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Text Diff Checker

Introducing Text Diff Checker — Now Live on Tools.Town

Text Diff Checker compares two blocks of text side by side and highlights every added, removed, and changed line — like git diff but for any text in your browser.

Tools.Town Team 7 May 2026 3 min read

Text Diff Checker is now live on Tools.Town — a tool that compares two text blocks and shows a color-coded diff: green for added lines, red for removed lines, and yellow for changed lines, with inline character-level highlighting for modified content.

Compare two versions of a document, config file, or code snippet to see exactly what changed.

What Does It Do?

Line Diff

Color-coded line-by-line comparison — green for additions, red for deletions, yellow for modifications.

Inline Changes

Within changed lines, the exact characters that were added or removed are highlighted — no guessing.

Unified View

Switch between side-by-side and unified (inline) diff views depending on your preference.

Text Diff uses the Myers diff algorithm — the same algorithm behind Git’s diff output.

How It Works

Paste original

Paste the original text into the left panel.

Paste modified

Paste the modified text into the right panel.

Read the diff

The diff appears immediately — green adds, red deletes, yellow changes. Switch views as needed.

Why We Built It

Contract revisions, document edits, config changes, and code reviews all need a quick way to see exactly what changed between two versions. Git handles this for tracked files. Text Diff Checker handles it for everything else — pastes, clipboard content, generated text, and any document you don’t have under version control.

Try It Now

Free Tool
No sign-up In-browser

Text Diff Checker

Compare two text blocks with line and character-level diff highlighting. Side-by-side and unified views.

Line-level diffCharacter-level inlineSide-by-side viewUnified view
Compare Text

Explore more text tools — Find and Replace, Text Sorter, and Duplicate Line Remover.

Frequently Asked Questions

Does it diff line by line or character by character?
Both. The primary view is a line-by-line diff with color coding. Within changed lines, character-level differences are highlighted inline for precise comparison.
Can I diff code files?
Yes. Paste any text — code, prose, JSON, config files — and the diff algorithm handles it correctly.
What diff algorithm does it use?
The Myers diff algorithm — the same algorithm used by Git for its line-by-line diffs.

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