Text Diff Checker
Compare two text files or code blocks side-by-side to highlight additions and deletions.
Line-by-Line Text Diff Comparison
Compare two text blocks side-by-side to highlight differences, additions, and deletions.
About Text Diff Checker
The Text Diff Checker compares two texts, documents, or code files side-by-side or inline, highlighting additions (green), deletions (red), and modified characters with word-by-word and character-by-character granularity.
How to Use Text Diff Checker
Step 1
Paste original text into the left pane.
Step 2
Paste modified text into the right pane.
Step 3
Select viewing mode (Side-by-Side or Inline).
Step 4
Review color-coded additions, deletions, and line changes.
Practical Use Cases for Text Diff Checker
Contract & Legal Agreement Auditing
Compare revised draft contracts against original agreements to detect modified clauses, omitted terms, or added conditions.
Code Snippet & Config File Comparison
Inspect differences between configuration files, environment variables, and code patches before committing.
Input & Output Examples
Comparing Original vs Edited Text
Text A: "The quick brown fox" | Text B: "The fast brown fox jumps"
Highlights: [-quick-] {+fast+} brown fox {+jumps+} (1 replacement, 1 addition)Key Features & Performance
- ✓Side-by-Side (Split) and Inline (Unified) diff viewing modes.
- ✓Granularity levels: Line-by-Line, Word-by-Word, and Character-by-Character.
- ✓Metrics: Additions count, Deletions count, and Percentage Similarity score.
- ✓100% Client-Side memory execution guarantees document privacy.
- ✓1-Click Copy unified diff patch.
Key Terminology & Definitions
Myers Diff Algorithm
An optimal greedy algorithm used in Git and diff utilities to compute the shortest edit script (SES) between two sequences.
Unified Diff
A format displaying differences between two files in a single continuous stream with line markers (+ and -).