Free Online Text Diff Checker
Compare two texts side-by-side to highlight differences, additions, deletions, and edits.
Highlighted Differences
How to Use the Text Diff Checker
- Paste your original text in the left pane.
- Paste your revised or updated text in the right pane.
- View highlighted additions and deletions instantly.
Key Features
About Text Diff Checker
Quickly identify differences between two revisions of text, code, or documentation. Color-coded side-by-side visual diffs make spotting additions and deletions effortless.
Frequently Asked Questions
Is my proprietary code or confidential text safe to compare?
Yes. The diff algorithm runs purely in your browser's JavaScript execution thread. No text is ever transmitted over the network.
Related & Recommended Tools
Discover complementary utilities for your current workflow.
Word Counter
Count words, characters, sentences, paragraphs, and calculate estimated reading and speaking times in real time.
JSON Formatter & Validator
Format, beautify, validate, and minify JSON payloads with syntax highlighting, error diagnostics, and tree inspection.
Case Converter
Convert text into UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case instantly.
Character Counter
Accurate character count with and without spaces for social media and SMS limits.
Sentence Counter
Count total sentences, average words per sentence, and analyze sentence complexity.
Paragraph Counter
Count paragraphs, average sentences per paragraph, and inspect document structure.