Diff Checker - Text to Text Comparison
Diffchecker is an online tool to compare two texts and highlight differences with precision. This online text compare tool analyzes two text, and perform a character-by-character comparison to highlight the text differences in real-time. Users can also upload text files or paste the text directly into the tool to see the text diff instantly.
Key Features of the Diff Checker
Below are the list of features
1. Real-Time Diff Checks
Experience the power of real-time text comparison. As our tool highlights differences as soon as you type or paste text. Note - Larger input text ( more than 5 MB ) will increase diff computation time and diff rendering will also take a hit. So there will be noticeable increase in delay proportional to size of input post 5 MB.
2. Character-by-Character Comparison
For precise diffs, our default setting highlights differences character by character. This is especially useful for spotting subtle edits like punctuation changes or minor code modifications, making it a go-to tool for anyone who needs to check code diff or text diff with high precision to catch bugs.
3. Flexible Context Lines
To make large text comparisons easier, only five lines around the changes are shown by default. This collapsible context can be expanded as needed, or you can choose to expand all lines for a complete view of the text.
4. View Modes
Switch between split view (side-by-side) or unified view (line-by-line) depending on your preference. Split view is great for spotting differences at a glance, while unified view gives a continuous reading experience—perfect for users looking for an intuitive way to compare two texts.
5. Save Diffs in Browser
Save up to 10 diffs directly in your browser’s local storage, allowing you to revisit previous comparisons without reloading files. Your data remains private, saved only on your device. This makes it easy to manage your text diff history securely. Note: 1/ This feature is not available in mobile browsers. 2/ The diff is saved in browser locally so, it will not be available across browsers.
6. Shareable URLs
Need to share the diff view with a colleague? Our tool compresses inputs using GZIP and generates a unique URL containing the compressed input data. Simply share this link, and anyone with the URL can view the diff online . They can view as you see. :)
How to use our Diff Checker?
- Paste or type the original text and the modified text to compare two text instantly.
- Text differences will be highlighted below instantly as you type or paste the text.
- Optionally, you will be able to save the diffs in the browser for future reference.
- Optionally, you can also share the entire diff check as a URL.
Is it free to use?
Yes, this diff checker is completely free for both personal and commercial use. No strings attached.
Data Privacy and Safety
All text to text comparisons happen entirely within your browser. No data is transferred to a server, ensuring your content remains private and secure.