URL Decoder
Decode percent-encoded URLs back into readable text.
Justify Text
Stretch lines to a flush right margin by spacing the words.
Quick Tool Overview
Justify Text stretches each line to a flush right margin by distributing space between the words, the way a typesetter does — and leaves the last line of every paragraph flush left, which is what separates real justification from the naive version.
- What it does
- Justifies plain text to a flush right margin
- You give it
- A paragraph and a column width
- You get back
- Text with even edges on both sides
- Best for
- Print-like plain text and column layouts
About the Justify Text
Justified text has a flush edge on both sides, which is how newspaper columns and most printed books are set. In plain text there is no typesetting engine to do it, so the extra space has to be inserted as actual space characters between the words.
This does that properly. Each line is wrapped to the width you set, then the space needed to reach the right margin is distributed between the words on it — spread evenly, with the remainder going to the leftmost gaps, which is the convention. The last line of every paragraph is left alone rather than being stretched across the full width, because a stretched last line is the single most obvious sign of naive justification.
Key features of the Justify Text
Last lines left alone
A three-word final line is not stretched across seventy characters, which is the giveaway of naive justification.
Even space distribution
The extra space is spread across the gaps with the remainder to the left, the standard typesetting convention.
Wraps first
Text is wrapped to your width before justification, so you can paste an unwrapped paragraph straight in.
River warning
The page explains why narrow columns produce visible white channels, and what width avoids them.
Honest about the trade-off
It says plainly that left alignment reads more easily on screen, so the choice is informed.
How to use the Justify Text
-
1
Paste your text
A paragraph or a document you want set in justified columns.
-
2
Set the column width
The width each line should be stretched to — sixty-five to seventy-five reads best.
-
3
Check the last lines
Paragraph-final lines stay left aligned, which is what a typesetter does.
-
4
Copy the justified text
The spacing is real characters, so it holds in any monospaced context.
Frequently asked questions
Because stretching a three-word last line across a seventy-character column produces enormous gaps. Every typesetting system leaves the final line of a paragraph flush left, and so does this.
Vertical channels of white space that appear when wide gaps on consecutive lines happen to line up. Narrow columns make them worse, which is why justified plain text works better at seventy characters than at forty.
For print-like output, it looks polished. For anything read on screen in a proportional font it will not hold, and for accessibility left-aligned text is easier to read because the word spacing stays even.
Sixty-five to seventy-five characters. Below about fifty, the gaps between words become large enough to be distracting and rivers appear almost immediately.
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