Online JSON diff comparison tool: visually compare two JSON objects and highlight added, removed, and modified fields. Supports array comparison.
TL;DR: Free online JSON diff tool with recursive comparison of nested objects and arrays. Tree-view diff highlighting, semantic structural comparison, runs locally.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
FAQ
Completely free, no registration required. Compare two JSON datasets directly in your browser — all operations run locally with no usage limits.
Yes. The tool recursively compares all levels of JSON, identifying additions, deletions, and modifications in nested objects and array elements, highlighting diff paths in a tree structure.
No. All JSON comparison runs locally in your browser. Your data is never sent to any server, ensuring privacy.
JSON Diff performs semantic comparison based on data structure, recognizing objects with different key order but identical content while ignoring formatting. Text Diff compares line by line and is sensitive to JSON formatting. JSON Diff is better suited for structured data.
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