Code Review with Diff
Code review is essential for quality software. Diff tools make it easy to see exactly what changed.
What to Look For
- Logic changes: Does the new code do what it should?
- Security issues: Are there new vulnerabilities?
- Performance: Could changes slow things down?
- Style: Does it follow conventions?
- Tests: Are tests updated for new code?
Diff Reading Tips
- Focus on removed code first (what's gone?)
- Then review additions (what's new?)
- Check for modified lines (what changed?)
- Look for whitespace-only changes (ignore them)
- Verify no debug code was added
Common Issues Caught in Diff
- Leftover console.log or print statements
- Hardcoded values that should be variables
- Commented-out code blocks
- Missing semicolons or brackets
- Changed function signatures without updating calls
Try Our Free Text Diff Tool
Use our free Text Diff Tool — no signup, no upload, works entirely in your browser.