Text & Code Diff Checker

What is this?

A powerful client-side Text and Code Diff Checker that compares two versions of text or code to highlight exact additions, deletions, and modifications. Offers Side-by-Side and Unified Inline views, line/word/character diff granularities, whitespace ignoring toggles, and similarity score analysis.

Key Features & Concepts

• Multi-Granularity Comparison: Compare text Line-by-Line, Word-by-Word, or Character-by-Character
• Flexible Display Views: Switch between Side-by-Side Split View and Unified Inline Diff View
• Visual Color Coding: Additions in vibrant green, deletions in bold red, and unchanged lines in clean neutral tones
• Diff Statistics & Metrics: Added lines count, deleted lines count, unchanged lines count, and percentage similarity score
• Comparison Options: Ignore whitespace differences or perform case-insensitive text comparison
• Quick Action Controls: Swap Original and Modified text panels, clear editors, or copy the unified diff string
• Preset Test Cases: Load sample code revisions, JSON payload changes, and text edits
• 100% Client-Side Engine: Runs locally without uploading sensitive code to external servers

How to Use

1. Paste your original text or code into the "Original Text (v1)" panel on the left.
2. Paste the updated text or code into the "Modified Text (v2)" panel on the right.
3. Choose your diff comparison mode (Line, Word, or Character) and layout view (Side-by-Side or Unified).
4. Optionally toggle "Ignore Whitespace" or "Case Insensitive" settings.
5. Review the highlighted differences and inspect summary metrics (additions, deletions, similarity score).
6. Click "Swap Texts" or "Copy Diff" as needed.

Common Use Cases

• Software Engineers performing local code reviews before git commits
• Content Editors and Technical Writers tracking document revisions
• DevOps Engineers verifying server configuration file changes