Crypto & Security Tools
Free online cryptography and security tools — hashing, encryption, token and key generation, password strength, and more. Everything runs in your browser.
Crypto & Security Tools
Token generator — Generate random string with the chars you want, uppercase or lowercase letters, Hash Text Generator (MD5/SHA) — Hash a text string using the function you need : MD5, SHA1, SHA256, SHA224, SHA5Bcrypt — Hash and compare text string using bcrypt. Bcrypt is a password-hashing functionUUIDs generator — A Universally Unique Identifier (UUID) is a 128-bit number used to identify infoULID Unique ID Generator — Generate ULIDs (Universally Unique Lexicographically Sortable Identifiers) onlinEncrypt / decrypt text — Encrypt clear text and decrypt ciphertext using crypto algorithms like AES, TripBIP39 passphrase generator — Generate a BIP39 passphrase from an existing or random mnemonic, or get the mnemHMAC Signature Generator — Computes a hash-based message authentication code (HMAC) using a secret key and RSA key pair generator — Generate RSA public/private key pairs online for encryption, digital signatures,Password strength analyser — Discover the strength of your password with this client-side-only password strenPDF signature checker — Verify the signatures of a PDF file. A signed PDF file contains one or more sign
Crypto & Security Tools Guides
What Is a Random Token Generator and Why Do You Need One? API Rate Limiting: Strategies, Algorithms, and Implementation What Is Rate Limiting? Algorithms, Implementation, and Best Practices How to Hash Text Online: MD5, SHA-1, SHA-256, and More SHA-256 Hash: How It Works, How to Generate, and When to Use It Hash Functions Explained: MD5 vs SHA-256 vs bcrypt — Which Should You Use? What Is SHA-256? How the Hash Function Works and Where It Is Used Bcrypt Password Hashing: The Complete Developer Guide Password Hashing Explained: bcrypt, SHA-256, Argon2, and What to Actually Use How to Store Passwords Securely: The 2025 Developer Checklist UUID vs ULID: Which Unique ID Should You Use? UUID vs ULID: Which Unique ID Should You Use?
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