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5 tools
Validator utilities that check input against a format's real specification.
Pretty-print, minify, and validate JSON with clear error messages.
Test and debug Regular Expressions against text strings in real-time.
Validate email addresses for syntax errors, typos, and check for disposable domains.
Securely validate credit card numbers using the Luhn algorithm. 100% client-side privacy.
Validate URLs and instantly parse them into their core components (protocol, host, path, params).