JSON Schema Validator
Validate JSON data against a JSON Schema (draft 2020-12 / 07 keywords) and see each error with its path. Runs without eval; only local $ref is supported. Free, fast, no sign-up required.
How to use JSON Schema Validator
- Open the tool at the top of this page.
- Upload your file or enter your text/data.
- Click the action button and download your result instantly — no sign-up needed.
About JSON Schema Validator
Category: Developer Tools. Validate JSON data against a JSON Schema (draft 2020-12 / 07 keywords) and see each error with its path. Runs without eval; only local $ref is supported. No account or installation required. Works on any device — Windows, Mac, Android, iPhone.
Free limit: 40 MB per file · Premium limit: 500 MB per file · Files auto-deleted in 1 hour.
Frequently Asked Questions
Is this tool free?
Yes. Toolysite is 100% free to use. No account required.
Do I need to install anything?
No. Everything works online in your browser. No software download needed.
Is my data safe?
Yes. Your files are processed securely, never shared, and automatically deleted within 1 hour.
What is the file upload limit?
Free users can upload up to 40 MB — which is higher than most tools websites. For larger files up to 500 MB, upgrade to Premium.