Set your type, see how it actually reads — on screen and in print.
Good typography isn't a matter of taste — it's a matter of whether people can read the thing. This tool takes a font and a set of details — size, weight, line height, tracking, line length — and checks them against the WCAG readability thresholds, in whatever units you actually work in. Pick from Google Fonts, or drop in a licensed font of your own; the file stays on your machine.
One trend worth naming: negative tracking. Squeezing letters to -4 in Figma has become a reflex, applied to everything down to body copy. But letter-spacing is a large-size tool — big type looks loose at default spacing, so pulling it in a touch refines it. On text you actually read, tight tracking removes space the eye needs, and past about -0.03em it fails the WCAG text-spacing test outright: force the spacing wider, as a low-vision reader can, and the letters collapse into each other. Set tracking in em, not fixed pixels, so it scales with the type — and on running text, zero (optical) is usually exactly right.
Screen and print aren't the same discipline, and neither is the junior one. These thresholds are tuned for screen reading. Print is its own craft: minimum legible size and safe stroke weight depend on the method, the ink, and the stock — ink gain can close up counters that looked crisp on a monitor. When it goes to press, the specs come from your printer, not from a slider. Different rules, equal rigour.