JSONPath & Schema Validator

Validator

Test JSONPath query expressions and validate JSON against JSON Schema definitions.

JSONPath:
Source JSON Data
Data
UTF-8•100% Local Sandbox
36 lines • 748 Bytes
Extracted Query Results
Evaluated
[
  "Sayings of the Century",
  "Sword of Honour",
  "Moby Dick",
  "The Lord of the Rings"
]
UTF-8•100% Local Sandbox
6 lines • 93 Bytes

About JSONPath & Schema Validator

JSONPath is an expression language for querying and filtering nested JSON structures (analogous to XPath for XML). A JSON Schema validator asserts that a JSON document conforms to defined types, mandatory properties, regex constraints, and value bounds.

Zero-Upload Privacy Guarantee

Testing sensitive API schemas or data extraction patterns shouldn't expose internal schema models or data formats to unknown servers. Pure client-side evaluation keeps all contracts private.

Client-Side Sandbox● 100% Air-Gapped

Key Capabilities & Features

Real-time JSONPath evaluation with root, recursive descent, and wildcards
JSON Schema validation checking required keys, string patterns, types, and ranges
Clear highlighted feedback on non-conforming fields
Preloaded presets for common query expressions and sample schemas

How to use this JSONPath tester

1

Choose Tool Mode

Select either 'JSONPath Tester' or 'JSON Schema Validator'.

2

Enter Target JSON

Paste the JSON data you want to query or validate.

3

Enter Query or Schema

For JSONPath, enter an expression like '$.users[*].email'. For Schema, paste your JSON Schema definition.

4

Inspect Results

View the extracted JSONPath nodes or review schema conformance errors.

Frequently Asked Questions

Supports root ($), property access (.key), array indices ([0]), wildcards (*), recursive descent (..), and slice operations.