Supercharge your testing workflow with valid credit card numbers
Format, validate, and minify JSON online
Valid test IBAN numbers for 70+ countries
Generate random MAC addresses for network testing
Placeholder text for designers and developers
Generate UUIDs v1, v4, v7 with bulk support
Generate strong passwords with entropy estimation
MD5, SHA-256, SHA-512 hashing — all client-side
Generate valid IMEI numbers for mobile app testing
Fast Base64 encoding and decoding with file support
Convert between hex and ASCII instantly
