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Online Font Viewer & Inspector

Instantly preview, test, and inspect your font files. Safely analyze TTF, OTF, and WOFF formats directly in your browser.

How to use the font viewer

1

Upload your font

Click the upload area or drag TTF, OTF, WOFF, or WOFF2 files from your computer.

2

Check details

Instantly view font metadata information, including font family name, designer, version, and copyright details.

3

Explore Glyphs

Browse the complete character mapping to view every glyph contained in the font file, with support for real-time character editing.

Why choose our font checker?

100% Private & Secure

Your font files are processed entirely within the browser. They are never uploaded to our servers, ensuring your data remains completely private.

Instant parsing and rendering

Powered by the high-performance opentype.js library, our tool instantly parses and renders font information and glyphs.

Real-time glyph editing

Directly modify character mappings interactively in the character map table. Change the Unicode values of characters and instantly download the modified font file.

Comprehensive Metadata

Explore content beyond the preview. Access all essential font metadata, including designer, manufacturer, copyright, and OpenType-specific tables.

Frequently Asked Questions

Is it safe to upload my proprietary font here?▼
Absolutely. The entire process runs locally in your browser. Your font files are never sent to our servers or any third-party servers. Your intellectual property remains secure on your device.
Which font formats are supported?▼
Our tool supports the most commonly used font formats in web and design: TrueType (.ttf), OpenType (.otf), Web Open Font Format (.woff), and Web Open Font Format 2 (.woff2).
Why do some glyphs display as blank squares?▼
Font files contain mappings from characters (like 'A') to glyphs (the visual representation of 'A'). Some glyphs in font files may not have assigned character codes (these are typically used for ligatures or other substitutions) or may be control characters. These will appear as blanks or placeholder squares in the character map.
Can I use this tool to identify fonts from images?▼
No, this is a font *viewer*, not a font *identifier*. You need to have the font file itself to upload and inspect it. Tools like "WhatTheFont" are designed for identifying fonts from images.

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