Discover web fonts, Google Fonts, and system fonts. Get families, weights, sizes, usage details, and font-loading performance insights. One API call.
curl "https://fontspy.grabshot.dev/v1/detect?url=https://stripe.com" \
-H "x-api-key: YOUR_KEY"Detects every font family used on a page — web fonts, system fonts, and Google Fonts.
See all font weights and sizes used, plus which HTML elements use each font.
Automatically identifies fonts loaded from Google Fonts and other CDNs.
Get a performance score with actionable tips: font-display, WOFF2 usage, file count.
Lists all font files loaded with URLs and sizes. Track your font payload.
50 free detections per month. No credit card required to start.
Enter a website URL to detect all fonts used
Detecting fonts... This takes a few seconds.
Start free, upgrade when you need more