Sort lines alphabetically, numerically, by length, or in reverse order.
Enter the lines of text you want to sort.
Select alphabetical, reverse, numeric, or random order.
Click copy to grab the sorted lines output.
Paste a block of lines into this tool and it reorders them in one of four ways: alphabetical, numerical, by length, or reverse order. The block comes back in the new order, ready to copy out. The thing that trips most people up is that alphabetical sorting works on characters, not values: the string '10' sorts before the string '2', because the digit '1' precedes the digit '2' in the character table. When your lines look like numbers, choose the numerical mode, or the ordering will look broken even though the tool did exactly what it was asked.
A concrete input and expected output from the current implementation.
Input
10 9 8 2 1
Expected output
1 2 8 9 10
In numerical mode each line is compared as the value it represents, so 2, 8, and 9 come before 10. The same input in alphabetical mode would return 1, 10, 2, 8, 9, because strings are compared character by character and the digit '1' is smaller than '2', '8', and '9'.
Each mode orders lines by a different key: the characters of the line (alphabetical), the number the line parses to (numerical), or the character count (by length). Lines come back in ascending order of that key, and reverse order flips the result instead of computing a new one. Because the key is computed per line, sorting never merges, splits, or rewrites lines; it only changes their order.
Alphabetical comparison walks two lines character by character from the left, and the first position where they differ decides the order. A line that is a prefix of another, like '10' next to '10A', comes first. Digits, punctuation, and spaces take part in the comparison like any other character, so the result reflects exact text, not the way a dictionary would alphabetize the words.
No. The tool reorders whole lines and does not rewrite their contents, so case, punctuation, and spacing inside a line come back exactly as entered. That is why alphabetical mode can place '10' ahead of '2': the tool sorts the exact text instead of interpreting it. If you see a surprising order, the mode is the thing to change, not the input.
No. Every occurrence is preserved, so duplicates stay duplicates after sorting. To get each line once, deduplicate first and then sort, or sort first: equal lines end up adjacent, which makes repeats easy to spot and delete by hand.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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