No. You can use this tool without logging in.

What will I get as output?

You’ll get a generated result (.patch) that you can download or copy.

Is my content private?

Processed locally in your browser; your content isn’t uploaded.

Some tools are available only on certain plans or have usage limits. If you hit a limit, you’ll see an upgrade option.

Compare two versions of Markdown and generate a unified patch.

This tool requires JavaScript. If you don't see the editor, enable JavaScript and reload.

Do I need to log in?: No. You can use this tool without logging in.
What input does it support?: You can use paste.
What will I get as output?: You’ll get a generated result (.patch) that you can download or copy.
Is my content private?: Processed locally in your browser; your content isn’t uploaded.
Why might I see an upgrade prompt?: Some tools are available only on certain plans or have usage limits. If you hit a limit, you’ll see an upgrade option.