Is this character-level or line-level?

Line-level. Each line is either unchanged, added, or deleted — no inline highlighting within a changed line.

Text Diff / Compare

Compare two blocks of text and see exactly what changed — added lines in green, deleted in red, unchanged in gray.

Left (original)

Right (changed)

Diff

How to use Text Diff / Compare

Paste the original text on the left.
Paste the changed text on the right.
Read the colored diff below.

What is Text Diff / Compare?

Useful for proofreading edits, comparing versions of a document, or reviewing config changes. Uses the longest-common-subsequence algorithm for accurate line-by-line diffing.

FAQ

Is this character-level or line-level?: Line-level. Each line is either unchanged, added, or deleted — no inline highlighting within a changed line.

Related tools

Find and Replace
Count Occurrences
Word Counter