Cn Json Diff

Compare two JSON files and show differences. Support nested structures, arrays, and value changes. Pure Python standard library, no API key required.

JSON Diff

Compare two JSON files and show the differences in a clear format.

Features

• Compare JSON files of any complexity
• Detect nested object differences
• Identify array length changes
• Show old vs new values for changed fields
• Pure Python, no external dependencies

Input

Two JSON files passed as arguments.

Output

List of all differences found, with paths and old/new values.

Usage

python3 scripts/json_diff.py --file1 data1.json --file2 data2.json

Example

Input file1.json:

{"name": "Alice", "age": 30, "city": "Beijing"}

Input file2.json:

{"name": "Alice", "age": 31, "city": "Shanghai"}

Output:

differences:
- age: 30 -> 31
- city: Beijing -> Shanghai
count: 2

Exit Codes

• 0: Comparison completed (with or without differences)
• 1: File read error