Free online security and privacy tools

Shows how identifiable your browser fingerprint is compared with other visitors.

Tests how well your browser blocks trackers and how unique its fingerprint looks.

Loads a website and reports ad trackers, third-party cookies, keystroke capture and session recording it finds.

Generates random multi-word passphrases and explains why passphrases beat short passwords.

Creates random passwords or passphrases with adjustable length and character rules.

Rates a password and estimates how long a brute-force attack would take.

Encodes and decodes the Beaufort cipher.

Analyses ciphertext and suggests which type of cipher produced it.

Encodes and decodes columnar transposition ciphers.

Encodes and decodes four-square digraph ciphers.

Charts letter frequencies in a text to help break ciphers.

Translates Morse code to text and text to Morse code.

Encodes and decodes Playfair ciphers.

Encodes and decodes rail fence ciphers with a chosen number of rails.

Solves substitution ciphers with frequency tools and manual guesses.

Encodes and decodes Vigenere ciphers and helps guess the key.

Tests what the browser Geolocation API reveals when permission is granted.

Encrypts and decrypts Caesar and ROT13 text with step explanations.

Applies a simple columnar transposition cipher and shows the grid.

Walks through RSA key generation, encryption and decryption with small numbers.

Converts between text, ASCII codes, hex and binary.

Converts text to binary code and decodes binary back to text.

Translates text to Braille and Braille back to text.

Suggests which cipher or code a message may use from its pattern.