Question 1

What is a text diff tool?

Accepted Answer

A text diff tool compares two pieces of text and highlights the differences between them. It shows which lines were added, removed, or modified, making it easy to review changes between document versions or code revisions.

Question 2

Is this text diff tool free?

Accepted Answer

Yes, QTool.io's Text Diff Tool is completely free with no signup required. It runs 100% in your browser so your data never leaves your device.

Question 3

What is the difference between character-level and word-level diff?

Accepted Answer

Character-level diff highlights individual character changes within modified lines for maximum precision. Word-level diff highlights whole words that changed, which is often easier to read for prose and documentation. Line-level diff simply marks entire lines as added or removed without inline highlighting.

Question 4

Can I export the diff as a patch file?

Accepted Answer

Yes, click the Copy Patch button to copy the diff in unified patch format to your clipboard. This format is compatible with git apply and standard patch tools.

Free Text Diff Tool

Need something more powerful?

QTool.io on GitHub