Alpha-2
- US -> valid
data validator
Validate ISO country codes (alpha-2 and alpha-3) client-side.
Supports a wide set of alpha-2 and alpha-3 codes.
Case-insensitive input; outputs uppercase.
Runs entirely client-side/offline; no data leaves the page.
data
Postal/ZIP Code Validator
Validate postal/ZIP codes by country (US, CA, UK, DE, FR, AU, NL, ES, IT, BR, IN, SG, NZ, CH, JP) entirely in your browser.
web
URL Validator
Validate HTTP/HTTPS URLs locally—parse host/path and catch malformed links before publishing or sending to APIs.
data
IBAN Validator
Validate IBAN structure and checksum locally to catch typos before payouts—no data leaves your browser.
Format-only; does not verify geopolitical status or address validity.