Text compare

Compare two texts by word or line and highlight additions and deletions. Find changes without uploading documents.

Your inputs stay herePUFFINMINT

Set your data

Original text

Revised text

Compare by

Enter the original and revised text. Choose words or lines: additions are underlined and deletions struck through.

Result

The result updates as you type.

The values you enter stay on this page. Reloading or closing it clears them.

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How to use the tool

Enter the original and revised text.
Choose words or lines: additions are underlined and deletions struck through.
In line mode, turn on Side-by-side view to scroll the original and revised text together. Use the buttons to jump between changes. Copy returns the revised text. ↵ marks a changed line break at the end of the text.

Method and principles

The comparison retains a common subsequence and displays inserted or removed parts.

Case and whitespace matter; Windows and Unix newlines are normalized.

Practical example

Input

Original text: A B
Revised text: A C
Compare by: Lines

Result

A
C

The line with A stays the same. The second line with B is removed and C is added. Copying the result gives you A and C on separate lines.

Options and limits

Each input allows 100,000 characters. The changed region is limited to 2,000 segments per text and 4 million comparison cells. Switch to lines or compare excerpts if exceeded. Meaning is not evaluated.

Example details

Example details
Parameter	Value
Removed characters (struck through)	1
Added characters (underlined)	1

Limits and checks

Limits and checks
Parameter	Value
Original text	≤ 100000 characters
Revised text	≤ 100000 characters

Frequently asked questions

Can I compare texts that are too long for word mode?

Use the button beside the error to try line comparison. If that also exceeds the limit, compare one passage at a time.

PRACTICAL GUIDES

How to extract text from a scanned PDF

A PDF can display words without containing text you can copy. Follow the route from identifying a scan to extracting useful text and checking recognition errors.

Follow the steps