Text to ASCII Art (Fun)

About the Text to ASCII Art Generator

Type a short phrase and it renders as a blocky ASCII banner, five rows tall, drawn from a hand-built letter table covering A to Z, 0 to 9, space, and a handful of common punctuation marks. It's case-insensitive (lowercase letters use the uppercase glyphs), and anything outside the supported set turns into a small placeholder block instead of breaking the output.

Good for retro-style README headers, terminal banners, or forum signatures. Keep the input short since banners scale wide fast, each letter eats up five characters per row.

Exactly which characters are supported, and what an unsupported one looks like

The font table covers all 26 letters, the 10 digits, a plain space, and seven punctuation marks: exclamation point, question mark, period, comma, hyphen, and apostrophe. Anything outside that specific set — an ampersand, an at-sign, a colon, a dollar sign, a quotation mark, or any accented or non-Latin character — doesn't get its own glyph. Instead, the renderer substitutes a solid 5×5 block of hash characters (##### repeated across all five rows) as a visual placeholder, so an unsupported character still occupies its correct width in the banner and doesn't throw off the alignment of the letters around it, but it renders as a filled square rather than a recognizable shape.

The 24-character input limit actually stops you from typing further, unlike a number field's max

The text input carries a maxlength="24" attribute, and unlike a number input's max attribute (which only affects the spinner arrows and validation styling while still letting you type a larger number directly), maxlength on a text field is enforced by the browser during typing itself — once you've typed 24 characters, a 25th keystroke simply doesn't register in the field. That's a meaningfully stronger guarantee than what a similar-looking limit does on some of this site's other number-based tools, since there's no way to type past it and generate output for a longer banner than the field allows.

Lowercase letters borrow the uppercase glyphs rather than getting their own smaller set

Before anything is looked up in the font table, the whole input is run through .toUpperCase(), so "hello" and "HELLO" produce identical output. This is a deliberate simplification rather than an oversight: hand-designing a second, visually distinct 5-row lowercase alphabet that reads clearly at this size and still lines up with the uppercase set's proportions would roughly double the size of the font table for a style of banner art where the block-capital look is the whole point — lowercase ASCII banner letters at 5 rows tall tend to look cramped and less legible than simply reusing the capital forms.

The newline filter is a defensive step for a field that normally can't contain one

The render function explicitly strips out any newline character before building the banner, but the input itself is a single-line <input type="text">, which doesn't let you type a literal line break in the first place — pressing Enter in a text field doesn't insert anything into its value. The filter mostly guards against edge cases outside normal typing, such as certain paste behaviors that could carry a stray newline character into the field's value depending on the browser, rather than something you'd typically encounter just using the tool as intended.

Why each letter costs six columns of width, not five

Every glyph in the font table is exactly five characters wide, but the renderer appends one extra space after each glyph on every row before moving to the next character, so a rendered letter actually occupies six columns of horizontal space in the final banner. Across a full 24-character input, that adds up to a banner as much as 144 columns wide, which is why the result box scrolls horizontally rather than wrapping — a banner phrase of any real length is going to be considerably wider than a typical terminal or code block, and that per-letter spacing is what keeps individual letters visually separated instead of running together into an unreadable block.

Some glyphs use only part of the 5×5 grid, by design

Not every character fills its full five-row, five-column box the way letters like H or M do. The hyphen is drawn as a single horizontal bar sitting only in the middle row, and the apostrophe occupies just a small mark in the upper-left corner with the rest of its grid left blank. That's intentional: forcing every punctuation mark to fill the same visual weight as a full letter would make short marks like a hyphen or apostrophe look disproportionately bold and out of place next to the letters around them, so their glyphs are deliberately sparse to match how those marks actually read at a smaller visual scale.