Font Preview and Comparison
Compare two font stacks side by side using the same text and typography settings. Choose fonts available on your device or load one local font file for each panel. This is a rendering preview rather than a font converter: the original characters stay unchanged.
Key features
- Two independent font panels with a shared sample and typography controls
- Load WOFF, WOFF2, TTF or OTF files up to 10 MiB per panel
- Adjust font size from 12 to 96px, weight from 100 to 900, line height and letter spacing
- Preview multilingual text, punctuation and emoji with browser fallback fonts
- Remove a loaded font or replace it without retaining its file after leaving the page
How to use
- Enter sample text or restore the multilingual example.
- Choose a system font in each panel, or select a local font file.
- Adjust size, weight, line height and letter spacing while comparing the two panels.
- Remove local fonts when finished; refresh or leave the page to clear the session.
Use cases
- Compare a heading and body font before updating a stylesheet
- Check whether a local font contains the Korean, Latin and punctuation glyphs your text needs
- Find comfortable line height and spacing for a mobile article
- Compare a purchased font with a system font without sending the file to a server
Frequently asked questions
Is this the same as a fancy-font text converter?
No. The characters stay unchanged. This tool changes the typeface and CSS typography used to display them. Copying the text elsewhere does not carry its preview font.
Are local font files uploaded or installed on my computer?
No. FontFace loads the selected file into this page’s memory. The tool does not send it to a conversion server, write it to browser storage or install it in the operating system.
Why do some characters look like another font?
When a selected font lacks a glyph, the browser uses another available font. Emoji also commonly use a system color font. The preview does not prove that every displayed glyph belongs to the selected font.
Why can the same system font option look different on another device?
System options are font stacks. The browser uses the first installed font it can find and falls back for missing characters. Font availability and rasterization vary by operating system and browser.
Does the weight control expose every variable-font axis?
No. It requests CSS weights from 100 to 900. A browser may synthesize a weight for a static font; other variable axes and OpenType feature switches are not edited here.
Why was a font file rejected?
Files must be nonempty, at most 10 MiB and use a supported font container. A recognizable header is only the first check: the browser must also decode the font. Damaged or unsupported font tables can still fail.
Privacy
Sample text, font files and settings stay in this page’s memory. This tool does not transmit them or save them to browser storage. Loaded fonts are removed from the page when replaced, removed or when the component closes.
Comments & questions