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API Response Comparator is a lightweight tool designed to compare and analyse API responses across different environments or versions. It helps developers quickly identify discrepancies in JSON structures, values, and formats, making debugging and regression testing more efficient.
Response comparison: Detect differences between API outputs in staging vs. production, or across versions.
JSON structure validation: Ensure consistency in keys, nested objects, and data types.
Highlight mismatches: Pinpoint exact fields where values diverge.
Lightweight setup: Built with TypeScript, JavaScript, and CSS for easy integration.
Open-source flexibility: Licensed under MIT, allowing customisation for your workflow.
TypeScript (78%) β Core logic and comparison engine
JavaScript (12%) β Utility functions and helpers
CSS (10%) β Simple UI styling for readability
Regression testing: Validate API changes before deployment.
Environment consistency: Compare staging vs. production responses.
Data validation: Ensure API outputs meet expected formats.
This project is released under the MIT License, making it free to use, modify, and distribute.
Β© 2026 API Response Comparator