All JSON Tools

Format, indent and beautify any JSON. Supports tree view, syntax highlighting, and repair.

Pretty-print raw or minified JSON with customisable indentation.

Instantly beautify compressed JSON into a clean, readable format.

Strip whitespace to compress JSON for production payloads.

Detect syntax errors in real time with precise error messages and line highlighting.

Compare two JSON objects side-by-side and instantly see every addition, deletion and change.

Test JSONPath expressions against any JSON document in real time.

Convert JSON to a JavaScript string literal via JSON.stringify().

Generate TypeScript interfaces from JSON automatically.

Convert JSON to Pydantic v2 models for FastAPI and AI pipelines.

Generate Zod schemas for runtime TypeScript validation.

Convert JSON to YAML for Kubernetes, Docker and CI/CD configs.

Export JSON arrays to CSV for Excel and Google Sheets.

Transform JSON to XML for SOAP APIs and legacy system integration.

Convert JSON to TOML for Rust Cargo and Python configs.

Parse XML including attributes and nested elements into clean JSON.

Automatically generate JSON Schema Draft-07 from any sample JSON.

Convert JSON into LLM-ready prompt templates for AI workflows.

Convert JSON to Token-Optimised Object Notation — a compact LLM-friendly format.

Convert Token-Optimised Object Notation back to standard JSON.

Decode any JWT to inspect header, payload and claims — 100% offline.

Create and sign JSON Web Tokens with HS256 using the browser Web Crypto API.