Free JSON API for Developers

JSON Formatter / Validator

Format, validate, and prettify JSON. Returns formatted output with syntax validation. Detects errors with line numbers.

curl -X POST https://toolpipe.dev/json/format \
  -H "Content-Type: application/json" \
  -d '{"json_string": "{\"name\":\"John\",\"age\":30}"}'

Response:

{
  "formatted": "{\n  \"name\": \"John\",\n  \"age\": 30\n}",
  "valid": true
}

JSON Minifier

Minify JSON by removing whitespace. Reduces payload size for faster transfers.

curl -X POST https://toolpipe.dev/json/minify \
  -H "Content-Type: application/json" \
  -d '{"json_string": "{ \"name\": \"John\", \"age\": 30 }"}'

JSONPath Tester

Query JSON data using JSONPath expressions. Extract nested values easily.

curl -X POST https://toolpipe.dev/json/path \
  -H "Content-Type: application/json" \
  -d '{"json_string": "{\"users\":[{\"name\":\"John\"},{\"name\":\"Jane\"}]}", "path": "$.users[*].name"}'

JSON to YAML

Convert JSON to YAML format. Perfect for Kubernetes configs and CI/CD pipelines.

curl -X POST https://toolpipe.dev/convert/json-to-yaml \
  -H "Content-Type: application/json" \
  -d '{"json_string": "{\"name\": \"test\", \"version\": \"1.0\"}"}'

JSON to XML

Convert JSON objects to XML documents. Handles nested structures and arrays.

curl -X POST https://toolpipe.dev/convert/json-to-xml \
  -H "Content-Type: application/json" \
  -d '{"json_string": "{\"root\": {\"item\": \"value\"}}"}'

JSON to CSV

Convert JSON arrays to CSV format. Great for spreadsheet exports.

curl -X POST https://toolpipe.dev/convert/json-to-csv \
  -H "Content-Type: application/json" \
  -d '{"json_string": "[{\"name\":\"John\",\"age\":30},{\"name\":\"Jane\",\"age\":25}]"}'

JSON to TypeScript

Generate TypeScript interfaces from JSON. Auto-detect types and nested structures.

curl -X POST https://toolpipe.dev/convert/json-to-typescript \
  -H "Content-Type: application/json" \
  -d '{"json_string": "{\"name\":\"John\",\"age\":30,\"active\":true}"}'