Text Comparer

Compare two texts and highlight the differences.

Writing & Reports
Miscellaneous Utilities
Free

Text A (Original)

0 chars0 words0 lines

Drag and drop a file or paste text

Text B (Modified)

0 chars0 words0 lines

Drag and drop a file or paste text

Comparison settings

Your preferences are saved automatically

Filtering options

Ignore whitespace

Ignore case

Ignore empty lines

Comparison type

Display type

💡 Tip: Use "Line by line" for code and "Word by word" for text paragraphs.

Enter text in at least one field to be able to compare.

No differences to display

Enter text in the fields above and click "Compare"

100% Local & Private

Your texts stay on your device. No data is sent to our servers. The analysis is performed entirely in your browser using JavaScript.🔒 Ideal for comparing sensitive documents in complete privacy.

Ctrl+Enter CompareCtrl+Shift+S SwapCtrl+Shift+R Reset

About

Text Comparer

Compare two versions of a text, config file, log or code block and view the differences with color highlighting (additions in green, deletions in red). Pick the granularity, filter out noise (whitespace, case, empty lines) and export the result. Everything is processed in your browser.

What it does

Line-by-line, word-by-word or character-by-character comparison
Options: ignore whitespace, case and empty lines
Side-by-side or unified view, with a summary of differences
Import text files up to 5 MB and swap both texts
Export as a .diff file or HTML; preferences remembered

Frequently asked questions

How much text can I compare?

You can paste your texts or import text files up to 5 MB each. The comparison runs in your browser: on very large files, line-by-line mode remains the fastest.

Can I compare config files or code?

Yes. For configs (nginx, Apache, GPO exports), scripts and logs, use line-by-line mode and tick "Ignore whitespace" so indentation does not get in the way. Word-by-word mode is better suited to text paragraphs.

Is there a unified view?

Yes. Besides the side-by-side view, the unified view shows all changes in a single column, easier to read for long texts with few differences. The result can be exported as .diff or HTML.