Validator Tools (13 tools)

@

Validator

Email Validator

Validate email address format using regex. Check if an email follows RFC 5322 patterns.

URL

Validator

URL Validator

Check if a URL is properly formatted with protocol, domain, path, and query parameters.

CC

Validator

Card Validator

Validate credit card numbers using the Luhn algorithm. Detects Visa, Mastercard, Amex, and more.

IBN

Validator

IBAN Validator

Validate International Bank Account Numbers with country-specific length and checksum verification.

ISBN

Validator

ISBN Validator

Validate ISBN-10 and ISBN-13 book numbers with check digit verification.

Tel

Validator

Phone Format

Format phone numbers to E.164 international format. Supports country code detection.

IP

Validator

IP Validator

Validate IPv4 and IPv6 addresses. Detects address type and shows additional info.

J{}

Validator

JSON Lint

Validate JSON syntax quickly. Get clear error messages with line numbers for invalid JSON.

YML

Validator

YAML Lint

Validate YAML syntax with error detection. Checks for common YAML formatting issues.

DNS

Validator

Domain Check

Check if a domain name is properly formatted according to DNS naming rules.

#C

Validator

Hex Color

Validate hex color codes and preview the color. Supports 3, 6, and 8-digit formats.

CSS

Validator

CSS Validator

Basic CSS syntax validation. Check for unclosed braces, missing semicolons, and common errors.

/./

Validator

Regex Tester

Check if a regular expression is valid and test it against sample text with match highlighting.