Validation
Validate date and time formats including ISO8601, custom formats, leap year, and month/day validation
date-time-validatorValidation
Validate 9-character CUSIP North American securities identifiers with mod-10 check-digit verification, issuer base and issue-number breakdown.
cusip-validatorValidation
Validate ISO 4217 currency codes
currency-validatorSecurity
Parse an X.509 SSL/TLS certificate (paste PEM or upload .pem/.crt) and inspect subject, issuer, validity period with expiry status, public key, signature algorithm, serial, SANs, key usage and fingerprint. Like openssl x509 -text, visualised. Runs locally.
certificate-decoderValidation
Validate Hex (#FFF, #RRGGBB), RGB/RGBA, HSL/HSLA color code syntax
color-code-validatorSecurity
Run a real miniature BFV/CKKS pipeline over Z_q[x]/(xⁿ+1): exact invariant-noise budgets in bits, ciphertext multiplication with relinearization, modulus switching, SIMD slot packing and a bootstrapping refresh.
bfv-ckks-lwe-fhe-ciphertext-noise-budget-relin-and-bootstrapping-explainerValidation
Validate Amazon Resource Names (ARNs) format for AWS cloud resources
aws-arn-validatorValidation
Validate multiple email addresses at once with format checking and basic quality analysis
batch-email-validatorValidation
Validate and format multiple phone numbers at once with international format support
batch-phone-validatorCryptography
Generate bcrypt hash from password
bcrypt-generatorCryptography
Validate password against bcrypt hash
bcrypt-validatorSecurity
Generate cryptographically secure random key material driven by entropy budget — request N bits of entropy, get hex/base64/base64url output. Also supports custom-alphabet strings via crypto.randomInt (rejection-sampled, no modulo bias). Use this instead of Math.random()-based tools for any secret/key/token.
secure-random-generator