Free · in your browser · no sign-up
Test, compare and pair fonts — before you write a line of CSS.
Type a word and see it in 1934+ fonts at once. Pair a heading with a body font against real layouts. Or inspect any font file’s axes, features and glyphs. Fast, private, and shareable by link.
Compare
Font tester
Type a word and see it instantly across hundreds of fonts. Filter by style, change size, weight and background.
Open →Combine
Font pairing
Pair a heading font with a body font and preview them against real layouts — an article, a hero, a business card.
Open →Analyse
Font inspector
Drop in a font file to reveal its variable axes, OpenType features, glyph set and licence — all in your browser.
Open →Popular pairings
Heading + body combinations that just work
Guides
Learn the craft
Roundup
The best monospace fonts for code
The best free monospace fonts for coding — JetBrains Mono, IBM Plex Mono, Fira Code and more — picked for legibility, clear punctuation, distinct zeros and ligatures.
Explainer
Variable fonts, explained simply
What variable fonts are, how their axes (weight, width, optical size) work, why one file can make your site faster, and how to try them — in plain language, with live examples.
Guide
Font pairing: a practical guide with examples
How to pair fonts that work together — the contrast principle, four reliable formulas, ready-made combinations like Playfair + Inter, and the mistakes that make pairings look broken.
Why FontTest?
Choosing type is hard to do in your head. The same word can feel trustworthy in one font and playful in another, and a heading that looks great on its own can fight with the paragraph beneath it. FontTest lets you see the decision instead of imagining it.
Everything happens in your browser. Fonts are loaded on demand from Google Fonts, nothing you type is sent anywhere, and every view has a shareable link — so you can drop a pairing into a chat and your teammate sees exactly what you see.