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Text Tools

Text Sorter & Deduplicator

Sort lines alphabetically and remove duplicates. Use when cleaning lists; for comparing two texts use text-diff-visual. Input: text lines ≤10MB. Returns sorted unique lines. 100% client-side.

Sort lines alphabetically or reverse

Remove duplicates and empty lines

Randomize line order

Copy the sorted output

Next steps

Press for keyboard shortcuts

100% Client-Side
Your Data Stays Local
No Account Required

About

Text line sorter with 8 modes: A-Z, Z-A, length ascending, length descending, numeric sort, natural sort (human-friendly), reverse order, and randomize. Supports deduplication, empty line removal, trimming whitespace per line, case-sensitive toggle, and a paste button for quick input from clipboard.

Sorting lines of text manually is slow and error-prone. This tool provides a variety of sort orders and preprocessing options so users can organize any list-based text in one click.

This tool is part of the DevStackIO platform — a collection of free online developer tools from DevStackIO. Browse more free developer resources on DevStackIO.

Who should use this tool?

Anyone who works with lists, CSV extracts, keyword collections, code imports, or any line-delimited text that needs ordering or deduplication.

Common use cases

Sort a list of names alphabetically (A-Z) for a mailing list
Find the longest and shortest lines in a dataset using length ascending/descending
Remove duplicate lines from a combined CSV extract
Randomize a list of raffle entries or quiz questions
Naturally sort file names containing numbers (e.g., file2, file10, file20) using natural sort
Reverse the order of a chronologically ascending list to make it descending

Key Features

Sort lines alphabetically or reverse
Remove duplicates and empty lines
Randomize line order
Copy the sorted output

How to use

Paste or type text (one item per line) into the input area; use the paste button to quickly load clipboard content.

Select a sort mode: A-Z, Z-A, Length ↑, Length ↓, Numeric, Natural, Reverse, or Randomize.

Toggle case-sensitive sorting on or off — when off, all lines are compared case-insensitively.

Enable Remove Duplicates, Remove Empty Lines, and Trim Each Line as needed via checkboxes.

Click Sort to process the text; the output appears in the result area with line count shown.

Use the copy button to copy the sorted output to your clipboard.

Examples

Input: lines "banana", "Apple", "cherry", "Banana", "" with A-Z sort, case-insensitive, remove duplicates, remove empty → Output: ["Apple", "banana", "cherry"] (4 lines → 3 lines)

Input: lines "file2.txt", "file10.txt", "file1.txt", "file20.txt" with Natural sort → Output: ["file1.txt", "file2.txt", "file10.txt", "file20.txt"] (numeric-aware ordering)

Best practices

Enable Remove Duplicates when merging lists from multiple sources to get a unique set
Use Natural sort for file names, version numbers, or any text containing embedded numbers
Enable Trim Each Line before sorting to avoid leading/trailing spaces affecting the order
Use A-Z for general alphabetization and Z-A for reverse-alphabetical reference lists
Use Randomize for unbiased shuffling — the tool uses a cryptographically seeded randomizer

Common mistakes

Using alphabetical sort on numeric data — use Numeric sort for proper ordering (10 > 2)
Forgetting to enable case-insensitive sorting, causing "Apple" and "apple" to appear far apart
Assuming duplicate removal is case-sensitive — "Apple" and "apple" are treated as distinct when case-sensitive is on
Using Reverse when Z-A would produce the correct actual reverse-alphabetical order
Not trimming lines first — a trailing space changes the sort position and makes duplicates invisible

FAQ

What is the difference between Numeric and Natural sort?

Numeric treats each line as a number; Natural sorts by text but recognizes numeric sequences within text (e.g., file2 < file10).

Does Randomize produce the same order every time? No

each click produces a fresh random order using a cryptographically secure PRNG.

How large an input can the tool handle?

Up to 100,000 lines or 5MB of text; larger inputs may cause performance degradation.

Can I sort by a specific column or delimiter? Not in this tool

each line is treated as a single item. Use a spreadsheet for columnar sorting.

References

Authoritative specifications, standards, and in-depth reading for Text Sorter & Deduplicator.

MDN — Array.sort

Text Tools

Text Sorter & Deduplicator

Sort lines alphabetically and remove duplicates. Use when cleaning lists; for comparing two texts use text-diff-visual. Input: text lines ≤10MB. Returns sorted unique lines. 100% client-side.

Sort lines alphabetically or reverse

Remove duplicates and empty lines

Randomize line order

Copy the sorted output

Remove duplicatesRemove Empty LinesTrim whitespaceCase Sensitive

Input (one per line)

Output (6 lines)

123
45
apple
banana
cherry
date

Input: 6 linesAfter filters: 6 linesOutput: 6 lines

Next steps

Press for keyboard shortcuts

100% Client-Side
Your Data Stays Local
No Account Required

About

Sorting lines of text manually is slow and error-prone. This tool provides a variety of sort orders and preprocessing options so users can organize any list-based text in one click.

This tool is part of the DevStackIO platform — a collection of free online developer tools from DevStackIO. Browse more free developer resources on DevStackIO.

Who should use this tool?

Anyone who works with lists, CSV extracts, keyword collections, code imports, or any line-delimited text that needs ordering or deduplication.

Common use cases

Sort a list of names alphabetically (A-Z) for a mailing list
Find the longest and shortest lines in a dataset using length ascending/descending
Remove duplicate lines from a combined CSV extract
Randomize a list of raffle entries or quiz questions
Naturally sort file names containing numbers (e.g., file2, file10, file20) using natural sort
Reverse the order of a chronologically ascending list to make it descending

Key Features

Sort lines alphabetically or reverse
Remove duplicates and empty lines
Randomize line order
Copy the sorted output

How to use

Paste or type text (one item per line) into the input area; use the paste button to quickly load clipboard content.

Select a sort mode: A-Z, Z-A, Length ↑, Length ↓, Numeric, Natural, Reverse, or Randomize.

Toggle case-sensitive sorting on or off — when off, all lines are compared case-insensitively.

Enable Remove Duplicates, Remove Empty Lines, and Trim Each Line as needed via checkboxes.

Click Sort to process the text; the output appears in the result area with line count shown.

Use the copy button to copy the sorted output to your clipboard.

Examples

Input: lines "banana", "Apple", "cherry", "Banana", "" with A-Z sort, case-insensitive, remove duplicates, remove empty → Output: ["Apple", "banana", "cherry"] (4 lines → 3 lines)

Input: lines "file2.txt", "file10.txt", "file1.txt", "file20.txt" with Natural sort → Output: ["file1.txt", "file2.txt", "file10.txt", "file20.txt"] (numeric-aware ordering)

Best practices

Enable Remove Duplicates when merging lists from multiple sources to get a unique set
Use Natural sort for file names, version numbers, or any text containing embedded numbers
Enable Trim Each Line before sorting to avoid leading/trailing spaces affecting the order
Use A-Z for general alphabetization and Z-A for reverse-alphabetical reference lists
Use Randomize for unbiased shuffling — the tool uses a cryptographically seeded randomizer

Common mistakes

Using alphabetical sort on numeric data — use Numeric sort for proper ordering (10 > 2)
Forgetting to enable case-insensitive sorting, causing "Apple" and "apple" to appear far apart
Assuming duplicate removal is case-sensitive — "Apple" and "apple" are treated as distinct when case-sensitive is on
Using Reverse when Z-A would produce the correct actual reverse-alphabetical order
Not trimming lines first — a trailing space changes the sort position and makes duplicates invisible

FAQ

What is the difference between Numeric and Natural sort?

Numeric treats each line as a number; Natural sorts by text but recognizes numeric sequences within text (e.g., file2 < file10).

Does Randomize produce the same order every time? No

each click produces a fresh random order using a cryptographically secure PRNG.

How large an input can the tool handle?

Up to 100,000 lines or 5MB of text; larger inputs may cause performance degradation.

Can I sort by a specific column or delimiter? Not in this tool

each line is treated as a single item. Use a spreadsheet for columnar sorting.

References

Authoritative specifications, standards, and in-depth reading for Text Sorter & Deduplicator.

MDN — Array.sort

On this page

Text Sorter & Deduplicator

Next steps

About

Who should use this tool?

Common use cases

Key Features

How to use

Examples

Best practices

Common mistakes

FAQ

References

On this page

Text Sorter & Deduplicator

Next steps

About

Who should use this tool?

Common use cases

Key Features

How to use

Examples

Best practices

Common mistakes

FAQ

References

Text Diff Visualizer

Duplicate Line Remover

Find and Replace

Reverse Text

Line Break Converter

Word Counter

Markdown Preview

Slug Generator

Text Sorter & Deduplicator

Next steps

About

Who should use this tool?

Common use cases

Key Features

How to use

Examples

Best practices

Common mistakes

FAQ

References

Share

Text Sorter & Deduplicator

Next steps

About

Who should use this tool?

Common use cases

Key Features

How to use

Examples

Best practices

Common mistakes

FAQ

References

Share

Text Diff Visualizer

Duplicate Line Remover

Find and Replace

Reverse Text

Line Break Converter

Word Counter

Markdown Preview

Slug Generator