QZL Compare
Free online tool to compare files, compare folders, and run a text diff — instantly in your browser, no install needed.
Folder CompareCompare the contents of two folders side by sideFile CompareCompare two individual files with line-by-line diff highlighting, inline character-level changes, and file sync capabilitiesText ComparePaste or type text directly into two editors and see differences highlighted in real-time
Why QZL Compare?
- 100% private — all processing happens locally in your browser, files are never uploaded
- Instant file difference checker — line-level diffs with character-level highlights
- Compare folders online — detect added, removed, and modified files across entire directories
- Text diff tool — paste text directly to see real-time differences, no file needed
💡 Use Chrome, Edge, or Chromium for full File System Access API features