Free Online Text Diff Checker
A lightweight in-browser text diff checker that compares two text inputs and highlights additions, deletions, and changes with inline diff visualization.
How to Use
- Step 1: Enter the original text in the left textarea
- Step 2: Enter the modified text in the right textarea
- Step 3: View the highlighted differences in the diff visualization below
Często Zadawane Pytania
What is a text diff checker?
A text diff checker is a tool that compares two pieces of text and highlights the differences between them. It shows what was added, removed, or changed, making it easy to see how two versions of text differ.
How does this diff checker work?
The tool compares your original text and new text character-by-character or word-by-word (depending on the mode you select). It then highlights additions in green, deletions in red with strikethrough, and leaves unchanged text as normal.
Is my text data secure?
Yes! All text comparison happens entirely in your browser (client-side). Your text is never sent to any server, ensuring complete privacy and security. Nothing leaves your device.
What's the difference between word mode and character mode?
Word mode compares text word-by-word, which is better for comparing documents or paragraphs. Character mode compares character-by-character, which is more precise and useful for code or when you need to see every single change.
Can I use this tool to compare code?
Yes! The tool works with any plain text, including code. Character mode is particularly useful for code comparison as it shows every character change precisely.
Is this tool free to use?
Yes, our text diff checker is completely free to use with no registration required. You can use it as many times as you need, and all processing happens in your browser.