Security & Cryptography

Generate strong, cryptographically secure passwords with custom criteria and entropy strength assessment locally.

Strongly encrypts (AES-GCM-256) or decrypts text on the browser using the specified password as a key.

Generates hash values ​​such as MD5, SHA-1, SHA-256, SHA-512, etc. from input text in real time.

Securely generate RSA key pairs (1024/2048/4096 bits) used for encryption and digital signatures on your browser.

Calculate the hash value (SHA-256/SHA-1/MD5) of the uploaded file and verify whether it matches the published value.

Secret text is embedded and extracted in the pixel data of an image (PNG) as extremely small noise that cannot be discerned by the human eye.

Generates and displays an OTP code for two-factor authentication that is updated every 30 seconds from a Google Authenticator-compatible secret key (Base32).

Encodes and decodes strings in real time to Base32 or Base58 format used by Bitcoin.

Converts regular Base64 strings and text to Base64 format that can be safely included in URL arguments (parameters).

Verifies whether the credit card number is compatible with the Luhn algorithm and automatically determines compatible card brands.

We measure the complexity and entropy of passwords and verify their resistance to cracking by offline and online attacks.

Visually experience the browser standard Web Crypto API and automatically generate encryption/signature JS code.

A detailed report on the current cryptographic connection method (TLS version, cipher suite, etc.) and communication protocol (HTTP/2/3).

Uses a DoH (DNS over HTTPS) server to resolve and display the DNS records (A, AAAA, MX, CNAME, TXT, NS, CAA) of the specified host.

Automatically extracts GPS coordinates hidden in photos (JPEG), displays the shooting location on a map, and warns of privacy leaks.

It disassembles and analyzes the components of suspicious shortened URLs and phishing URLs, and determines potential threat scores and external safety diagnostic information.

We compare communication standards from SSL 2.0 to TLS 1.3 and determine vulnerability information and cipher suite strength.

Loads the SSL/TLS digital certificate (PEM/Base64 format) locally and decodes and analyzes the CN, organization, expiration date, serial, and hash value.

You can easily determine from within your browser whether a specific port is communicating and responding to the IP address on your PC (localhost) or local network.

You can list, search, add, edit, and delete the browser's LocalStorage, SessionStorage, and Cookie values.

Performs a reverse lookup of the location information (country, region, city, time zone, ISP) of the input IP address (IPv4/IPv6) and maps it on a map.

Securely generate API keys, UUIDs, and private key tokens in bulk using a cryptographically secure random number generator (CSPRNG).

You can encrypt any local file using the AES-256 standard (.enc format) or decrypt it to its original file name just within your browser.

Visualizes the delivery route (Received) of raw email sources and the status of sending security authentication (SPF/DKIM/DMARC) in an easy-to-understand manner.

This is a simulator that allows you to switch the sandbox attribute (allow-scripts, etc.) of an iframe and verify browser security access restrictions.