Sort Lines & Remove Duplicates Online Free

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Sort & Dedupe Lines — sort & dedupe lines error runs in your browser · nothing uploaded

Sort

⌃⏎ run · ⎋ clear · / focus input

LINES ⇅ upload

⇅ drop a file to load it

SORTED

send output to

no matches

Handles pastes up to ~5MB smoothly in your browser — bigger files still work, just budget a second or two.

Sort & Dedupe Lines Online

Updated 2026-07-09

Sort lines alphabetically and remove duplicate lines online for free. Paste a list, choose a sort order, and toggle options like de-duplicate, trim whitespace, ignore case, and remove blank lines — the cleaned-up result updates instantly. Everything runs in your browser, so nothing is uploaded.

Cleaning a list by hand is tedious and error-prone. Whether you're tidying exported emails, a keyword list, or config entries, this tool sorts and de-duplicates in one step and tells you how many lines it removed.

// how to use

1 Paste your list (one item per line) into the input panel.
2 Pick a sort order and toggle options like remove duplicates, trim, or ignore case.
3 Copy or download the cleaned-up list from the output panel.

// examples

Sort and dedupe

Input

banana\napple\nbanana\ncherry

Output

apple\nbanana\ncherry

Sort by length

Input

ccc\na\nbb

Output

a\nbb\nccc

// common uses

Cleaning up lists of emails, IDs, or keywords De-duplicating exported data Alphabetising imports, config entries, or word lists Preparing tidy lists for docs and spreadsheets

// faq

Alphabetical A→Z and Z→A, by line length (shortest first), or None to keep the original order while still de-duplicating or cleaning.

Duplicate removal keeps the first occurrence of each line and drops the rest. Enable "Ignore case" to treat lines like "Apple" and "apple" as the same.

Yes — set the sort order to None and keep "Remove duplicates" on. The original order is preserved with later repeats removed.

Trimming each line strips leading and trailing whitespace before comparing and sorting, and removing blank lines drops empty lines from the result.

No — sorting and de-duplication run in your browser, so nothing leaves your machine.

// related

Case Converter Slug Generator Find & Replace Reverse Text Text Repeater

Use this via API

Get a free API key →

curl -X POST https://snaptools.dev/api/v1/tools/sort-lines \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"banana\\napple\\nbanana\\ncherry"}'