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View font details and glyphs locally

No need to upload files—preview fonts, view metadata, inspect character mappings, and export modified fonts as needed, directly in your browser.

Security and Privacy Commitment

All operations are completed locally in your browser—files are never uploaded to any server, ensuring your data remains absolutely secure.

Click to select a font file or drag and drop it here

Supports .TTF, .OTF, .WOFF, .WOFF2

View font contents in 3 steps

1

Import Font File

Click to upload or drag and drop font files to the page to start local parsing immediately.

2

View font details

View core metadata including font family, designer, version, copyright, and more.

3

Inspect glyphs and characters

Browse the complete character mapping, preview glyph effects, and modify character mappings as needed before downloading.

Why use this font checking tool?

Local processing, fonts not uploaded

Font files are processed only in your browser and are not sent to any server, making it ideal for checking private fonts.

Open to analyze

Powered by opentype.js for fast parsing and rendering, results are displayed almost instantly after upload.

Support character mapping adjustments

Directly adjust character mappings in the character map and export the modified font file.

View key information on one page

Beyond preview, you can also view designer, manufacturer, copyright, and OpenType-related fields.

Frequently Asked Questions

Is it safe to upload private fonts?
Secure. The entire process is completed locally in your browser, and font files will not be uploaded to our servers or any third-party services.
Which font formats are supported?
Supports common TrueType (.ttf), OpenType (.otf), WOFF, and WOFF2 font files.
Why do some glyphs display as blank squares?
Some glyphs do not have direct character encoding assignments, or are themselves ligatures, alternate glyphs, or control characters, and may therefore appear as blank or placeholders in the character mapping.
Can it identify fonts from images?
No. This tool is used to view and inspect existing font files. It does not identify fonts from images.