100% Free • No Signup Required

Compare any file, instantly.

Fast, private, and free online tools to compare text, files, folders, spreadsheets, and documents. Everything runs in your browser.

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One tool for every comparison.

Whether you need to diff text, compare files, or audit spreadsheets, we have the right tool.

Compare Text

Paste or type text to see differences highlighted instantly.

Compare Files

Upload any two files to see line-by-line differences.

Compare Folders

Compare directory structures and find missing or changed files.

Compare Spreadsheets

Side-by-side Excel and CSV comparison with cell-level diffs.

Compare Documents

Compare Word, PDF, and text documents with paragraph-level diffs.

How it works.

Three simple steps to find any difference.

Choose your tool

Select the type of comparison you need from our suite of free tools.

Upload or paste

Drag and drop files, upload from your device, or paste text directly.

See differences

View highlighted additions, deletions, and changes instantly.

Your files never leave your browser.

We believe privacy is a right, not a feature. That is why all comparison processing happens entirely in your browser using JavaScript. Your files are never uploaded to any server.

100% client-side processing
No account or signup required
Works offline after first load
No file size limits for text

diff-result.js

1- Hello, world!

2+ Hello, universe!

3 This is a comparison.

4- Made with love.

5+ Made with precision.

Frequently asked questions.

Is this really free?

Yes! All our comparison tools are completely free to use. No hidden fees, no premium tiers, no signup required.

Are my files secure?

Absolutely. All comparison processing happens in your browser. Your files are never uploaded to our servers, ensuring complete privacy.

What file formats are supported?

We support plain text, code files, Word documents (.docx), PDFs, Excel spreadsheets (.xlsx), CSV files, and folder structures.

Is there a file size limit?

For text comparisons, there is no practical limit. For file uploads, we recommend files under 50MB for optimal performance.

Do I need to create an account?

No. All tools are available instantly without any registration or account creation.

Ready to compare?

Start comparing files in seconds. No signup, no setup, no hassle.

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