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JSON Validator & Viewer

Validate, debug, and inspect your JSON data with real-time error reporting.

Input JSON

Result & Preview

Professional JSON Validation & Debugging

The Kodivio JSON Validator is a mission-critical tool for developers who demand accuracy. JSON is notoriously sensitive to syntax — a single missing quote or misplaced comma can break your entire application. Our validator doesn't just check your data; it identifies the exact line and character of the error.

Expert Debugging Features

RFC 8259 Compliance

We validate against the latest JSON standards to ensure cross-platform compatibility for your data.

Detailed Error Mapping

Receive human-readable error messages like "Unexpected token" or "Expected comma" with precise coordinates.

Why Use a Dedicated Validator?

While IDEs have built-in linting, a web-based validator provides a neutral, fast environment to verify data from external APIs, webhooks, or legacy databases.

"Our validator process everything client-side, making it safe to use even with sensitive JSON configuration files and private keys."

JSON Validation FAQs

What are the most common JSON errors?

Trailing commas, missing quotes around keys, and using single quotes instead of double quotes are the top culprits.

Is this tool free for commercial use?

Yes. Kodivio's developer suite is 100% free for individual developers and enterprise teams alike.