At breaking point
Critical overflow

Real-World UI Stress Tests with Overflow Detection

Production Scenarios

See how your font performs in actual UI components. Red highlights show items that overflow.

Card (250px fixed)
Product Title That Might Wrap
This is a product description that might wrap to multiple lines in a card layout.
Navigation Bar
Home Products Internationalization Settings Profile
Button Group
Form Input
user.with.a.very.long.email.address@example.com
Long Title (Truncation Test)
This is an extremely long product title that will definitely overflow and get truncated with ellipsis in a real UI card
Title is truncated. Consider a shorter title or wider container.

Performance Budget Calculator with Recommendation Engine

Core Web Vitals

Calculate the performance impact of your font choice. See estimated load times and get intelligent recommendations.

Weights to include:
Estimated load time: File size: 3G budget:
PageSpeed Impact
HTTP Requests
Render Delay
Performance Recommendation Engine
Potential savings:
Subsetting Recommendation

Subsetting can reduce file size by up to 70% for specific language support.

Alternative Fonts Comparison

Inter
Roboto
Open Sans
Lato
Viewport Width
Donaudampfschifffahrtsgesellschaftskapitän
Кириллическая поддержка и греческий алфавит
这是一段中文测试，检查字体是否支持汉字显示
Mobile (320px): Tablet (768px): Desktop (1440px):

Deep Font Scan

Font Metadata Analysis

Perform a deep scan of your font to extract metadata, copyright information, glyph count, variable axes, and more. Font ready for deep scan! Upload a local font for full deep scan capabilities.

Supports TTF, OTF, WOFF2

Font Family
Total Glyphs
Copyright
Trademark
Version
Manufacturer
Designer
License
Is Variable
Unique ID
Variable Axes
Unicode Ranges Detected
Basic Latin Latin-1 Supplement
Compliance Dashboard
LIVE
QA Score
International
6 languages
Legibility
At 12px
Glyph Coverage
96 glyphs
Responsive
3 breakpoints
Color Blind Accessible Dyslexia-Friendly Performance OK

Enterprise Compliance

WCAG 2.1 AA
Contrast ratio ≥ 4.5:1
i18n Ready
Cyrillic + Arabic + Chinese
Legal Symbols
© ® ™ § ¶ support
Currency Symbols
€ ¥ £ support
Math & Technical
± ÷ × √ ∞ support
Dyslexia Friendly
No mirrored characters (b/d, p/q)
Enterprise Recommendation
Verified by FontPreview Lab
· QA Score:

Enterprise-Grade Features v2.0

Deep Font Scan

Extract metadata, copyright info, glyph count, and variable axes from any uploaded font. Competes with FontTable and FontForge.

Recommendation Engine

Smart performance advice: "This adds 280kb - use a variable font for 15% faster PageSpeed."

Verified Certificates

Official-looking compliance certificates with "Verified by FontPreview Lab" seal for client handoffs.