JSON Pointer Validator
Validate JSON Pointer syntax.
Validate JSON Pointer strings (RFC 6901) instantly. Free JSON Pointer syntax checker.
Calculator Inputs
About JSON Pointer
Validate JSON Pointer syntax.
Checks RFC 6901 syntax and optionally resolves against JSON.
Where it is used
JSON Patch, API debugging, config paths.
How to use the JSON Pointer
- JSON Pointer — enter the value (e.g. /store/book/0/title).
- Target JSON — enter the value (e.g. {"store":{"book":[{"title":"A"}]}}).
- Calculate — press the Calculate button to see the result instantly above.
Formula
RFC 6901: "" or slash-separated tokens; "~1"→"/", "~0"→"~".
Examples
Example
pointer:/store/book/0/title
json:{"store":{"book":[{"title":"A"}]}}
Result: VALID ✓
Frequently Asked Questions
- Array indices?
- Use /0, /1…; "-" means the hypothetical end.