HLSL Checker

Validate HLSL shader code syntax and detect errors instantly

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About This Tool

The HLSL Checker is a comprehensive online tool for validating High-Level Shader Language (HLSL) code used in DirectX shader programming. It performs syntax validation, detects common errors, checks for deprecated functions, and provides detailed feedback on code quality. Whether you're developing for games, simulations, or graphics applications, this tool helps ensure your HLSL shaders are error-free and follow best practices.

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How to Use

Upload an HLSL file using the file upload area or paste your HLSL code directly into the text editor
Select validation options (basic syntax, strict validation, or include warnings)
Click the 'Validate HLSL Code' button to check your shader code
View detailed results including line numbers, error types, and suggestions for fixes
Download the validation report or copy corrected code if available

Frequently Asked Questions

Find Quick Answers

What HLSL versions does this tool support?

The tool supports HLSL versions from Shader Model 2.0 through 6.0, including common extensions and features used in modern DirectX 11 and 12 development.

Can I check vertex, pixel, and compute shaders?

Yes, the HLSL Checker validates all shader types including vertex shaders, pixel/fragment shaders, geometry shaders, hull/domain shaders, and compute shaders.

Does the tool store my HLSL code?

No, all validation happens client-side in your browser. Your code is never sent to our servers or stored anywhere.

What types of errors can it detect?

The tool detects syntax errors, semantic errors, type mismatches, undefined variables, deprecated functions, and common HLSL programming mistakes.

Need to run multiple calculations?

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