JSON Diff
Compare two JSON documents side by side. Instantly spot additions, removals, and changes with color-coded diff highlighting.
Diff Features
Powerful JSON comparison tools for developers.
Side-by-Side View
View differences with a clean side-by-side layout. Added lines in green, removed lines in red.
Line-Level Comparison
Uses LCS algorithm for accurate line-level diff. Handles large documents efficiently.
Format Before Diff
Format both JSON documents before comparing to get a meaningful structural diff, not just whitespace changes.
JSON Diff FAQ
How does JSON diff work?
It uses the Longest Common Subsequence (LCS) algorithm to compare lines between two JSON documents, highlighting what was added, removed, or changed.
Should I format before comparing?
Yes, use the 'Format Both' button to normalize indentation first. This way you compare structure and values, not just whitespace.
Can I compare large JSON files?
Yes, the diff algorithm is optimized for performance. Files up to several megabytes can be compared efficiently.