Blowfish Cipher – Fast & Secure Symmetric Encryption
Encrypt and decrypt data with the legendary Blowfish algorithm. Variable keys, multiple modes, instant results.
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Blowfish Encryption
Blowfish Info
Fast & Efficient
Blowfish is significantly faster than DES and can be used as a drop-in replacement
Variable Key Length
Supports keys from 32 to 448 bits (4 to 56 bytes)
64-bit Blocks
Processes data in 64-bit blocks for efficient encryption
Example Inputs
Quick Tips
- Use CBC mode for better security
- Generate random keys (256-bit recommended)
- Always use IV for CBC, CFB, OFB modes
- Keep your encryption key secret
- Use same settings for encrypt/decrypt
Examples of Real-World Usage
6 real-world examples
Database Encryption
Encrypt sensitive database fields like passwords, credit card numbers, and personal information before storage. Blowfish's speed makes it ideal for high-throughput database operations.
File & Disk Encryption
Secure files on disk with fast Blowfish encryption. Used in various disk encryption software and backup tools for protecting stored data.
VPN & Network Security
Implement secure VPN tunnels and network communications. Blowfish is used in OpenVPN and other network security protocols.
Password Managers
Many password managers use Blowfish to encrypt stored credentials. Its speed and security make it perfect for frequent encrypt/decrypt operations.
Cloud Storage Encryption
Encrypt files before uploading to cloud storage services. Ensures your data remains private even if the cloud provider is compromised.
Legacy System Integration
Work with older systems that use Blowfish encryption. Maintain compatibility while ensuring data security in legacy applications.
Powerful Blowfish Encryption Features
Complete Blowfish encryption toolkit with variable key lengths, multiple cipher modes, IV support, and real-time processing. Perfect for database encryption, file security, and VPN applications.
Blowfish Encryption
Fast symmetric-key block cipher with 64-bit blocks and variable-length keys
Instant Decryption
Decrypt Blowfish-encrypted data using the same key used for encryption
Variable Key Length
Support for keys from 32 to 448 bits - flexible security levels
Fast Performance
Blowfish is optimized for speed - significantly faster than DES encryption
Multiple Cipher Modes
CBC, CFB, OFB, and ECB modes for different encryption scenarios
Real-Time Processing
Instant encryption and decryption with live output updates
Quick Copy & Download
Copy results to clipboard or download as files for easy sharing
Base64 & Hex Output
Choose between Base64 or Hexadecimal output formats
How to Use
Simple 4-step process
Step 1
Generate or enter your encryption key (256-bit recommended for security)
Step 2
Choose cipher mode (CBC recommended) and output format (Base64 or Hex)
Step 3
Enter text to encrypt or paste encrypted text to decrypt
Step 4
Copy the output to clipboard or download as a text file
Frequently Asked Questions
Everything you need to know about our process, pricing, and technical capabilities.
See Full FAQBlowfish is a symmetric-key block cipher designed by Bruce Schneier in 1993. It's known for its speed and effectiveness, encrypting data in 64-bit blocks with variable-length keys from 32 to 448 bits.
Blowfish is faster in some scenarios and uses variable key lengths, while AES has fixed key sizes (128, 192, 256-bit) and is the current industry standard. AES is recommended for new applications requiring long-term security.
For maximum security, use 256-bit (64 hex characters) or higher. The tool defaults to 256-bit keys. Longer keys provide better security but may impact performance slightly.
CBC (Cipher Block Chaining) is recommended for most use cases as it provides good security. Avoid ECB mode for sensitive data as it can reveal patterns. Use CFB or OFB for streaming encryption.
IV (Initialization Vector) is a random value used in CBC, CFB, and OFB modes to ensure that identical plaintext encrypts to different ciphertext. It adds randomness and prevents pattern detection.
Yes! Blowfish is a standard algorithm. As long as you use the same key, IV, cipher mode, and padding, you can decrypt the data with any Blowfish-compatible tool or library.
Yes, Blowfish remains secure for most applications. However, its 64-bit block size can be a limitation for very large data sets. For new projects, AES is generally recommended.
No, all encryption and decryption happens locally in your browser. Your keys and data never leave your device.
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