Text Compare Online
Compare two texts and find differences instantly. Free, private, no sign-up, in your browser.
100% in-browser · No data sent0 words · 0 chars
0 words · 0 chars
Enter text in both panels and click Compare.
What is an online text compare tool?
An online text compare tool, often called a diff checker, shows the exact differences between two pieces of text. Paste an original version and a changed version to see additions, deletions, and unchanged lines without installing software. SimpleTextDiff supports line, word, and character diff modes, so developers, writers, translators, students, and legal teams can compare two texts quickly and privately in the browser.
How to compare two texts online
- Paste the original text into the left panel.
- Paste the modified text into the right panel.
- Choose line, word, or character diff mode, then click Compare.
- Review the highlighted differences in inline or side-by-side view.
Common uses for a text diff checker
Developers
Review code snippets or config files without opening a terminal.
Writers & Editors
Track manuscript revisions and catch unintended changes.
Students & Researchers
Compare draft versions of papers or thesis documents.
Translators
Verify that every sentence in the source is reflected in the translation.
Legal & Contracts
Spot clause changes between contract revisions instantly.
Online text compare FAQ
Why use SimpleTextDiff?
- ✓Private by design — text comparison happens in your browser.
- ✓Flexible diff modes — compare line by line, word by word, or character by character.
- ✓Fast and focused — paste two texts, click Compare, and see differences immediately.