Text Diff Tool
Compare two texts side-by-side with highlighted differences
Original Text
Modified Text
Compare Two Texts
Paste your original text on the left and modified text on the right to see the differences highlighted.
Keyboard Shortcuts
Common Use Cases
Code Review
Compare code changes
Document Editing
Track document changes
Config Files
Compare configurations
Version Control
Review version diffs
Frequently Asked Questions
What is a text diff tool?
A text diff tool compares two pieces of text and highlights the differences between them. It shows what has been added, removed, or changed, making it easy to track modifications between versions of documents, code, or any text content.
How does the comparison work?
Our diff tool uses an efficient algorithm (Longest Common Subsequence) to compare texts line by line. It then detects modified lines and highlights the specific words or characters that changed within those lines, making it easy to see exactly what was different.
Is my text data secure?
Yes, absolutely. All text comparison is performed entirely in your browser using client-side JavaScript. Your text is never sent to any server, ensuring complete privacy. No data is stored, logged, or transmitted.
What highlighting modes are available?
The tool offers three highlighting modes: Line highlights entire changed lines, Word highlights the specific words that changed within lines, and Char provides character-level highlighting for the most granular view of changes.
Can I compare code files?
Yes! This tool works great for comparing code, configuration files, documentation, or any text content. It preserves whitespace and formatting, making it ideal for code review and version comparison. Use the “Ignore whitespace” option if you want to focus on actual content changes.