Upload documents or paste text to compare differences
Our free online text comparison tool helps you quickly identify differences between two documents or text files. Whether you're a writer tracking changes in manuscripts, a developer comparing code versions, or a student analyzing document revisions, this tool provides accurate, visual comparisons with detailed statistics.
Compare over 40 file formats including PDF documents, Microsoft Word files, plain text, programming code (JavaScript, Python, Java, C++), web files (HTML, CSS, XML), and data formats (JSON, CSV, YAML).
See changes instantly with color-coded highlighting: green for additions, red for deletions, and side-by-side comparison views that make differences easy to spot.
Get comprehensive statistics including similarity percentage, number of additions, deletions, and total changes to understand the scope of differences between documents.
All processing happens locally in your browser. No files are uploaded to servers, ensuring your documents remain completely private and secure.
Track changes in manuscripts, articles, and documents. Compare different versions of your writing to see what's been added, removed, or modified.
Compare source code files, configuration files, and API responses. Perfect for code reviews and version control analysis.
Analyze document revisions, compare research notes, and track changes in academic papers and assignments.
We support over 40 file formats including:
Our tool uses an advanced word-level comparison algorithm that:
Absolutely! Your privacy is our top priority:
File size limits depend on your browser's memory, but generally:
Yes! This tool is perfect for developers:
The similarity percentage is calculated using the Levenshtein distance algorithm: