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JSON Formatter API

Format, validate, and transform JSON data via API. Pretty-print for readability, minify for production, or validate structure.

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API Endpoint

POST /v1/json

Parameters

Name Type Required Description
jsonstringYesJSON string to process
actionstringNoAction: format, minify, or validate (default: format)
indentintegerNoIndentation spaces (default: 2)

Quick Example

curl -X POST "https://api.toolcenter.dev/v1/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"json": "{\"name\":\"John\",\"age\":30}", "action": "format"}'

Features

  • Pretty-print with custom indentation
  • Minification for production
  • JSON validation with error details
  • Sort keys alphabetically
  • Handle large JSON payloads

Use Cases

Format API responses for debugging

Validate JSON config files

Minify JSON for production payloads

Build online JSON tools

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500 free API calls per month. No credit card required.

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