Text Difference Checker – Compare Text Online

Text Difference Checker

🔍 Compare Text Instantly

Quickly identify differences between two text documents with our advanced comparison tool

⚡ Lightning Fast Text Comparison

No registration required! Compare documents, code, or any text content in seconds

📱 Mobile Friendly Design

Works perfectly on all devices – desktop, tablet, and mobile. Compare text anywhere, anytime

🔒 100% Secure & Private

Your text never leaves your browser. All comparisons are processed locally for maximum privacy

🎯 Multiple Comparison Modes

Choose from word-by-word, line-by-line, or character-by-character comparison modes

📊 Detailed Statistics

Get comprehensive insights with similarity scores, addition/deletion counts, and visual highlights

Frequently Asked Questions

What is a text difference checker?
A text difference checker is a tool that compares two pieces of text and highlights the differences between them. It shows what has been added, removed, or modified, making it easy to spot changes in documents, code, or any text content.
How does the text comparison work?
Our tool uses advanced algorithms to analyze your text and identify differences. You can choose between word-by-word, line-by-line, or character-by-character comparison modes. The tool highlights additions in green and deletions in red for easy identification.
Is my text data secure when using this tool?
Yes, absolutely! All text processing happens locally in your browser. Your text never gets sent to any server, ensuring complete privacy and security. The tool works entirely offline once loaded.
What file types can I compare?
You can compare any plain text content including documents, code files, emails, articles, or any other text-based content. Simply copy and paste the text into the comparison boxes.
Can I ignore case sensitivity or whitespace differences?
Yes! The tool offers options to ignore case sensitivity and whitespace differences. This is particularly useful when comparing code or when minor formatting differences should be ignored.
What do the different colors mean in the results?
Green highlighting indicates text that has been added in the modified version. Red highlighting with strikethrough indicates text that has been removed. Gray text represents unchanged content that appears in both versions.
How is the similarity score calculated?
The similarity score is calculated based on the percentage of unchanged content compared to the total content. A score of 100% means the texts are identical, while lower scores indicate more differences between the texts.
Is there a limit to how much text I can compare?
While there’s no strict character limit, very large texts may take longer to process and might affect browser performance. For optimal results, we recommend comparing texts under 50,000 characters each.
Can I use this tool for comparing code files?
Absolutely! This tool is excellent for comparing code files, configurations, or any programming-related text. The monospace font display makes it easy to review code changes and spot syntax differences.
Does this tool work offline?
Yes, once the page is loaded, the tool works completely offline. All processing happens in your browser using JavaScript, so you don’t need an internet connection to compare texts.