JSON & data

JSONPath tester

Run JSONPath expressions against any JSON, live.

Tools → Inspect → JSONPath tester · or JSON Diff toolbar · 7-day free trial · Premium $9.99 / yr

Try it now·runs locally · nothing uploaded

JSON document

Matches

3 matches

[
  "Alice",
  "Bob",
  "Carol"
]

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★ Premium

Built for the things AI can’t fake

This tool runs free, right here. The extension adds three things a web widget can’t:

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★ Flagship

Playground

↗

JS / TS scratchpad — sandboxed and instrumented.

Paste real code, hit Run. Console + network monitor + watch expressions all in one panel.

·Real ES modules · top-level await
·URL imports — esm.sh & friends
·Live fetch monitor (every call)
·Watch expressions in your scope
·10s sandbox timeout · zero CORS pain

HTTP client

↗

Postman-style request runner.

Save collections, share variables, hit any API. Includes GraphQL with introspection, OpenAPI / cURL import.

·Bearer / Basic / API-key auth
·GraphQL · introspection
·OpenAPI 3.x · cURL import
·Copy as fetch / axios / Python

Realtime (WS + SSE)

↗

Stream-protocol tester — what Postman doesn’t do well.

WebSocket + Server-Sent Events with custom auth headers, auto-reconnect, JSON pretty-print.

·wss:// + ws:// + subprotocols
·SSE via fetch — Authorization works
·Auto-reconnect with backoff
·Send composer · ⌘ + Enter

What it does

JSONPath is the JSON equivalent of XPath: a tiny query language for extracting values from a deep JSON document.

Useful when you want to check "did the field I care about actually change?" between two JSON blobs, or just to grab a slice of a big response without writing JS.

Why use VibeGear's jsonpath tester

✓Live evaluation as you type
✓Works in the standalone tool and inside JSON Diff
✓Errors are descriptive: tells you exactly what part of the path is unsupported

How to use it

1Tools → Inspect → JSONPath tester.
2Paste your JSON.
3Type a path like $.users[*].email — matches appear live.

Example

Path

$.users[*].name

Matches

["Alice", "Bob", "Carol"]

Frequently asked

Are slices and filter expressions supported?

Not in v1. Slices [N:M], filters [?(@.x=='y')], and unions [a,b] aren’t implemented — the parser surfaces a clear error if you use them.

Related tools

JSON explorer

Tree view for big JSON. Search, expand, copy paths.

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Pretty-print, validate, and explore any JSON — locally, in your browser.

Regex tester

Live highlighting, capture groups, multi-flavor compatibility checks.

★ Premium

One install. Every tool above.

7 days free, then VibeGear Premium is $9.99 / €9.99 per year. Everything runs locally.

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