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About this tool
Create launch, event and update announcement graphics from templates, with a modular type scale and a countdown line.
An announcement graphic is the image that carries a launch, an event date, a new hire or a maintenance window, and this generator builds one from six templates at real placement sizes. Type sizes come off a modular scale rather than being picked by hand: the headline sits at step zero and each supporting line drops one step, multiplied by a chosen ratio — minor third 1.200, major third 1.250, perfect fourth 1.333 or the golden ratio 1.618 — which is what keeps the hierarchy readable at any canvas size. Give the tool a date and a reference day and it adds a countdown line calculated in whole UTC days.
Open Announcement Graphic Generator on AltFTool — it loads instantly in your browser.
Provide your input — an image, text, or data.
Let the tool analyze or generate the result.
Review, refine, and reuse the output wherever you need it.
Every size is derived from one ratio, so headline, subhead and CTA never end up nearly the same size.
Flags a headline less than 1.5x the subhead, the point where the two sizes stop reading as a hierarchy.
The reference date is an input, not the system clock, so the same settings always produce the same graphic.
It is a set of font sizes generated by repeatedly multiplying a base size by a fixed ratio. With a perfect fourth (1.333) and a 100px headline, the next step down is 75px and the one after that is 56px. Using a scale instead of arbitrary numbers is what makes a hierarchy look intentional.
A perfect fourth (1.333) is the safe default for display type — big enough a jump to be obvious, small enough that three steps still fit a canvas. Use the golden ratio (1.618) for a dramatic single-headline layout, and a minor third (1.200) when you have four or more levels to fit.
Under about 45 characters, or roughly six words. This tool refuses anything over 90 characters because past that the headline has to be set too small to work at feed size — that detail belongs in the subhead or the caption.
So the calculation is reproducible. The days are counted between two UTC midnights you supply, which means the graphic renders identically on any machine and in any time zone, and you can generate a post dated for the day you actually intend to publish.