Inspect API responses
Format returned JSON so nested objects, arrays, and keys become much easier to read during development.
Beautify, validate, and minify JSON quickly so you can move between readable debugging output and compact production data without switching tools.
Paste JSON, then format, validate, or minify it instantly while reviewing structure, type, and size details in one cleaner workflow.
Format returned JSON so nested objects, arrays, and keys become much easier to read during development.
Check whether JSON is valid before using it in configuration files, frontend data, or backend payloads.
Minify the same JSON after validation when you need a smaller string for storage, transfer, or deployment.
Paste compact JSON from an API call and format it so nested fields, arrays, and objects become easier to inspect.
Use the validate action when you want to confirm the JSON structure is correct before putting it into code or config.
Convert readable JSON back into a one-line string when the final goal is a compact payload or smaller file.
Copy the processed JSON into another tool or download it as a `.json` file when you want a quick handoff.
The formatter parses your JSON input first. If the structure is valid, it can either reprint the data with indentation for readability, minify it into a compact one-line version, or simply confirm that the structure is valid.
The result panel also shows quick stats such as JSON type, key or item count, and input/output size so you can understand the structure and the impact of formatting or minification at a glance.
Because the tool runs directly in your browser, it is useful for quick JSON debugging, API inspection, config validation, and compact-output preparation without sending the data to a server.
Use the CSV to JSON Converter when spreadsheet-style rows need to become structured JSON before formatting.
Open JSON to CSV if structured data needs to go back into a spreadsheet-friendly format.
Visit the Developer Tools Hub for more browser-based formatting, conversion, and cleanup tools.
JSON is everywhere in development, but minified payloads, copied API responses, and config blobs are often hard to read when they arrive as one dense line. This tool helps bridge that gap by making the data readable, valid, and exportable in one place.
It is especially useful for API debugging, payload inspection, quick validation, and switching between human-readable and compact JSON without leaving the browser.
Use it when debugging API responses, cleaning compact JSON, validating config data, or preparing a readable example for documentation and testing.
The result stats help you quickly understand whether the input is an object or array, how many keys or items it contains, and how formatting or minification changes the payload size.
Copy the output into code, save the downloaded JSON file, or continue into related tools if the workflow also includes CSV conversion, API prep, or structured data cleanup.