Can I export or share the diff?

Yes. You can export the result as HTML or copy the diff output for sharing in reviews and notes.

Is it private and offline-friendly?

Yes. Comparison runs locally in your browser and nothing is uploaded. After the first load, it can often work offline.

Text Diff Comparison - Compare Two Texts Side by Side

Comparison Mode:

Sensitivity:

Ignore Whitespace

Ignore Case

Original Text

Lines: 0 Characters: 0

Modified Text

Lines: 0 Characters: 0

How to Use

Basic Comparison

Paste or type your original text in the left panel
Paste or type your modified text in the right panel
Click "Compare Texts" to see the differences
View highlighted changes with statistics

Advanced Features

Load files directly using "Load File" buttons
Choose comparison mode: Side-by-side or Inline
Adjust sensitivity: Line, Word, or Character level
Use options to ignore whitespace or case
Export results as HTML or copy diff format

Text Diff Comparison

Free online compare two texts and highlight differences. Side-by-side comparison with line-by-line and character-level diff visualization.

Developer Tools

How people use it

This browser-based tool is designed to be fast, easy to use, and private by default. Open the tool, adjust the settings, and get results instantly without creating an account or sending files to a server.

Everything runs locally in the browser whenever possible, which reduces friction for users and makes the page more useful as a direct-answer landing page from search.

Common topics

The following topics are closely related to this tool and help explain what it is for:

text
diff
compare
comparison
merge
changes
code
review

Quick answers

What can I compare with this text diff tool?

You can paste or load two texts (code, documents, JSON, etc.) and compare them with side-by-side or inline diff views.

What does sensitivity (line/word/character) mean?

Line compares whole lines, word compares tokens within a line, and character shows the smallest changes for precise edits.

How do Ignore whitespace and Ignore case work?

Ignore whitespace treats spacing differences as unchanged; Ignore case treats A/a as the same. Use them to reduce noisy diffs.

Text Diff Comparison Documentation & Guide

Free online compare two texts and highlight differences. Side-by-side comparison with line-by-line and character-level diff visualization. Perfect for code review, document comparison, and detecting changes.

Overview

Text Diff Comparison is an easy and free online tool that runs in your browser.

What you can do with this tool

Key capabilities (based on the actual UI and code):

Supports files: .txt,.md,.js,.css,.html,.json,.xml,.csv
Runs in your browser (local-first)

Read the full guide forText Diff Comparison