JSONPath Evaluator

JSONPath Evaluator is part of DevStudio — a free, in-browser collection of developer utilities that work without sign-up, installation, or any backend service. Evaluate JSONPath expressions against JSON data — root/child/recursive descent/filters, all running entirely on your device. Because the page never uploads what you paste, you can run sensitive payloads, configuration files, secrets, or production data through it with confidence: nothing leaves your browser tab. Use JSONPath Evaluator for ad-hoc debugging, code review, log triage, release prep, learning a new format, or as a quick scratchpad while you build. If you use this tool a lot, pair it with JSON Schema, XPath Evaluator, GraphQL Toolkit, and the rest of the DevStudio toolkit for related developer workflows.

Related developer tools

• JSON Schema — Infer schema and validate JSON data
• XPath Evaluator — Evaluate XPath expressions against XML documents — supports 1.0 syntax + namespace bindings
• GraphQL Toolkit — Schema-side companion to API Client: formatter, introspection tree, AST outline, codegen (TS / TS-resolvers / Java / fragment matcher) and a point-and-click query Explorer
• String Inspector — Escape strings, visualize whitespace, and inspect Unicode code points

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