Online Text Diff Checker
Free online diff checker to compare two text strings, code revisions, or config files side-by-side with file upload & inline character highlights.
String A (Original)
Chars: 0 • Words: 0 • Lines: 0
String B (Modified)
Chars: 0 • Words: 0 • Lines: 0
How to Use Online Text Diff Checker
Strinza Diff Checker provides line-by-line and character-level difference analysis for code, text documents, and configuration files.
1. Upload or Paste
Upload files or paste original and modified text strings into String A and String B.
2. Inline Word Highlights
Exact word additions and deletions are highlighted with colored background tokens.
3. 100% Client-Side
All diff calculations execute locally in your browser with zero server data uploads.