Remove Duplicate Lines
17 toolsDeduplicate lines in a block of text.
Runs in your browser — your files and text stay on your device
A complete text toolkit — convert case, count words, diff text, sort and dedupe lines, find & replace with regex, generate fancy Unicode text and Lorem Ipsum, check readability, use text-to-speech and speech-to-text, normalize whitespace, apply a Caesar cipher, and check palindromes. All processing happens in your browser tab.
CaseCountDiffLorem IpsumSlug GeneratorRemove DuplicatesWord FrequencyText ReverseLine SorterFind & ReplaceFancy Text GeneratorReadability ScoreText-to-SpeechSpeech-to-TextWhitespace NormalizerROT13 / Caesar CipherPalindrome Checker
0 duplicate lines removed
How to use this tool
- 1Paste a list of lines.
- 2Check "Also sort alphabetically" if desired.
- 3The deduplicated list appears below.
Frequently asked questions
Is the check case-sensitive?
Yes — "Line" and "line" are different.
Which duplicate is kept?
The first occurrence, in original order (unless sorted).