TCPTextCheckPro
Text Compare ToolsPopularBrowser-first

Side-by-Side Text Compare

Side-by-Side Text Compare helps you process text quickly without sending your content to a server. It is designed for writers, students, developers, marketers, and everyday productivity workflows.

Tool summary

Input modeDual
Output modeText
Tool typeCompare Side
Compare workspace

Paste both texts and compare changes clearly

Useful for articles, code snippets, JSON, documents, line changes, added content, removed content, and side-by-side text review.

22 words123 chars

Add the first version of your text here.

33 words200 chars

Add the updated version of your text here.

Professional diff editor

Clear text difference viewer

First check the quick difference summary below, then use the editor for full line-by-line review.

Show original text on the left and changed text on the right. Best for document and code comparison.Show all differences in one combined editor view. Useful on smaller screens or quick review.Currently only changed sections are shown. Click to show the full text including unchanged lines.Jump to the previous changed, added, or removed section in the editor.Jump to the next changed, added, or removed section in the editor. Useful for long text.Copy a short summary with similarity score, changed lines, added lines, and removed lines.

Similarity

67%

Similarity is based on shared words between both texts. Higher percentage means both texts are more similar.

Changed

4

Changed means the line exists on both sides, but its text was edited.

Added

1

Added lines are new lines that exist only in the changed text.

Removed

0

Removed lines existed in the original text but are missing from the changed text.

Old lines

4

Total number of lines in the original text box.

New lines

5

Total number of lines in the changed text box.

Quick difference summary

First glance changes

This section shows the most important edited, added, or removed lines first, so you do not need to scan the full document manually.

Red = removedGreen = addedYellow = changedLanguage: plaintext

Changed line 1 → 1

Old

TextCheckPro is a free text tool.

New

TextCheckPro is a free online text tool.
+ online

Changed line 2 → 2

Old

It helps writers compare content.

New

It helps writers, students, and developers compare content.
+ students+ and+ developers

Changed line 3 → 3

Old

The tool is simple and fast.

New

The tool is simple, private, and fast.
+ private

Changed line 4 → 4

Old

Users can copy the result.

New

Users can copy the final result.
+ final

Added line 5

+ New line added for testing.
Editor view for full document reviewLarge text mode ready

Loading diff editor...

Show technical report

Similarity

0%

Added Lines

5

Removed Lines

4

Unchanged Lines

0

Added Words

11

Removed Words

0

Processed output

Wrapped1405 chars
Text Comparison Report
======================

## Summary
Status: Differences found
Similarity: 0%
Unchanged lines: 0
Added lines: 5
Removed lines: 4
Added words: 11
Removed words: 0
Left characters: 123
Right characters: 200
Raw character difference: 77
Comparison character difference: 77

## Added Lines
+ Line 1: TextCheckPro is a free online text tool.
+ Line 2: It helps writers, students, and developers compare content.
+ Line 3: The tool is simple, private, and fast.
+ Line 4: Users can copy the final result.
+ Line 5: New line added for testing.

## Removed Lines
- Line 1: TextCheckPro is a free text tool.
- Line 2: It helps writers compare content.
- Line 3: The tool is simple and fast.
- Line 4: Users can copy the result.

## Word Differences
Added words (11): online, students, and, developers, private, final, New, line, added, for, testing
Removed words (0): None

## Side-by-Side Line Review
Line 1 [changed]
Left : TextCheckPro is a free text tool.
Right: TextCheckPro is a free online text tool.

Line 2 [changed]
Left : It helps writers compare content.
Right: It helps writers, students, and developers compare content.

Line 3 [changed]
Left : The tool is simple and fast.
Right: The tool is simple, private, and fast.

Line 4 [changed]
Left : Users can copy the result.
Right: Users can copy the final result.

Line 5 [changed]
Left : (empty)
Right: New line added for testing.
How to use

Use this tool in a few simple steps

Follow the steps below to process your text quickly and safely.

  1. Step 1

    Paste or type your text in the input box

  2. Step 2

    Adjust options if the tool provides them

  3. Step 3

    Review the result summary and copy the output when ready

Examples

Example input and output

Review sample input and output to understand how this tool works.

Input 1
Example text for TextCheckPro
Output 1
Processed output from Side-by-Side Text Compare
Benefits

Benefits

  • Runs locally in your browser for privacy

  • Fast interface designed for mobile and desktop

  • Reusable output with one-click copy and reset controls

Use cases

Use cases

  • Quickly use side-by-side text compare for daily writing tasks

  • Clean, inspect, or prepare text before publishing

  • Work with private text locally in the browser

FAQ

Frequently asked questions

Quick answers about this tool and how it works.

Is Side-by-Side Text Compare free to use?

Yes. This tool is designed as a free browser-based utility.

Is my text uploaded to a server?

No. This tool is designed to process text directly in your browser where possible.