Text Compare
Compare two pieces of text locally with additions and removals highlighted by word or line.
Open toolJSON Diff Checker
Compare two JSON values by structure. See changed paths without treating object key order as a difference.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Compare JSON.
Your result
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Result will appear here
How JSON Diff Checker works
Compare parsed JSON recursively, ignoring object key order and reporting positional array changes with JSON Pointer paths.
Array order matters. The result lists up to 1,000 differences, and indicates truncation if more are found. Numbers are compared without rounding their JSON digits; duplicate keys and malformed JSON are rejected.
How to use JSON Diff Checker
Paste the original and updated JSON separately, then compare their values and read the changed paths.
Paste the original and updated JSON
Both documents must be valid JSON without duplicate keys. Object key order and whitespace are ignored; array positions remain significant.
Input and settings
Compare JSON
Select Compare JSON to list added, removed and changed values. Object key order and whitespace do not affect the comparison, while array entries are compared by their positions.
Tool result
Read the result table
Compare the documents and read each JSON Pointer path, change label and before/after value. A large result may show only its first 1,000 differences.
Review the details
Compare JSON API responses and configuration changes
Compare captured payloads or configuration files by their values and structure.
Compare API response samples
Inspect changed fields between two captured payloads. Keep identifiers beside the documents so the result has a clear context.
Review a configuration change
Separate value changes from whitespace or object key reordering. The tool does not determine whether the new configuration is valid for your application.
Check ordered array edits
See positional differences when entries are inserted, removed or reordered. This comparison treats arrays as ordered sequences, not sets.
Added, removed, and changed JSON values
Read each JSON Pointer path with its change label and before/after values; a path alone does not explain the change.
Equal means the parsed values match under this structural comparison. A changed path identifies a value difference, not its cause or effect on an application.
Valid JSON, ordered arrays, and the 1,000-row limit
Check both input documents and the display limit before treating the result table as a complete comparison.
JSON Pointer escapes ~ and / in object keys. Keep array ordering and the 1,000-row display limit in mind when reading a large report.
Each input is limited to 100,000 characters; malformed JSON and duplicate keys are rejected. The main difference count includes changes beyond the first 1,000 displayed rows, and the page identifies a truncated result. An Equal result refers to this structural comparison, not your application's validation rules.
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Open toolCompare JSON with your own input
Compare two JSON values by structure. See changed paths without treating object key order as a difference.
JSON Diff Checker: common questions
Answers about using JSON Diff Checker and understanding its results.
Does whitespace affect the result?
No. The comparison uses parsed values, so formatting and object key order do not change the result.
Are arrays compared as sets?
No. Arrays are compared by position; a reordered item can produce differences.