Text comparison
See changes between two pieces of text.
XKIT / COMPARE
Comparison tools.
Find the differences that matter in text, files, and images.
04TOOLS IN THIS COLLECTION
Search tools
THE TOOL INDEX
All your tools4
4 tools shown
Choose the right tool for your task
Comparison tools reveal differences between two inputs. Choose the tool by what needs to be compared: text characters, extracted document text, spreadsheet cell values, or image appearance.
How do I compare two versions of text?
Paste each version into the text comparison tool and inspect additions and deletions. This helps review edits and configuration changes, but does not determine whether a change is correct.
Compare timeout=30 with timeout=60 to identify the changed value before reviewing its effect in the application.
Open Text comparisonDoes Excel comparison match rows by an ID?
No. XKit compares cell values by position in the first worksheet. It does not match rows by an identifier, compare formatting, or recalculate formulas. Align the sheets before comparing them.
If a row is inserted near the top, later rows can appear changed because their positions shift, even when their values have not changed.
Open Excel comparisonShould I compare a document as text or as an image?
Use document comparison when the wording is what matters. Use image comparison to inspect visual changes. Extracted document text does not preserve every detail of the original layout.
A changed paragraph is a text difference. A moved logo or altered page spacing is a visual difference that may require comparing rendered images.
Open Document comparisonWhat to check before using the result
A difference report shows changes, not their importance or correctness. Review original files when formatting, formulas, worksheet order, or visual layout affects your decision.
What Are Diff Tools?
Diff tools (difference tools) are essential utilities for comparing two versions of files, documents, or text to identify and visualize changes. Whether you're comparing code, documents, images, or spreadsheets, diff tools highlight additions, deletions, and modifications between versions.
100% Private • Browser-based • No uploads
Specialized Tools for Every Format
Text Comparison Tool
Compare plain text, code, configuration files, and any text-based content. Features line-by-line and character-by-character comparison with color-coded highlighting for additions, deletions, and changes. Perfect for code review and version control.
Document Comparison Tool
Compare Word documents, PDFs, and other formatted files to track changes in content, formatting, and structure. Identify text modifications, added paragraphs, deleted sections, and formatting changes. Ideal for legal documents, contracts, and reports.
Image Comparison Tool
Compare images side-by-side to spot visual differences, highlight pixel changes, and detect variations between designs. Useful for design reviews, quality assurance, and detecting image manipulation or changes in screenshots.
Excel & CSV Comparison
Compare spreadsheets to identify differences in data, formulas, and cell values. Track changes in Excel files and CSV data for data validation, reconciliation, and audit purposes. Highlights row and column differences clearly.
Why Choose Our Tools?
100% Free
All comparison tools are completely free with no limitations, subscriptions, or hidden costs.
Privacy First
All file processing happens locally in your browser. No uploads, no server storage, complete privacy.
No Signup Required
Start comparing files immediately without creating an account or providing personal information.
Multiple Format Support
Compare text, code, documents, images, Excel files, and more with specialized tools.
Visual Highlighting
Color-coded differences make it easy to spot additions (green), deletions (red), and changes.
Side-by-Side View
Compare files side-by-side for easy visual comparison and analysis.
Fast Processing
Instant comparison results with no server round-trips or waiting times.
Responsive Design
Works seamlessly on desktop, tablet, and mobile devices for on-the-go comparisons.
Perfect for Every Workflow
1
Code Review & Version Control
Compare code changes before and after commits, review pull requests, validate refactoring work, and spot unintended modifications. Essential for Git workflows, code audits, and collaborative development.
2
Document Version Tracking
Track changes between document versions, compare contract revisions, review edited manuscripts, and validate document updates. Critical for legal reviews, content editing, and document management workflows.
3
Data Validation & Reconciliation
Compare spreadsheets to validate data accuracy, reconcile financial records, verify data migrations, and detect discrepancies between datasets. Essential for accounting, data quality, and ETL validation.
4
Configuration Management
Compare configuration files across environments (dev, staging, production), validate infrastructure-as-code changes, and track configuration drift. Important for DevOps, system administration, and deployment management.
5
Quality Assurance & Testing
Compare test outputs with expected results, validate API responses, compare screenshots for visual regression testing, and detect UI changes. Critical for automated testing and QA workflows.
6
Legal & Compliance Review
Compare contract versions, track changes in legal documents, review policy updates, and validate compliance documentation. Essential for legal teams, compliance officers, and contract management.
Frequently Asked Questions
What file types can I compare?
You can compare various file types including plain text (.txt), code files (.js, .py, .java, etc.), configuration files (.json, .yaml, .xml), documents (.docx, .pdf), images (.png, .jpg, .gif), and spreadsheets (.xlsx, .csv). Each tool is optimized for specific file types.
How accurate is the comparison?
Our diff tools use industry-standard algorithms (like Myers diff) that are proven and widely used in version control systems like Git. The comparison is highly accurate and reliably identifies all differences between files.
What's the maximum file size I can compare?
File size limits depend on your browser's memory. Most modern browsers can handle files up to 5-10MB for text comparison. Image and document comparison may have lower limits. Very large files may cause performance issues depending on your device.
Do diff tools work offline?
Yes, once the page is loaded, most diff tools work offline since all processing happens in your browser. You need an initial internet connection to load the tool, but after that, no connection is required for file comparison.