Security & Privacy Tools
Password checkers, hash generators and IP tools.
18 tools in this category.
Password Generator
Generate strong, random, secure passwords with custom length and symbols.
Test Card Validator (Luhn)
Check a test card number with the Luhn algorithm and identify its brand from the prefix. Validator only — it never generates card numbers. Free.
Email Validator
Validate an email address format with real syntax checks — format only, it cannot confirm a mailbox exists
IP Address Finder
Look up the IP address of a domain using the public Google DNS service, or find your own public IP
My IP Checker
See your public IP address and what your browser shares about your connection
Password Strength Checker
Check your password strength with real entropy, length and character-class scoring — checked in your browser only
SSL Checker
Check whether a website loads over secure HTTPS and how to verify its certificate in your browser
Disposable Email Checker
Check whether an email address uses a known disposable or temporary email domain, using a built-in list. A basic list check, not a live database. Free, no sign-up, works in your browser.
File Hash Checker
Calculate the SHA-256, SHA-1, SHA-384 or SHA-512 hash of any file in your browser and compare it with an expected hash. Free, no sign-up, works in your browser.
MD5 Hash Generator
Generate the MD5 hash of any text instantly in your browser. Note: MD5 is not secure for passwords — use it for checksums only. Free, no sign-up, works in your browser.
Random PIN Generator
Generate secure random numeric PINs of any length, with no repeats and optional no-leading-zero, for locks, cards and codes. Free, no sign-up, works in your browser.
Secure Notes Generator
Generate a strong random passphrase and recovery codes for your secure notes, plus a ready-to-use note template — all offline in your browser. Free, no sign-up, works in your browser.
Two-Factor Auth Code Generator
Generate a current 6-digit TOTP code from your Base32 secret, with a countdown to expiry — a local authenticator in your browser. Free, no sign-up, works in your browser.
VPN / IP Checker (Basic)
See your public IP address as websites see it, plus a WebRTC leak hint. Free browser check — it cannot prove whether you are on a VPN. No sign-up.
Website Safety Checker
Basic HTTPS and URL-pattern safety check for any web address. A basic pattern check only — not a security verdict. Free, no sign-up, works in your browser.