JSON tools

Everything here runs as a pure function inside your tab. That is what makes it safe to paste a real API response — the kind with customer emails, internal hostnames and a live bearer token in it.

Format

Formatter

Pretty-print, validate and sort JSON, with error messages that tell you what to fix.

Minifier

Strip every byte of whitespace and see exactly how much you saved.

Code generation

JSON → TypeScript

Generate named interfaces, with optionals and nullability inferred from every sample.

JSON → Zod

Generate a Zod schema, with formats, enums and optionals already applied.

JSON → JSON Schema

Generate a draft 2020-12 or draft-07 schema with $defs and required arrays.

Convert

JSON → CSV

Flatten nested records into a spreadsheet, with the column union taken across every row.

JSON → YAML

Convert JSON to YAML for Kubernetes manifests, CI configs and Compose files.

YAML → JSON

Parse YAML into JSON, with the failing line and column when it will not parse.

Flatten / unflatten

Collapse nested JSON to dotted paths, or rebuild the nesting from them.

Inspect

JSON diff

Compare two documents structurally, so reordered keys stop showing up as changes.

JSONPath tester

Query a document with JSONPath and see every match with its full path.

Secret & PII scanner

Find API keys, tokens and personal data in a payload, and mask them before you share it.