How to use Online Diffing Tool
- Drop your text into the field at the top of Online Diffing Tool.
- Use the Compare by setting to control the result.
- Online Diffing Tool updates the output automatically as you type.
- Use Copy to keep or reuse the result.
About this tool
Online Diffing Tool runs entirely in your browser. Online Diffing Tool handles your input locally and returns the result instantly, with no sign-up.
It is designed to do one job well and stay out of your way. It behaves the same on desktop and mobile, with nothing stored remotely.
Frequently asked questions
What does Online Diffing Tool do?
Use Online Diffing Tool to compare your input without installing anything using the Compare by control; everything happens client-side.
Does Online Diffing Tool cost anything?
No — Online Diffing Tool is completely free, with no sign-up and no hidden limits.
Does Online Diffing Tool upload my data?
No — Online Diffing Tool processes everything locally in your browser, so nothing you enter is uploaded or stored.
Does Online Diffing Tool work on mobile?
Yes — Online Diffing Tool is just a web page and runs on any modern browser, including phones and tablets.