JSON Formatter & Validator
Paste minified JSON and get back indented, syntax-highlighted output with line numbers. Invalid JSON? Error points to the exact position. Supports JSONC and trailing commas.
Open Formatter →JSON → CSV Converter
Convert nested JSON arrays to CSV in one click. Handles flat arrays, nested objects with dot-notation flattening, and arrays of objects. Download as .csv file.
Convert JSON → CSV →JSON Diff Checker
Compare two JSON objects side-by-side. See added, removed, and changed keys at a glance. Works with deeply nested structures. Great for API response comparison.
Compare JSON →JSON Minifier
Strip whitespace and compress JSON to a single line. Shows compression ratio and byte savings. Useful for embedding JSON in URLs or minimizing payload size.
Minify JSON →JSON → Code Generator
Generate TypeScript interfaces, Go structs, Python dataclasses, or Java POJOs from JSON. Paste your API response and get typed code instantly.
Generate Code →JSON Schema Validator
Validate JSON against a JSON Schema (draft-07 / 2020-12). Catches missing required fields, wrong types, and pattern mismatches. Paste schema + data, get errors.
Validate Schema →