Quick Start

Go to HeronTool's 'Validate' toolkit and choose the function you need. For JSON data, use JSON Validator to paste content; it will show syntax errors and structural issues. To check formats like email or date, use Regex Tester to write and test patterns.

Step-by-Step Tutorial

  1. Validate JSON: Paste code into JSON Validator and click validate. To beautify or locate errors, first use JSON Formatter to format, then paste for validation.
  2. Validate ID numbers: For ID cards or credit cards, use Regex Tester with standard patterns; if matches, it's valid.
  3. Structured data: Check schema or field completeness by combining JSON Validator with Regex Tester for value formats.

Auxiliary Checks

Ensure input meets length and SEO requirements: use Title Length to check character count, Description Length for meta descriptions. Then run SEO Checklist for full page elements, and Heading Checker to verify heading hierarchy. For visual content, Contrast Checker ensures readability.

FAQ

Q: JSON validation always reports errors?
A: Format first with JSON Formatter; error messages become clearer. Also check string escaping.
Q: How to quickly test regex?
A: Provide sample data in Regex Tester; matches highlight in real time as you adjust.
Q: Can these tools process batches?
A: Not yet; paste individually. Combine with SEO Checklist for a full review.