Diff Checker
Compare two texts line by line
Paste text in both panels to compare
Differences will be highlighted automatically
About Text Diff Checker & Comparison Tool
1What is it?
Compare two texts side by side and instantly see the differences highlighted. This diff checker makes it easy to spot changes between document versions, compare code files, or review edits in any text content. Added content is shown in green, removed content in red, making it visually intuitive to understand what changed.
2Use Cases
- Compare different versions of source code
- Review changes before committing to git
- Find differences in configuration files
- Compare API responses between environments
- Check what changed in document revisions
- Debug by comparing working vs broken outputs
- Verify data synchronization between systems
3Examples
See changed words highlighted
Input
Hello World How are you?
Output
Hello World How are you doing?
?Frequently Asked Questions
What comparison algorithm is used?
The tool uses a line-by-line diff algorithm similar to the Unix diff command. It identifies added, removed, and modified lines. For changed lines, it further highlights the specific words that differ.
Can I compare files directly?
You can paste file contents into the text areas. For code files, copy the content from your editor. The tool handles any plain text content regardless of file extension.
How do I read the diff output?
Green highlighted text = added (present in Text 2 but not Text 1). Red highlighted text = removed (present in Text 1 but not Text 2). Lines without highlighting are identical in both texts.
Does it preserve whitespace?
Yes, whitespace (spaces, tabs, line breaks) is preserved and compared. This is important for code comparison where indentation matters.
Can I ignore case differences?
Currently, comparison is case-sensitive. 'Hello' and 'hello' will be shown as different. This ensures precise comparison, especially for code where case matters.