Security & Cryptography Utilities
Secure your digital workspace with our suite of free cryptography and utility tools. Generate highly secure, random passwords, calculate SHA-256, SHA-512, or MD5 cryptographic hashes, and encode/decode text or files using Base64. Built using standard, trusted cryptographic libraries directly in your browser, these tools guarantee that your generated passwords and sensitive data never transit across the internet.
Explore Security & Cryptography (17)
MD5 Hash Generator
Calculate standard cryptographic 32-character MD5 checksums for strings.
SHA-256 Hash Generator
Generate secure SHA-256 cryptographic hashes for text.
SHA-512 Hash Generator
Generate 128-character SHA-512 cryptographic hashes for text.
Password Generator
Generate highly secure, custom-length random password credentials.
Bcrypt Hash Generator & Verifier
Generate salted bcrypt password hashes and verify matches.
HMAC Generator
Calculate Keyed-Hash Message Authentication Codes (HMAC) using hashes.
ROT13 Cipher
Rotate text characters by 13 positions to obfuscate contents.
Caesar Cipher
Encrypt or decrypt messages using classic character shift cipher keys.
Base32 Encoder/Decoder
Encode text strings into Base32 layout or decode them back.
Password Strength Meter
Evaluate password complexity, entropy scores, and estimate crack times.
RSA Key Pair Generator
Generate public and private keys (512, 1024, 2048 bits) in PEM format.
Password Leak Checker
Check if a password has been compromised against common leaked databases.
Subnet IPv4 Calculator
Calculate network/broadcast address, range, and host counts from CIDR blocks.
Port Status Scanner
Simulate diagnostic port connection checklists (e.g. 80, 443, 22, 21, 3306).
XSS Payload Tester
Check input scripts against common cross-site scripting payload injections.
JWKS & JWT Token Signature Verifier
Decode JSON Web Tokens and verify signatures against JWKS public key sets offline.
Webhook HMAC-SHA256 Signature Verifier
Generate and verify HMAC-SHA256 signatures for Stripe, GitHub, and Shopify API webhooks.
Why Use Our Security & Cryptography?
Our tools are built with security, high-performance, and excellent UI in mind. Here is what makes them unique.
Cryptographically Secure
Uses browser Web Crypto APIs for true randomness.
Pure Offline Execution
No data is sent to a remote server.
Industry Standard Hashes
Standard hash algorithms for validation.
Frequently Asked Questions
Find answers to common questions about Security & Cryptography.
Detailed Guide to Security & Cryptography Utilities
In an era of rising cybersecurity threats, protecting digital credentials, verifying data integrity, and securing web configurations are critical requirements. Our security suite provides developers and system administrators with essential tools to perform encryption, hashing, and access checks safely. The Password Generator uses browser cryptographically secure pseudorandom number generators (CSPRNG) to generate high-entropy strings, protecting your accounts from brute-force exploits. With the Password Strength Meter, you can instantly test passwords for entropy level, dictionary vulnerability, and estimated crack times.
To verify file integrity and build secure tokens, developers can utilize our cryptographic hash generators for SHA-256, SHA-512, MD5, and HMAC. These utilities run entirely in client-side Web Crypto APIs, allowing you to compute checksums without uploading confidential files. Networking tools like the Subnet Calculator and Port Scanner help engineers analyze IP address ranges, configure firewall boundaries, and audit network routes. By avoiding external API roundtrips, these tools provide a secure, offline environment for daily security audits. Whether you are encoding payloads via Base32, testing inputs for XSS injection vectors, decoding JWT claims, or generating public/private RSA keys, these utilities guarantee complete privacy and zero data leakage.
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