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Compare Two Lists

Find what is unique to each list and what they share — A only, B only, both and everything.

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  • Nothing uploaded
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How to Compare Two Lists Online

Compare Two Lists: before and after TXT A BEFORE COMPARE TWOLISTS TXT A AFTER

Compare Two Lists takes list A and list B, pasted or dropped as TXT, CSV or JSON, and shows four results at once: items only in A, only in B, in both, and everything combined without duplicates. Ignore case and trim spaces so "Rahul " and "rahul" count as the same. Use it to check a roll against attendance, an email list against unsubscribes, or two exports of the same table.

Finds what is unique to each list and what they share. All four sets are given — A only, B only, both, and everything — because which one you need depends entirely on the question, and computing the other three costs nothing.

No software to install Free Works on any device

Step-by-Step Guide to Compare Two Lists

  1. 1. Paste a list into each box, or drop a file into either one

  2. 2. Set how each list is separated, then how you want the results sorted and formatted

  3. 3. Copy or download any of the four results, or send one back into a box to compare again

No .txt file to hand? Download a sample text and Markdown file (703 B) and try it.

Try it now

What Does Compare Two Lists Do?

Finds what is unique to each list and what they share. All four sets are given — A only, B only, both, and everything — because which one you need depends entirely on the question, and computing the other three costs nothing.

TXT files

.TXT .CSV .JSON

Find what is unique to each list and what they share — A only, B only, both and everything.

At a glance

  • Takes: Two lists, pasted or as .txt, .csv or .json files
  • Split on: Lines, commas or a separator you type
  • Gives: A only, B only, in both, and everything with duplicates removed
  • Matching: Optional ignore case and trim spaces around each item
  • Output: Sorted naturally (item9 before item10), a copy per panel, and Send to A or Send to B
  • Runs: Comparison happens on your machine; the lists stay in the tab

Why Use Text Tools Online?

Counting words, changing case, pulling emails out of a page or writing an amount in words are small jobs that eat time by hand. These tools do them the moment you paste, and the text stays in your browser.

“Paste once, and let the tool do the fiddly part.”
  • Counts as you type
  • Lists sorted and cleaned
  • QR codes for anything
  • Cheque amounts in words
  • Case changed in one click
  • Emails and links pulled out
  • Citations in APA or Chicago
  • Handy commands for developers

Popular Uses for Text Utilities

Short, repetitive text jobs are what these tools were made for.

  • Essay word limits Check that an essay or application answer is within the word or character limit.
  • Fixing capital letters Turn text typed in CAPS LOCK into normal sentence case without retyping it.
  • Collecting contacts Pull every email address or phone number out of a long message or page.
  • Writing cheques Get a rupee or dollar amount written correctly in words for a cheque or invoice.
  • QR codes Make a QR code for a website link, contact card, email address or event.
  • Reference lists Format a book or website reference in APA or Chicago style for an assignment.
  • Tidying lists Sort lines alphabetically, remove repeats or add numbers to a pasted list.
  • Command helpers Build a cron schedule, git command or chmod setting without searching the manual.

What You Can Do with Compare Two Lists

Accepts TXT, CSV, JSON

Comparison happens on your own machine, at your machine's speed

Sorts naturally, so item10 comes after item9 rather than after item1

Reports how many lines were removed, which is the number that tells you it worked

Why Use ToolXkit for Compare Two Lists?

Your files stay with you

Everything runs inside your browser. Nothing you open or type is uploaded to a server.

Writing and Text Tools for Different Users

Students

Count words, format citations and tidy notes before submitting coursework.

Writers and bloggers

Change case, find repeated words and check length before publishing a piece.

Office workers

Clean up pasted lists, find and replace names and write amounts in words.

Marketers

Extract emails, links and hashtags from pages and make QR codes for campaigns.

Developers

Encode Base64, build cron lines and generate git and shell commands quickly.

Accountants

Write invoice and cheque amounts in words and tidy columns of pasted figures.

Best Times to Clean Up Text

Text tools save time when you are:

  • Keeping to a word limit
  • Fixing text typed in capitals
  • Building a contact list from emails
  • Writing out a cheque
  • Printing a QR code poster
  • Finishing a reference list
  • Removing repeats from a list
  • Setting up a scheduled job

Tips and Good to Know

  1. It matches whole items, not near-matches. "R. Kumar" and "Rahul Kumar" stay different, so clean the names first.

  2. For two spreadsheets with many columns, a spreadsheet comparison is the better fit; flattening them to lists loses the other columns.

  3. It says whether an item is present, not what changed inside it. For line-by-line differences in a document, use a text diff tool.

Frequently Asked Questions

Answers to common questions about this tool.

Do I need to install anything to compare two lists?

No. Compare Two Lists runs entirely in your browser — there is nothing to download, no extension and no desktop program. It works the same on Windows, macOS, Linux, Android and iPhone.

Is it safe to compare two lists online?

Safer than the usual alternative, yes. Most online tools upload your file to a server you know nothing about, where it sits until someone deletes it. Here the file never leaves your device — the processing happens in the page itself, so there is no server copy to leak, retain or sell.

Is my text sent anywhere when I use Compare Two Lists?

No. The text you paste is handled in your browser and never leaves the page. That makes it safe for drafts, customer lists and anything else you would rather keep to yourself.

Is there a limit on how much text I can paste?

The site sets none. Long documents are handled by your own device, so a whole book may be slow on an older phone. Articles, essays and long lists are no trouble.

Can I use Compare Two Lists without making an account?

Yes. There is no login, no email to hand over and no daily limit. Open the page, paste or type, and copy or download the result when it is ready.

Why does my word count differ from Microsoft Word?

Programs treat hyphenated words, numbers and symbols a little differently. The gap is usually a few words in a long piece. If a teacher or portal sets a limit, stay a little under it to be safe.

Do the QR codes made here expire?

No. The information is stored directly in the pattern, with no redirect through our servers, so the code keeps working for as long as the link or text inside it stays valid.

Further reading

  • Unicode Consortium The body that sets how letters, symbols and emoji from every language are stored as text.
  • Letter case (Wikipedia) The rules and names for upper case, lower case, title case and the styles programmers use.
  • Base64 (MDN) A plain explanation of Base64, the encoding used to carry files and images as text.

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