.htaccess Validator - Online Check Syntax

Developer Tools Validator Apache config .htaccess validator

.htaccess Validator - Check Syntax Online

Instantly validate your .htaccess file for syntax errors, misconfigurations, and security best practices.

.htaccess Code

Validation Results

Results will appear here after validation.

Frequently Asked Questions

.htaccess is a configuration file used by Apache web servers. It allows you to change server behavior on a per‑directory basis, including URL rewriting, access control, error pages, and more.

A single typo or misformatted rule in .htaccess can break your entire website, leading to a 500 Internal Server Error. This online validator helps you catch errors before you deploy the file.

It spots unknown directives, unclosed block tags (like <IfModule>), missing rewrite rule parameters, and gives security suggestions such as enabling Options -Indexes.

Yes, this tool runs entirely in your browser. You can paste your .htaccess content and validate it immediately – no server upload required.

Revert your .htaccess file to a backup or remove recent changes. Use this validator to check the syntax, paying special attention to RewriteRule and unrecognized commands. Also ensure the correct modules are enabled.

At minimum, implement Header set X-Content-Type-Options "nosniff" and Header always set X-Frame-Options "SAMEORIGIN". This tool will warn you if they are missing.

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