DevDiff

Text Diff Tool

Compare two blocks of text side by side to quickly spot differences in logs, snippets, notes, and other plain text content.

What is a text diff tool?

A text diff tool compares content line by line and highlights additions, removals, and edits. It works best for plain text where structure is minimal.

How to compare text online

  1. Paste text into both editors.
  2. Click Compare.
  3. Review changed lines and the side-by-side output.

When to use text diff vs structured diff

Use this tool for logs, notes, and generic snippets. If your content has structure, specialized tools are clearer: JSON Diff for nested objects, YAML Diff for config files, and ENV Diff for environment variables.

Related tools

Working with API output instead of plain text? Compare full responses using API Response Diff.