Password Encryption Utility
Encrypt and hash passwords and strings using certified cryptographic algorithms (SHA-256, SHA-512, MD5, bcrypt).
Free Password Encryption & Hashing Utility
Encrypt and hash passwords and strings using certified cryptographic algorithms (SHA-256, SHA-512, MD5, bcrypt).
Quick Answer & Overview
The Password Encryption Utility computes one-way cryptographic hash digests from plaintext passwords using industry standards such as SHA-256, SHA-512, bcrypt, and MD5. It allows developers and sysadmins to prepare secure password entries for user databases, configuration files, and authentication tokens.
Enter Plaintext Password
Type or paste your password string into the cryptographic input field.
Select Hashing Algorithm
Choose between modern SHA-256, SHA-512, bcrypt, or legacy MD5 and SHA-1 hashing.
Compute Cryptographic Hash
Our cryptographic engine runs one-way mathematical hashing, computing a unique hex digest.
Copy Encrypted Hash
Copy your generated hash with one click for database authentication or password comparison.
Cryptographic Hashing for Modern Security
Storing plaintext passwords in web application databases is an extreme security liability that violates GDPR, HIPAA, and PCI-DSS compliance. Our password encryption utility lets developers compute irreversible cryptographic hash digests (SHA-256, SHA-512, bcrypt) directly in the browser using the native Web Cryptography API.
SHA-256 & SHA-512
Standard cryptographic hash functions delivering 256-bit and 512-bit collision-resistant digests.
100% Client-Side Privacy
All hashing runs directly in your browser memory; passwords never touch our servers.
Legacy MD5 & SHA-1
Support for legacy system verification, checksum matching, and software compatibility audits.
Cryptographic Algorithms Comparison
| Algorithm | Digest Output Length | Security Level & Use Case |
|---|---|---|
| SHA-256 | 64 Hex Characters (256 bits) | High; digital signatures, Bitcoin, and API tokens. |
| SHA-512 | 128 Hex Characters (512 bits) | Ultra High; enterprise security and military encryption. |
| MD5 | 32 Hex Characters (128 bits) | Legacy; file integrity verification only (deprecated for auth). |
Frequently Asked Questions
What is the difference between encryption and hashing?
Encryption is a two-way function where ciphertext can be decrypted back into plaintext using a key. Hashing is a one-way mathematical transformation; once a password is converted into a hash digest, it cannot be mathematically reversed.
Which algorithm is recommended for storing passwords in a database?
For storing user passwords in production databases, salted slow hashing algorithms like bcrypt, Argon2, or PBKDF2 are recommended over fast hashes like MD5 or SHA-256 to prevent GPU brute-force attacks.
What is salt in password hashing?
A salt is a cryptographically random string appended to passwords before hashing. Salt prevents rainbow table lookup attacks and ensures identical passwords produce completely different hash digests.
Can an MD5 or SHA-256 hash be decrypted back to plaintext?
No. Hash functions are mathematically irreversible. However, weak or common passwords (like "password123") can be matched against precomputed rainbow table dictionaries.
Is my password sent to your servers?
No. Hashing algorithms are executed client-side via the Web Cryptography API in your browser. Your plain text passwords are never transmitted across the network.
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