Graffiti Art Generator

Style guide · soft & rounded

Bubble letters

The friendliest style in graffiti and the first one almost everybody learns: every stroke inflated until the corners disappear, and the inside of each letter left open and round.

Where it comes from

Bubble lettering grew out of the soft, rounded tags that spread across New York subway cars from the early 1970s. As writers moved from quick markers to spray cans, the thin tag lines got fatter, and somewhere in that transition the letters stopped being handwriting and became shapes.

What makes the style durable is that it is a construction method rather than a look. Two writers can produce completely different bubble alphabets — one tall and balloon-like, one squat and wide — and both are still bubble letters, because the method is the same: build the skeleton, then inflate outward.

How it is built

Draw the skeleton at hairline weight

A plain thin outline of the whole word, correctly spaced, with every letter recognisable. This step is boring and it is the entire job. If the word is not readable before you inflate, it will never be readable after.

Thicken every stroke outward from the centre line

Push the outline away from the skeleton in both directions at once. Do not thicken one side of a stroke and then the other — that is what makes bubble letters look lopsided.

Keep the counters open

The counter is the hole inside a letter — inside the bowl of a P, between the arms of an M. In bubble lettering the counter is the letter. When counters close, the word turns into a row of balloons and stops reading.

Regulate the weight, not the width

Every stroke in the piece should feel cut from the same ribbon. Letters can be different widths; they should not be different weights.

Terms you will meet

Counter
The enclosed space inside a letter — the hole in an O, the triangle inside an A.
Bowl
Any curved stroke that closes back on itself, as in B, D, P, R.
Bar
A straight stroke of a letter. The three horizontals of an E are bars.
Skeleton
The thin, plain version of a word that you thicken. Also called the framework.
Weight
How thick the strokes are. Consistent weight is what makes a piece look intentional.

Where it goes wrong

  • Inflating before the spacing is right — Once the letters are fat, you cannot see the gaps any more — and the letters fuse. Fix the spacing at hairline weight and it stays fixed.
  • One over-inflated letter — It is the single most common beginner error and it makes the whole piece look unbalanced. If one letter is heavier than the rest, the eye goes straight to it.
  • Closing the counters — The most damaging and the easiest to miss. Look at the piece from a few feet back: if you cannot see daylight through the holes in your letters, you have gone too far.
  • Thickening the outline instead of the letter — A heavy outline around a thin skeleton produces a letter that looks hollow rather than fat. The fill should be doing the work.

Try it in the generator

Three of the fifteen styles in the studio belong to this family. Each is a different skeleton of the alphabet, so the same word resolves differently in each one.

Bubble Letters — questions

What is the difference between bubble letters and block letters?

Bubble letters are built from inflated round strokes and keep every corner rounded; block letters keep square corners and flat bar ends. They share the same construction method — skeleton first — and differ in what you leave alone.

Why do my bubble letters look like one long balloon?

Because the spacing was set before the letters were fattened, and once they were fattened they touched. Space bubble letters loosely and keep the counters open.

Do bubble letters have to be round?

No. Bubble lettering is a method, not a shape. Tall, narrow, squat and wide bubble alphabets all exist, and they all read as bubble letters because the strokes are inflated rather than drawn.

Make your own bubble letters

Type a word, pick the Bubble style, and export a PNG or true vector SVG — free and entirely in your browser.

Open the generator →