UD5 Toolkit
SSH Key Fingerprint Viewer – Online MD5 & SHA256 Hash
Paste a public SSH key to generate its fingerprint. Verify host keys. Local Web Crypto.
Online Security & Privacy
9+ tools.htpasswd Generator – Online Apache Password Encrypter
Enter a username and password to generate an .htpasswd entry using bcrypt. Runs entirely in browser.
Shamir's Secret Sharing Demo - Online Split & Recover Secret
Split a secret string into N shares where K are needed to recover. Educational cryptography demo. Uses simple XOR-based scheme. Local.
Self-Destructing Note Creator - Online Write & Burn Encrypted
Write a note encrypted with a passphrase, share the link. Once opened and decrypted, the note is deleted from browser storage. Local only.
Image Steganography Encoder - Online Hide Text in Picture Pixels
Hide a secret message within an image by modifying LSB of pixels. Also decode. Pure canvas manipulation, local only. Fun privacy tool.
Password Entropy Calculator - Online Bits of Security Meter
Calculate the entropy (in bits) of a password based on character pool size and length. Visual strength meter with crack time estimation. Local only.
Diceware Passphrase Generator - Online Secure Word-based Password
Generate strong, memorable passphrases using the Diceware word list (EFF). Choose number of words. Cryprographically random selection. Privacy guaranteed.
Certificate Decoder (PEM) – Online View X.509 Details
Paste a PEM-encoded certificate to decode subject, issuer, validity, and fingerprints. Runs locally.
HTTP Security Header Checker - Online HSTS, CSP, X-Frame Analysis
Paste response headers string and get a security audit. Check presence and configuration of key security headers. Local analysis.