JSON Purrser – View, validate, and convert JSON directly in your browser

Summary: JSON Purrser is a browser-based JSON toolkit for developers working with APIs, configs, and data files. It offers smart field detection, schema validation, JSON diff comparison, interactive tree views, and one-click export to multiple programming languages without requiring signup or sending data to servers.

What it does

It detects fields like URLs, dates, colors, JWTs, and coordinates, provides validation and error fixing, supports multiple open JSON files in one workspace, and allows export to TypeScript, Python, Go, and more. The interface includes search, navigation, chart visualization, and customizable themes.

Who it's for

Developers who frequently handle JSON data for APIs, configuration files, and data processing tasks.

Why it matters

It consolidates viewing, validating, and converting JSON into a single browser tool, eliminating the need to switch between multiple applications.