JSON Tools That Just Work

Format, validate, convert, and inspect JSON —all in your browser. No signup. No uploads. No AI training on your data.

Every developer reaches for JSON tools daily —but pasting production data into random websites is a security risk. These tools run entirely in your browser. Your JSON never leaves your machine. Batch conversion, diff checking, and schema validation included.

XML Formatter & Validator

Beautify, minify and validate XML with native DOMParser error reporting. Three indent styles, XML↔JSON conversion for SOAP, RSS, SVG and plist documents.

Format XML →

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 →

CSV →JSON Converter

Parse CSV to JSON with RFC 4180 quoted-field handling, BOM stripping and an honest type-inference switch (protects leading zeros in zip codes). Four output formats.

Convert CSV →JSON →

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 →

YAML →JSON Converter

Bidirectional YAML-JSON conversion. Paste Kubernetes manifests, Docker Compose files, or CI configs —get JSON back, and vice versa. Supports anchors, multi-line strings, and nested arrays.

Convert YAML →JSON →

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