Best Free Online Developer Tools to Use in 2026
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
Aug 08, 2026
JSONPath Tester
Test JSONPath expressions against JSON data with live results.
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What is JSONPath?
JSONPath is a query language for JSON, similar to XPath for XML. It allows you to navigate and extract data from JSON documents using path expressions.
| Operator | Description |
|---|---|
| $ | Root object |
| .key | Child by key |
| ['key'] | Child by key (bracket notation) |
| [n] | Array index (0-based) |
| [*] | Wildcard (all children) |
| .. | Deep scan (recursive descent) |
Frequently Asked Questions
What is the difference between JSONPath and JMESPath?
JSONPath is inspired by XPath and uses a similar syntax with $ as root and . for child access. JMESPath is a separate specification used by AWS CLI with a different syntax.
Is my JSON data stored on a server?
No. All processing happens entirely in your browser using JavaScript. Your JSON data never leaves your device.
Does this support JSONPath filter expressions?
This tool supports basic JSONPath syntax including dot notation, bracket notation, wildcards, array indexing, and deep scan. Full filter expressions [?(@.price>10)] are shown as examples but the implementation covers the most commonly used operators.
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