Validation
Audit heading structure from a live URL or pasted HTML, then flag skipped levels, multiple h1 usage, style-only heading abuse, and title metadata drift
heading-hierarchy-auditorSecurity
Scan one or more regex patterns for catastrophic backtracking risk, simulate evil inputs, and suggest safer rewrites
redos-regex-scannerValidation
Simulate the reading order and spoken semantics a screen reader may expose from a URL or raw HTML, then flag likely accessibility gaps
screen-reader-simulation-testerValidation
Validate US Employer Identification Numbers
ein-validatorValidation
Validate International Bank Account Numbers (IBAN)
iban-validatorValidation
Validate SWIFT/BIC bank identification codes
swift-code-validatorValidation
Validate EU VAT numbers
vat-validatorSecurity
Detect XSS (Cross-Site Scripting) attack vectors in input strings
xss-payload-detectorValidation
Validate Docker image names and tags according to Docker naming conventions
docker-image-tag-validatorValidation
Check if a string contains special characters like !@#$%^&*()_+ and identify which ones are present
special-character-validatorValidation
Validate password strength against common security requirements (uppercase, lowercase, numbers, special chars, length)
strong-password-validatorValidation
Validate International Bank Account Number (IBAN) and SWIFT/BIC codes with checksum verification
iban-swift-validator