On a website
- Right-click the text → Inspect.
- In the Styles panel, find font-family, or check the Computed tab and scroll to Rendered Fonts (Chrome) to see the font actually used.
From an image
Upload a clear, straight, high-contrast crop of the text to a font-matching tool (several free ones exist, including tools from major font marketplaces). Crop to a single line and include distinctive letters like g, a, R and Q.
Spot it yourself
Look at: serifs or not; round vs geometric “o”; the shape of “g” (one or two storeys); the tail of “Q”; and the terminals of “a” and “t”.
Found a paid font?
Check our free alternatives, for example Montserrat for Gotham or Jost for Futura.