JSON Workbench

A workbench for JSON rather than another formatter. Paste or drop a file and explore it as a collapsible tree with types and sizes shown at every node, or switch to a formatted text view with adjustable indentation. Query into the structure with a dot-and-bracket path syntax to pull out exactly the branch you care about. The schema tab infers types across an entire array of records — including which keys are optional and where types are inconsistent — which is usually the fastest way to understand an unfamiliar API response. Convert what you have into CSV, YAML, or TypeScript interface definitions, and use the built-in stats to see depth, node counts and the largest arrays. Errors are reported with the exact line and column, and a repair pass fixes the usual culprits: trailing commas, single quotes and unquoted keys. Everything runs locally in your browser.