Big Text Generator

The mapping. Characters from ASCII 33 to 126 move by 0xFEE0 into the fullwidth block. A normal space becomes an ideographic space, U+3000, which is also wide. Letters outside that range, including emoji, stay as typed. Hi is two letters, both in range, so both widen. The count is the text you typed, not a count of UTF-16 code units. Fullwidth letters are one Unicode character and often two code units. A counter that uses code units will disagree. This page counts characters.

Boxes. A box is a missing glyph. The conversion still happened. Linux fonts often include Latin and not the fullwidth block. The ASCII art generator draws A, H and I with hash marks so the picture survives those fonts. It only draws those three letters. This page draws any basic Latin letter and then depends on the font.

Length. Forty characters is the cap because a wide line is already visually long. A paragraph of fullwidth text is hard to read and hard to select. Use a short label.

Paste the wide line into the destination and look. If the destination’s font substitutes boxes, the label has failed even though this page produced the characters. Keep the plain spelling in the same note. Search will not treat the wide letters as the plain letters. A name you need people to find should stay in basic Latin, with the wide form only as a display extra you have already seen render.

Wide letters are a display choice for a heading of one or two words. They are a poor choice for a sentence, because the line becomes a ribbon and the font may substitute boxes halfway through. Type the heading, press Widen, and look at every character. One box means that character’s wide form is missing even if its neighbours drew. The plain spelling should sit in the title attribute or in a second line a search can read. Forty characters is already a long heading in this form. If you need a banner that cannot box, switch to the hash-mark tool and accept that only A, H and I are drawn. Mixing the two tools in one heading is confusing. Pick one and keep the plain text beside it.

Hi and Wow differ by one character in the count, which is the check that the mapping did not drop a letter. A box still counts. The count is taken before the mapping, from the text you typed. If you typed three letters and the wide line looks like two plus a box, the count should still say 3. Trust the count, then change fonts or change tools. Do not retype the wide letters by hand. You will not hit the same code points.

Two letters

Inputs: Text: Hi

Leave the text as Hi and press Widen. The count is 2.

Result: Fullwidth: Ｈｉ Characters: 2 Fullwidth letters are wide Unicode forms. If a character is a box, the font has no glyph for it. The character count is the text you typed, not the wide forms.

A three-letter word

Inputs: Text: Wow

Change the text to Wow and press Widen. The count is 3.

Result: Fullwidth: Ｗｏｗ Characters: 3 Fullwidth letters are wide Unicode forms. If a character is a box, the font has no glyph for it. The character count is the text you typed, not the wide forms.

Why a box instead of a wide letter?

The font has no fullwidth glyph. The character is still in the string.

Does Hi become two characters or four?

Two Unicode characters. Some counters that use UTF-16 code units will say more.

What happens to a space?

It becomes an ideographic space, which is also wide.

Can I widen an emoji?

No. Characters outside ASCII 33–126 stay as typed.

Is this the hash-mark banner?

No. That banner only draws A, H and I. This page uses fullwidth letters.

Is the text uploaded?

No. The mapping runs in the browser.