Font Finder AI is a free tool that identifies a typeface from a picture. Drop in a screenshot, crop the lettering, and it matches the letterforms against a pre-computed index of all 1,935 open-source Google Fonts — ranking the closest faces, pointing you to free alternatives when the original is a paid font, and handing you copy-paste CSS for the one you pick.
Why we built it
Identifying a font used to require either the file itself, a paid subscription, or the patience to answer a twenty-question quiz about whether the a is double-storey. For the most common case — "I have a picture, what is this typeface?" — none of those fit. So we built the thing we wanted: a page where the pixels themselves do the talking, with no uploads, no accounts and no paywall.
Privacy as the default
Screenshots are often sensitive — unreleased designs, internal dashboards, branded materials. So the identification engine runs entirely in your browser. The image is decoded with canvas APIs, compared against a signature index that ships with the page, and never leaves your machine. There is no server that sees your image, and nothing to sign up for. Privacy isn't a premium feature; it's the architecture.
The free-licence angle
A lot of famous type is commercial, and a lot of well-meaning people copy it anyway because the licence is unaffordable. We'd rather give you a twin you can actually ship. Every font in our library is open source and free for commercial use, and when the matcher finds a shape that resembles a paid face, it suggests the closest legal alternative — matched by measured proportions, not by guesswork.
How the matching is built
The signature index is generated from the real Google Fonts files: each outline is rendered, segmented and reduced to a 16×16 binary grid for 62 characters in regular and bold weights, alongside measured x-height, stem weight, contrast and letter width. The matching pipeline binarises your image, isolates letters, and scores every font by Hamming distance over those grids, then verifies the top candidates by re-rendering the word and comparing it to your crop. You can read more in our guides.
What's in the library
All 1,935 families from the Google Fonts catalogue — sans-serif, serif, display, handwriting and monospace — with the weights and italics each family ships with, plus measured shape data used for the similar-fonts rankings on every font page.
Questions or feedback
Found a bug, spotted a font we should index, or want a feature? Contact us. For the frequently asked questions, the FAQ has the details.