Thymeleaf Validation

Validate Thymeleaf templates for syntax errors, expression validity, and proper attribute usage.

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Total Calculations Run

< 15ms

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100%

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About This Tool

This Thymeleaf Validation Online tool allows developers to quickly validate Thymeleaf templates without needing to deploy their application. It checks for common syntax errors, validates Thymeleaf expressions (including Spring EL), verifies variable usage, and ensures proper attribute formatting. The tool provides detailed error messages with line numbers and suggestions for fixes, making it invaluable for Thymeleaf developers working on Spring Boot or other Java web applications.

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How to Use

Paste your Thymeleaf template HTML into the text area
Select validation options (syntax checking, expression validation, etc.)
Click the 'Validate Template' button
Review the validation results showing errors, warnings, and success messages
Fix any issues highlighted in the results and re-validate

Frequently Asked Questions

Find Quick Answers

What types of Thymeleaf validation does this tool perform?

The tool validates Thymeleaf syntax, checks expression validity (including Spring Expression Language), verifies variable references, validates attribute usage, and checks for common template errors.

Does this tool require server-side processing or API keys?

No, all validation is performed client-side in your browser using JavaScript. No data is sent to external servers, ensuring your template code remains private.

Can I validate complex Thymeleaf expressions with this tool?

Yes, the tool supports validation of standard Thymeleaf expressions including variable expressions (${...}), selection expressions (*{...}), message expressions (#{...}), link URL expressions (@{...}), and fragment expressions (~{...}).

What happens if my template has multiple errors?

The tool will identify and display all validation errors found in your template, with each error showing the line number, error type, and specific issue to help you fix them efficiently.

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