Bubble Puffy Serif
Display1 style17 languages
H S $ I O a
Display · 1 style · 149 characters · Version 0.1.2 · Published November 5, 2026
Bubble Pillow Square uses heavy continuous strokes with rounded-square bowls and broad pill-like stems. The inner spaces remain open in the large sample, while the flattened sides keep the outlines from becoming perfect circles.
Aa
HS$IOa
Direction
Keep a wordmark study short enough for the real frame, and leave trademark and production checks to their own process.
These hypothetical names use the same font in two preview sizes. The paired rows let you compare how each wording occupies the same typographic scale and how the longer phrases compress at thumbnail size.
The measured advances are 2.570em for Moon, 6.595em for Moon Market and 9.223em for Moon Market Club. Each name appears once at 64px and once at 32px; the line widths are font advances, not fitted logo-frame measurements.

This separate name comparison pairs the rounded-square face with a conventional serif on the same wording and size.
Both lines use Market Day at 64px, so the letter shapes can be compared directly without repeating the three-length ladder above.

The base file and linked 3D sibling use the same new phrase so their edge treatment is easy to compare.

Test
Type the words you plan to use and adjust size, line height, and letter spacing. The preview uses the final font file.
The quick brown fox jumps over the lazy dog
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Rendered from the font files, without retouching.







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The lowercase o in “Moon” has a broad rounded-square counter, visible in the name-length samples.
The lowercase a in “Market” has a single-storey bowl with a right-hand stem, visible in both the name-length and companion comparison images.
Across the three pictured names, the face uses heavy continuous strokes and broad pill-like stems; compare the different line widths at each of the two sizes.
Good for
Use it for a short concept wordmark or package name when a broad, soft silhouette is wanted.
Check before using
The widest phrase in the measurement set advances 9.223em before tracking or surrounding graphics are added; verify the actual layout width before setting a long name.
About
Its x-height is 73.5% of the cap height, near the 73.5% typical of display fonts in the library. Ascenders on b, d, h, k and l rise 3.3% above the capitals, and descenders on g, j, p, q and y drop 24.3% of the cap height below the baseline. The o is close to a circle, 1.08 times as wide as it is tall, and W is the widest capital, at 1.19 times the width of H. Round letters overshoot: O rises 0.9% of the cap height above H and dips 1.1% below the baseline.
The letters stand upright, leaning less than 2.5° either way. Vertical stems measure 30.3% of the cap height. The contrast is mild: the sides of o and O are 1.24 times as thick as their tops and bottoms.
Its 148 characters include 105 Latin letters, plus 43 figures, punctuation marks and symbols; 53 of the Latin letters are accented or special forms beyond A to Z. The word space measures 45.8% of the cap height, and the blank space either side of a lowercase letter takes up 12% of its width. The font carries no kerning, so spacing comes from each letter’s own side bearings. The figures have different widths, so columns of numbers set in Bubble Pillow Square will not line up exactly.
Measured from the version 0.1.2 font file. Comparisons are with the 1 published library fonts measured on November 4, 2026, 1 of them display fonts.
Characters
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Method
AI assisted the observations and sample compositions. The examples use the named font files; measurements describe the supplied font files, and preview settings are illustrative.
The current text and font-file specimens received an independent review.
Bubble Pebble Sans supplies a similarly rounded, filled party heading. On the fixed “PARTY TIME!” line it uses 6.968 em versus 6.802 em here, so it needs a little more horizontal room at the same em size.
Bubble Squircle Block replaces the round o shapes in “Moon” with visibly squared O, a and g counters. Its g advances 0.559 em instead of 0.616 em here, offering a tighter lowercase measure with a more rectangular silhouette.
FAQ