Security, Privacy & Crypto

Cryptographic hashing, passwords, token generation, text redactor, PII masker, and barcode generators.

Free Barcode Generator (Code 128 & Code 39)

Generate scannable 1D barcodes in Code 128 and Code 39 formats with instant vector SVG and PNG download.

Validate credit cards, IMEI device IDs, and account numbers using the Luhn modulo 10 checksum algorithm.

Detect and redact sensitive personal information (emails, phone numbers, credit cards, IP addresses, SSN/PAN) from text.

Generate memorable, high-entropy passphrases using Web Crypto CSPRNG randomness.

Compute cryptographic SHA-256 and MD5 integrity hashes directly from local files using browser Web Crypto.

Generate commercial retail barcodes in EAN-13, UPC-A, and Code 128 formats with checksum validation.

Calculate password information entropy in bits and estimate brute-force cracking times across consumer GPUs and supercomputers.

Generate cryptographic Hash-based Message Authentication Codes (HMAC) using native Web Crypto API in Hex and Base64.

Locally detect and redact sensitive Personally Identifiable Information (emails, credit cards, phones, SSNs, IPs) from text.

Decode, inspect, and evaluate JSON Web Tokens (JWT) headers, claims, and expiry timestamps client-side.

Calculate hash iterations, server execution latency, and OWASP security recommendations for bcrypt rounds.