HTAccess File Validator — Test Apache Rewrite Rules
This tool helps you validate and debug your Apache .htaccess file by testing mod_rewrite rules against specific URLs. Simply paste your .htaccess content and enter a test URL to see exactly which rules apply and in what order. Perfect for troubleshooting redirect issues, URL rewriting problems, and understanding how Apache processes your rewrite rules.
How it works
The validator parses your .htaccess file and identifies RewriteCond and RewriteRule directives. It then simulates Apache's mod_rewrite processing by evaluating each condition against your test URL, showing you step-by-step which rules are triggered and why. This gives you the same debugging information you'd see in Apache's rewrite log, helping you understand exactly how your rules behave.
Great for
- Debugging redirect loops and 404 errors in your website
- Testing rewrite rules before deploying to production
- Understanding how Apache processes complex rewrite conditions
- Troubleshooting URL rewriting issues in development
- Learning how mod_rewrite works with practical examples
Key Features
- Parse and validate .htaccess syntax automatically
- Step-by-step rule evaluation with clear status indicators
- Simulate Apache's mod_rewrite processing logic
- Handle complex RewriteCond chains and RewriteRule combinations
- Show which rules are met or not met with explanations
- Support for common rewrite patterns and flags
Tips for Best Results
- Include the full .htaccess content, including RewriteEngine On
- Test with realistic URLs that match your site's structure
- Use the [L] flag to stop processing after a rule matches
- Check that your RewriteCond patterns match your test URLs
- Remember that conditions are processed in order from top to bottom