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Duplicate Text Line Remover

World's Simplest Text Tool

World's simplest browser-based utility for removing repeated lines from text. Load your text in the input form on the left and you'll instantly get text with no duplicate lines in the output area. Powerful, free, and fast. Load text lines – get unique text lines. Created by developers from team Browserling.

᠎᠎᠎          Tool Options

Operation Mode

If this option is selected, then all
repeated lines across entire text
are removed, starting from
the second occurrence.
If this option is selected, then only
consecutive repeated lines
are removed.
If this option is selected, then all
lines that appear more than
once are removed.

Newlines, Tabs and Spaces

Leave all empty lines in
the output.
Process newlines as
regular lines.
Before filtering uniques, remove
all newlines.
Before filtering uniques, remove
tabs and spaces from the
beginning and end of all lines.

Sort Lines

After removing the duplicates,
sort the unique lines.

What Is a Duplicate Text Line Remover?

With this tool, you can remove repeated text lines from any text. It offers three different processing modes for doing this operation. The first mode removes all duplicate lines across the entire text (i.e. leaving only the first unique instance of each line). The second mode removes only the duplicate lines that are consecutive (i.e. if three equivalent lines follow each other, it removes the second and third ones). The third mode removes all lines of text that occur two or more times (i.e. leaving only absolutely unique lines of text). You can further refine these operations by adjusting five different options. The first option preserves all newlines. What this means is that newlines get passed through and never get removed. This is useful if you're working with paragraphs of text and want to preserve the logical separation that newlines provide between the paragraphs. The second option filters all newlines. What this means is that all newlines are treated as regular lines and are checked for uniqueness. The third option deletes all newlines from the input and only non-blank lines are left. The fourth option trims lines before processing them. What this means is that all whitespace symbols (such as tabs and newlines) at the beginning of every text line are removed prior to continuing with finding unique lines. The fifth option allows you to sort the lines after they have been filtered. Textabulous!


Duplicate Text Line Remover Examples

Click to try!

Favorite Movies List

This example loads a lengthy movie list in the input but there are a lot of duplicates. After processing the input, all repeated movie titles are removed and only unique text lines are left in the output. Also all accidental blank lines are removed and the output is alphabetically sorted.

The Great Gatsby Beautiful Mind Mr. Nobody Inception The Notebook The Butterfly Effect Beautiful Mind Fight Club The Notebook Inception The Shawshank Redemption Good Will Hunting Beautiful Mind
Beautiful Mind Fight Club Good Will Hunting Inception Mr. Nobody The Butterfly Effect The Great Gatsby The Notebook The Shawshank Redemption
Required options
These options will be used automatically if you select this example.
If this option is selected, then all
repeated lines across entire text
are removed, starting from
the second occurrence.
Before filtering uniques, remove
all newlines.
Before filtering uniques, remove
tabs and spaces from the
beginning and end of all lines.
After removing the duplicates,
sort the unique lines.

Fun Summer Ideas

In this example, we remove only the repeated duplicate lines from a summer ideas list. When performing this operation, the algorithm only looks at the previous line to find out if it's duplicated. Some ideas have whitespace symbols in front so we delete them as well.

Swimming Swimming Swimming Frozen Yogurt Frozen Yogurt Pick Wildflowers Disney Land Taco Truck Taco Truck Play Freeze Tag Swimming Frozen Yogurt
Swimming Frozen Yogurt Pick Wildflowers Disney Land Taco Truck Play Freeze Tag Swimming Frozen Yogurt
Required options
These options will be used automatically if you select this example.
If this option is selected, then only
consecutive repeated lines
are removed.
Leave all empty lines in
the output.
Before filtering uniques, remove
tabs and spaces from the
beginning and end of all lines.
After removing the duplicates,
sort the unique lines.

Filter Unique Emails

In this example, we're trying to find people whom we have forgotten to reply to. We load a list of the most recent emails we have corresponded with from our inbox in the input of this tool. The emails which we have already replied to are duplicated in the list, while those which we haven't replied to yet appear in the list only once. To quickly extract the unique emails and remove all duplicate ones, we select the "Leave Absolutely Unique Text Lines" mode and find two addresses in the out of this tool.

hello@gmail.com hello@gmail.com ciao@gmail.com hello@gmail.com hola@gmail.com bonjour@gmail.com witam@gmail.com hallo@gmail.com witam@gmail.com bonjour@gmail.com hallo@gmail.com bonjour@gmail.com
ciao@gmail.com hola@gmail.com
Required options
These options will be used automatically if you select this example.
If this option is selected, then all
lines that appear more than
once are removed.
Leave all empty lines in
the output.
Before filtering uniques, remove
tabs and spaces from the
beginning and end of all lines.
After removing the duplicates,
sort the unique lines.

Pro tips Master online text tools

You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!

https://onlinetexttools.com/remove-duplicate-text-lines?input=The%20Great%20Gatsby%0ABeautiful%20Mind%0AMr.%20Nobody%0AInception%0AThe%20Notebook%0A%0AThe%20Butterfly%20Effect%0ABeautiful%20Mind%0AFight%20Club%0AThe%20Notebook%0A%0AInception%0AThe%20Shawshank%20Redemption%0AGood%20Will%20Hunting%0ABeautiful%20Mind&all-duplicates=true&delete-newlines=true&trim=false&sort=true

All Text Tools

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Quickly split text into chunks.
Quickly merge lines of text together via a delimiter.
Quickly repeat text many times.
Quickly write text backwards.
Quickly cut text to the given length.
Quickly extract a slice from text.
Quickly trim left or right side of text.
Quickly pad the left side of text.
Quickly pad the right side of text.
Quickly align text to the left side.
Quickly align text to the right side.
Quickly center text.
Quickly add indentation to each text line.
Quickly delete indentation from each text line.
Quickly stretch spaces between words to make all text lines equal length.
Quickly wrap words in text to a specified length.
Quickly reverse every word in the given text.
Quickly reverse every sentence in the given text.
Quickly reverse every paragraph in the given text.
Quickly swap pairs of adjacent letters in words.
Quickly swap pairs of adjacent words in text.
Quickly make every word to be two words in the given text.
Quickly delete certain words from the given text.
Quickly make every sentence to be two sentences in the text.
Quickly delete certain sentences from the given text.
Quickly substitute certain words in text with other words.
Quickly insert random words in random positions in text.
Quickly insert random letters in words in text.
Quickly randomly change letters in text and make mistakes.
Quickly create fake text using similar-looking characters.
Quickly convert fake text containing fake characters to regular text.
Quickly check if the given text is forged (contains homoglyphs).
Quickly delete random letters from words in text.
Quickly delete random symbols from text.
Quickly add patterns before and after each word in text.
Quickly remove patterns appearing before and after each word in text.
Quickly prepend a prefix to one or more text lines.
Quickly append a suffix to one or more text lines.
Quickly remove a prefix from one or more text lines.
Quickly remove a suffix from one or more text lines.
Quickly prepend a prefix to all words in text.
Quickly append a suffix to all words in text.
Quickly remove any prefix from all words in text.
Quickly remove any suffix from the end of all words in text.
Quickly insert characters between all letters of all words in text.
Quickly surround each letter of the text with decorative symbols.
Quickly delete all blank lines from text.
Quickly delete all repeated lines from text.
Quickly return text lines that match a pattern or a regex.
Quickly return words in text that match a pattern or a regex.
Quickly return all sentences that match a pattern or a regex.
Quickly return all paragraphs that match a pattern or a regex.
Quickly sort lines alphabetically, numerically, or by their length.
Quickly sort sentences alphabetically, numerically, or by their length.
Quickly sort paragraphs alphabetically, numerically, or by their length.
Quickly sort words alphabetically, numerically, or by their length.
Quickly sort all letters in all words in any text.
Quickly sort all symbols in text alphabetically.
Quickly randomize the order of letters in text.
Quickly make text barely readable.
Quickly randomize the order of words in text.
Quickly randomize the order of lines in text.
Quickly randomize the order of sentences in text.
Quickly randomize the order of paragraphs in text.
Quickly calculate the sum of letters as if they were numbers.
Quickly remove line breaks and get a continuous text.
Quickly extract a text snippet of the given length.
Quickly find and replace text patterns.
Quickly count the number of characters in text.
Quickly find the most popular letters in the given text.
Quickly find the most popular words in the given text.
Quickly calculate the Shannon entropy of any text.
Quickly find the number of words in text.
Quickly analyze text and print its statistical information.
Quickly find and print all unique words in text.
Quickly find and print all repeated words in text.
Quickly find and print all unique letters in text.
Quickly find and print all repeated letters in text.
Quickly delete all repeated words in text.
Quickly find the number of lines in text.
Quickly add a number before every text line.
Quickly remove line numbering in text.
Quickly create an image from text.
Quickly write the given text in a different font.
Quickly remove all fancy fonts and styling from text.
Quickly use superscript characters to write text.
Quickly use subscript characters to write text.
Quickly use tiny characters to write text.
Quickly use bold characters to write text.
Quickly use italic characters to write text.
Quickly use cursive script to write text characters.
Quickly add an underline below all letters and words in text.
Quickly add a strikethrough to all letters and words in text.
Quickly apply the Zalgo effect to the input text.
Quickly remove the Zalgo effect from the input text.
Quickly construct a palindrome from plain text.
Quickly test if text is a palindrome.
Quickly switch between various letter cases in text.
Quickly convert text letters to uppercase.
Quickly convert text letters to lowercase.
Quickly convert all words in text to title case.
Quickly capitalize the first letter of every word in text.
Quickly randomize character case in text.
Quickly invert character case in text.
Quickly add newlines to paragraphs, lines, sentences, and words.
Quickly remove newlines between text lines and paragraphs.
Quickly replace all line breaks in text with a new character.
Quickly randomize line break count between lines and paragraphs.
Quickly normalize line break count between lines and paragraphs.
Quickly adjust the line break distance in text.
Quickly add a fancy symbol at the end of each line and paragraph.
Quickly replace spaces with newlines in text.
Quickly replace newlines with spaces in text.
Quickly get tabs instead of spaces in text.
Quickly get spaces instead of tabs in text.
Quickly replace all commas with newlines in text.
Quickly replace all newlines with commas in text.
Quickly convert a column of text to a comma-separated text.
Quickly convert a comma-separated text to a column of text.
Quickly replace commas with spaces in text.
Quickly replace spaces with commas in text.
Quickly replace all commas in text with a new character.
Quickly remove repeated spaces between words in text.
Quickly add extra spaces between words in text.
Quickly change the number of spaces between words.
Quickly mess up the spacing between words in any text.
Quickly replace whitespace characters with other characters.
Quickly clear text from spaces, tabs, and newlines.
Quickly clear text from dots, commas, and similar characters.
Quickly remove all accent marks from all characters in text.
Quickly replace each letter in text with the next alphabet letter.
Quickly replace each letter in text with the previous alphabet letter.
Quickly wrap text in quotes.
Quickly delete quotes surrounding text.
Quickly surround all words in pairs of single or double quotes.
Quickly delete quotes surrounding words in text.
Quickly enclose text lines in quotation marks.
Quickly delete quotes that enclose lines of text.
Quickly randomly insert swear words here and there in text.
Quickly mask bad words or replace them with alternative words.
Quickly hide information in text so it can't be read.
Quickly extract tag content from HTML code.
Quickly extract tag content from an XML document.
Quickly extract all textual data from BBCode markup.
Quickly extract keys and values from a JSON data structure.
Quickly convert text to a JSON string.
Quickly convert previously JSON stringified text to plain text.
Quickly escape special symbols in text with slashes.
Quickly remove slashes from previously slash-escaped text.
Quickly encode or decode text using ROT13 cipher algorithm.
Quickly encode and decode text with ROT47 cipher algorithm.
Quickly generate text that has a specific length.
Quickly create text that matches the given regexp.
Quickly find and return all regexp matches.
Quickly highlight parts of text that match a regular expression.
Quickly check whether text matches a regular expression.
Quickly format text using the printf or sprintf function.
Quickly cyclically rotate text letters to the right or left.
Quickly rewrite text to vertical position.
Quickly rewrite text using transformation rules.
Quickly replace letters in text from one alphabet to another.
Quickly substitute certain letters or symbols in text with other letters.
Quickly convert individual letters in text to digits or numbers.
Quickly convert individual digits or numbers in text to letters.
Quickly replace certain words in text with digits or numbers.
Quickly replace certain digits or numbers in text with words.
Quickly replace certain letters and symbols in text with two copies.
Quickly delete certain letters and symbols from text.
Quickly erase some letters from words and preserve the text structure.
Quickly erase some words from text and preserve the text structure.
Quickly create an abstract drawing that shows the structure of the text.
Quickly add highlighting to certain letters in text.
Quickly add highlighting to certain words in text.
Quickly add highlighting to certain patterns in text.
Quickly add highlighting to certain sentences in text.
Quickly substitute certain vowels in text with other characters.
Quickly replace each vowel with two or more vowels in any text.
Quickly delete all vowels from text.
Quickly substitute certain consonants in text with other characters.
Quickly replace each consonant with two or more consonants in any text.
Quickly delete all consonants from text.
Quickly format text so that all words are in neat columns.
Quickly convert data aligned in columns to linear text.
Quickly create a list of all monograms from text.
Quickly create a list of all digrams from text.
Quickly create a list of all ngrams from text.
Quickly create a list of all k-skip-n-grams.
Quickly make letters in text go in a zigzag.
Quickly surround any text in a box.
Quickly write the text in Morse code.
Quickly decode Morse code to plain text.
Quickly calculate the complexity of the given text.
Quickly URL-escape text.
Quickly URL-unescape text.
Quickly convert all plain text characters to HTML entities.
Quickly convert HTML entities to plain text.
Quickly convert text to a user-friendly URL slug.
Quickly encode text to base64.
Quickly decode base64-encoded text.
Quickly convert plain text to binary text.
Quickly convert binary text to plain text.
Quickly convert plain text to octal text.
Quickly convert octal text to plain text.
Quickly convert text to decimal values.
Quickly convert decimal values to text.
Quickly convert plain text to hexadecimal values.
Quickly convert hexadecimal to readable text.

Coming Soon

These text tools are on the way!
Calculate Levenstein Distance

Find Levenstein distance of two text fragments.

Tokenize Text

Create a list of all words in text.

Lemmatize Text

Lemmatize all words in text.

Stem Words in Text

Apply stemming to all words in text.

Color Symbols in Text

Add color to punctuation symbols in text.

Color Letters in Text

Add color to letters in text.

Color Words in Text

Add color to words in text.

Color Sentences in Text

Add color to sentences in text.

Color Paragraphs in Text

Add color to paragraphs in text.

Add Fuzziness to Text

Add slight perturbations to the given text.

Generate Glitch Text

Mess up characters in your text.

Generate Random Text

Generate text using random words.

Generate Lorem Ipsum Text

Generate lorem ipsum placeholder text.

Create a Crossword Puzzle

Generate a crossword puzzle from the given words.

Convert Text to Braille

Convert English text to Braille writing system.

Convert Braille to Text

Convert Braille symbols to English text.

Convert Text to Code Points

Convert text characters to their corresponding code points.

Convert Code Points to Text

Convert numeric character code points to text.

Convert CSV to Text Columns

Convert CSV data to plain text columns.

Convert Text Columns to CSV

Convert plain text columns to a CSV file.

Generate Text Trigrams

Create a list of all 3-grams.

Convert Text to a Number

Encode the entire text to a single number.

Convert a Number to Text

Decode text that was encoded as a number back to text.

Chunkify Text

Divide text into chunks of certain size.

Format Text

Apply formatting and modification functions to text.

Find the Number of Symbols in Text

Count the number of punctuation marks and other sybmols in text.

Find the Number of Letters in Text

Count the number of letters in text.

Find the Number of Sentences in Text

Count the number of sentences in text.

Find the Number of Paragraphs in Text

Count the number of paragraphs in text.

Transform Text

Apply text transformation rules to any text.

Find Patterns in Text

Analyze text for interesting patterns.

Add Diacritics to Text

Add accent marks to text letters.

Enumerate Letters

Add a counter before every letter in text.

Enumerate Words

Add a counter before every word in text.

Enumerate Sentences

Add a counter before every sentence in text.

Enumerate Paragraphs

Add a counter before every paragraph in text.

Interweave Text Fragments

Interleave the letters or words of the given text fragments.

Randomize Letter Spacing

Mess up the spacing between letters in any text.

Find All Email Addresses in Text

Extract all emails from text.

Find All Web Addresses in Text

Extract all URLs from text.

Find All Numbers in Text

Extract all numbers from text.

Find All Countries in Text

Extract all countries from text.

Find All Cities in Text

Extract all cities from text.

Encode Text to Punycode

Convert text to punycode.

Decode Punycode to Text

Convert punycode to text.

Convert Text to Baudot Code

Encode text to Baudot encoding.

Convert Baudot Code to Text

Decode Baudot-encoded text.

Convert Text to Base32

Encode text to base32 encoding.

Convert Base32 to Text

Decode base32-encoded text.

Convert Text to Base45

Encode text to base45 encoding.

Convert Base45 to Text

Decode base45-encoded text.

Convert Text to Base58

Encode text to base58 encoding.

Convert Base58 to Text

Decode base58-encoded text.

Convert Text to Base85

Encode text to Ascii85 encoding.

Convert Base85 to Text

Decode Ascii85-encoded text.

Convert Text to Base65536

Encode text to base65536 encoding.

Convert Base65536 to Text

Decode base65536-encoded text.

Convert Text to Nettext

Encode text to nettext encoding.

Convert Nettext to Text

Decode nettext-encoded text.

Convert Text to Speech

Convert written text into natural sounding voice.

Convert Speech to Text

Convert a voice recording to text.

UTF8-encode Text

Encode text to UTF8 encoding.

UTF8-decode Text

Decode UTF8-encoded text.

UTF16-encode Text

Encode text to UTF16 encoding.

UTF16-decode Text

Decode UTF8-encoded text.

UTF32-encode Text

Encode text to UTF32 encoding.

UTF32-decode Text

Decode UTF32-encoded text.

IDN-encode Text

Encode text to IDN.

IDN-decode Text

Decode IDN-encoded text.

Uuencode Text

Convert text to Unix-to-Unix encoding.

Uudecode Text

Decode Unix-to-Unix-encoded text.

Xxencode Text

Convert text to Xxencoding.

Xxdecode Text

Decode Xxencoded text.

Convert Text to Quoted Printable

Encode text to QP encoding.

Convert Quoted Printable to Text

Decode QP-encoded text.

Strip HTML Tags from Text

Remove all HTML tags from Text.

Strip XML Tags from Text

Remove all XML tags from Text.

Remove Carriage Returns from Text

Remove new line symbols from the end of each text line.

Compare Text

Find the difference between two text fragments.

Create Text Typos

Generate various text typos.

Create a Mirror Copy of Text

Generate a mirror reflection of text.

Cut Text

Cut out a piece of text.

Grep Text

Grep text for regular expression matches.

Head Text

Extract first symbols, words, or lines from text.

Tail Text

Extract last symbols, words, or lines from text

Generate Text Mnemonic

Return the first letter of each word in text.

Duplicate Paragraphs in Text

Make every paragraph to be two paragraphs in the given text.

Create a Word Cloud

Create an image from all words in text.

Create a Letter Circle

Create a circle from all letters in text.

Create a Letter Spiral

Create a spiral from all letters in text.

Create a Word Circle

Create a circle from all words in text.

Create a Letter Matrix

Create a matrix of any dimensions from letters in text.

Create a Word Matrix

Create a matrix of any dimensions from words in text.

Create a Word Spiral

Create a spiral from all words in text.

Split Words into Syllables

Split the input text into syllables.

Draw LCD Text

Write any text on an LCD display (with LCD font).

Draw a 2D Text

Convert text to 2-dimensional drawing.

Draw a 3D Text

Convert text to 3-dimensional drawing.

Create a Text Marquee

Create a horizontally or vertically scrolling text.

Animate Text

Create a GIF animation of a text message.

Slowly Reveal Text Message

Create a GIF animation that slowly reveals a text message.

Mojibake Text

Decode text using the wrong encoding and create garbled text.

Unbake Mojibaked Text

Try to find original text from garbled mojibaked text.

Obfuscate Text

Make text harder to read.

Print the Alphabet

Generate the entire alphabet from a to z.

Randomize the Alphabet

Print the alphabet in random order.

Remove Curse Words from Text

Delete swear words from text.

Edit Text

Edit text in a neat browser-based editor.


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