Cryptographically secure password generators, UUID v4/v7 generators, QR code makers, and hash calculators.
Generate secure, URL-friendly 21-character NanoIDs with custom alphabet dictionaries.
Generate next-generation collision-resistant CUID2 strings for distributed databases.
Generate Luhn Modulo-10 valid mock credit card numbers for billing sandbox QA.
Generate RFC 4193 Unique Local IPv6 addresses (`fd00::/8`) and /64 subnets.
Generate valid Semantic Versioning (SemVer 2.0.0) release tags with pre-release labels.
Generate RFC 7517 JSON Web Key Set (JWKS) structures for OAuth2 and OIDC sandboxes.
Generate 12-character short container IDs and 64-character SHA256 image hashes.
Generate C# and .NET formatted GUIDs in N, D, B, and P string formats.
Generate mock 9-digit US EIN tax IDs (`XX-XXXXXXX`) for sandbox invoicing testing.
Generate validly formatted mock International Bank Account Numbers for fintech sandbox testing.
Generate standardized product inventory SKUs (e.g. APP-TSH-BLK-MD-892).
Generate standard GraphQL query and mutation requests with variables.
Generate cryptographically secure 4-digit and 6-digit numerical passcode PINs.
Generate sample 12-word recovery seed phrases for crypto wallet testing.
Generate realistic B2B SaaS startup names and matching .com domains for pitch decks.
Generate dummy 5-star e-commerce reviews with customer feedback and star ratings.
Generate random 16-byte, 32-byte, and 64-byte hex token strings for secrets.
Generate realistic mock user datasets in JSON format for prototyping and frontend testing.
Validate credit card checksums and test digits using the ISO/IEC 7812 Luhn formula.
Generate realistic mock US, UK, Canadian, and Australian street addresses for form testing.
Generate modern 2-stop and 3-stop linear CSS gradients with one-click copy.
Lookup card brand (Visa, Mastercard, Amex), type (Debit/Credit), and issuer by 6-digit BIN.
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