JSON Web Tool

This tool provides a lightweight, server-free JSON validator and formatter. It accepts a JSON payload as text, checks syntax, and returns a clean, human readable version. Optional schema validation helps ensure conformance to API contracts. It is intended for developers, testers, and data engineers who routinely exchange JSON in development and integration tasks.
Conceptually, the tool performs a strict JSON parse, reports syntax errors with precise location, and outputs a formatted string. If a JSON Schema is supplied, standard schema rules are applied to identify violations and list them with data paths. When valid, the result includes both the parsed object and a pretty-printed string for logs and documentation.
Key differentiators include robust error reporting, clear formatting, and optional schema validation without requiring local tooling. Use cases span API testing, data validation in ETL pipelines, and preparing example payloads for documentation. The tool emphasizes speed, correctness, and interoperability across languages and environments.