📖 Description

When dealing with multi-version documents or complex code, minor differences can often lead to significant errors:

Code Auditing: Quickly identify logical changes or typos between two versions in a codebase.
Contract Proofreading: Compare legal terms before and after modifications, ensuring control over every punctuation mark and monetary change.
Plagiarism Detection: Assist in checking the overlap between two articles, identifying pseudo-original or spun content.
Data Cleaning: Identify duplicates and new entries in two sets of lists or configuration information.

This site's tool provides "pixel-level" analysis results through a dual-column comparison architecture:

Line-level Comparison: Quickly locate which line was deleted (highlighted in red) or added (highlighted in green).
Character-level Granularity: Within the same line, precisely mark which specific characters or words were changed, leaving no subtle alteration unnoticed.
Synchronous Scrolling: Both panels scroll in real-time, ensuring the comparison view remains aligned.

Side-by-Side Comparison: Classic dual-column layout for intuitively viewing the correspondence between left and right versions.
Inline Comparison: Suitable for mobile viewing, merging deleted and added content within the same line.

Ignore Whitespace/Indentation: When enabled, the system automatically ignores differences caused by formatting adjustments, focusing on textual content changes.
Case Sensitivity Toggle: Choose whether to distinguish between uppercase and lowercase letters based on your needs.
Automatic Deduplication: One-click cleanup of duplicate lines in the text to improve comparison efficiency.

Local Sandbox Execution: The comparison logic is entirely performed in your browser's frontend. Text data is not sent to any server, ensuring absolute security for highly sensitive contracts or private code.

Scenario	Core Focus	Tool Advantage
Software Development	Logic symbols, indentation, variable names.	Accurately identifies code logic changes, preventing bug oversight.
Copywriting & Editing	Typos, punctuation replacements, word order adjustments.	Red and green highlights make modification points clear at a glance.
Administration & Legal	Amounts, dates, changes to disclaimer clauses.	Ensures revised versions fully meet expectations, mitigating risks.
SEO Optimization	Keyword distribution, article uniqueness.	Quickly identifies content duplication points, optimizing originality.

Prepare Text: Paste the "Original Text" into the left box and the "Modified Text" into the right box.
Initiate Comparison: Click the "Start Comparison" button (or enable real-time comparison mode).
View Differences: Observe the highlighted areas. Red represents deletions, green represents additions.
Adjust Settings: If there are too many differences, you can check "Ignore Whitespace" or "Ignore Case" to simplify the results.
Export Results: After confirming the differences, you can take a screenshot or copy the comparison report with one click.

Instant Rendering: Comparison results appear instantly, even for long documents with thousands of lines.
Clean Interface: Optimized for productivity scenarios, free from pop-ups and social distractions.
Responsive Design: Adapts to mobile devices, making it convenient to compare received text message changes anytime, anywhere.
Completely Free: No registration required, no text length limits, enabling professional-level proofreading anytime, anywhere.

Text Comparison