PriviTools
ESENDEPTFRIT
Local processing

DEVELOPER TOOLS

Diff checker

Paste two versions and see exactly what changed. Useful for contracts, config files and API responses.

Use this tool
Free support tool — review the result

PriviTools provides this tool at no cost to make everyday tasks easier. Results are generated automatically and may contain errors, omissions or formatting changes. Compare them with the original before signing, filing, sharing or relying on them for an important decision. This tool does not replace professional review or official validation.

VISUAL COMPARISON

Compare two texts without losing context.

Paste or type two versions to compare them.

Original0 lines
Modified0 lines

The case that makes local processing matter

The texts genuinely worth comparing tend to be the ones you should not paste into a random website: two versions of a contract, a config file holding credentials, an API response carrying customer data. Here the comparison executes in your tab, so that content never leaves your machine.

Line-by-line comparison

The tool aligns both texts and marks which lines were added, which disappeared and which stayed put. It is the same mental model as a version-control `diff`, with nothing to install and no requirement that the text be code.

When the result is full of differences that are not real

It is almost always line endings. A file saved on Windows ends each line with CRLF, one from macOS or Linux with LF; to a comparison those are different lines even though they look identical on screen. Trailing whitespace and tabs versus spaces do the same thing. If every line shows as changed, start there.

FREQUENTLY ASKED QUESTIONS

Are the texts sent to a server?

No. The comparison runs in your browser, so you can disconnect from the internet and keep comparing confidential documents.

Is there a size limit?

The limit is your browser's memory, not a paid plan. Texts running to thousands of lines compare without trouble.

Can I use it for code?

Yes. It compares any plain text: code, JSON, YAML, config files or prose.

Why are identical-looking lines marked as different?

Usually a different line ending (CRLF versus LF) or invisible trailing spaces. They are real differences even though you cannot see them.

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