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🎯 JSON Path Tester

Query JSON with dot/bracket paths and copyable diagnostics.

JSON path checks

Reports JSON parse errors, tokenized path traversal, match count, no-match warnings, and dialect limitations.

Runs in your browser

Path testing runs locally. Debug payloads omit JSON unless you explicitly include it.

What this tool does

JSON Path Tester evaluates JSONPath-style expressions against JSON data and shows matching values.

Why it is useful

It helps developers, analysts, and automation builders locate fields inside nested API responses and config data.

How it works

The browser parses JSON and applies dot paths, bracket indexes/keys, and simple wildcards.

Best input

Paste valid JSON and test one path expression at a time.

Debugging tip

Start broad, then narrow the path as you confirm object and array structure.

Privacy note

Testing happens locally in your browser.

Important limitation

JSONPath dialects vary between libraries and platforms. Treat this as a practical tester for simple paths, not a universal dialect implementation.

Quick answers

Does this support wildcards?

Yes, simple wildcard traversal is supported for common object and array lookups.

Can I call it from automation?

Yes. The examples below show /api/run requests for curl, JavaScript, and Python.

API examples

Call the same deterministic core through Utilito’s compact API router. Send only data you intentionally submit to the server-side endpoint.

Try in API playground →Schema →
Query JSON paths with curl
curl
curl -X POST https://utilito.dev/api/run \
  -H "Content-Type: application/json" \
  -d '{"tool_id":"json-path-tester","input":{"json":"{"users":[{"name":"Ada","role":"admin"},{"name":"Linus","role":"dev"}]}","path":"users.*.name"}}'
Query JSON paths from JavaScript
javascript
const res = await fetch('https://utilito.dev/api/run', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    tool_id: 'json-path-tester',
    input: { json: '{"users":[{"name":"Ada","role":"admin"},{"name":"Linus","role":"dev"}]}', path: 'users.*.name' }
  })
});
const data = await res.json();
console.log(data.result.output || data.result.report);
Query JSON paths from Python
python
import requests
payload = {
    "tool_id": "json-path-tester",
    "input": {"json": "{"users":[{"name":"Ada","role":"admin"},{"name":"Linus","role":"dev"}]}", "path": "users.*.name"},
}
result = requests.post("https://utilito.dev/api/run", json=payload).json()["result"]
print(result.get("output") or result.get("report"))

Common Use Cases

Inspect API responses

Extract nested values from JSON payloads while building clients or tests.

Debug automation paths

Verify keys and indexes before adding a path to a workflow.

Collect repeated fields

Use wildcards to preview lists of IDs, names, or status fields.

Config Formatter Workbench workflow

Move between JSON, YAML, TOML, XML, config conversion, JSON path inspection, and schema validation while keeping snippets local to the browser.

{}JSON Formatter🧾YAML Formatter / Validator⚙️TOML Formatter / Validator🧾XML Formatter⚙️Config Format Converter✅JSON Schema Validator
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