Numbering a list
a and b on two lines become 1. a and 2. b. Starting at 5 with empty lines skipped, "a, (empty), b" becomes "5. a", an empty line and "6. b".
Number every line of a text, or strip the numbers off a numbered list.
Runs in your browser — nothing you enter is sent to a server.
Paste your lines and choose Add: each line gets a number, from the start number you pick, followed by a dot, bracket, colon, tab or space. Line up the numbers to pad short ones with spaces, and skip empty lines if they shouldn't be counted.
Choose Remove to take numbers off a copied list. A number at the start of a line is removed when a dot, bracket, colon, dash, tab or space follows it.
a and b on two lines become 1. a and 2. b. Starting at 5 with empty lines skipped, "a, (empty), b" becomes "5. a", an empty line and "6. b".
1. a, 2) b and 3: c become a, b and c. A word such as v2 is left alone.
Yes. Choose a tab or space after the number and turn on "Line up numbers", so line 9 and line 10 stay aligned.
It can: a line such as "2026 was fine" looks like a numbered line. Check the result if your lines start with numbers that belong to the text.
No. It is processed in your browser.
Sort lines alphabetically, in reverse, by length or with numbers in natural order.
Text Tools
Delete repeated lines from a list, keeping the first occurrence and the original order.
Text Tools
Find and replace text, with whole-word, case-sensitive and regular expression options.
Text Tools