Fontanello
Inspect a page’s font family, sizing and text styling from the right-click menu.
What’s included for free?
Open-source font-inspection extension for supported browsers. It reveals styling; it does not grant a licence or access to commercially licensed font files.
Where it runs: Browser
Provider information ↗Checked 2026-10-14
Before you use it
MIT for extension source. Fonts inspected on external websites retain their own licences.
Provider terms can change. Check current pricing and usage rights before starting a project.