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Text Diff Checker – Free Online Tool

Quick answer: Compare two texts line by line and see added and removed lines.

About this tool

Paste an original and a changed version to see exactly which lines were added or removed. Useful for documents, code and config files.

How to use the Text Diff Checker

1. Enter your text, choose your file or set the options in the tool above.
2. Click the action button for the result you want.
3. Copy or download the output. Nothing leaves your device.

Why use ToolWorlds?

• Free, with no registration
• Private: runs in your browser
• Works on phones, tablets and desktops

Frequently asked questions

What do the colors mean?

Green lines with + were added. Red lines with - were removed.

Is my data safe?

Yes. Processing happens in your browser. Nothing you enter is sent to our servers.

Is it free?

Yes. It is free, with no sign-up or usage limit.

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