Argon2 Hash Generator

Generate secure Argon2 hashes for passwords and sensitive data with our advanced online tool

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Modern Security

Uses Argon2, the winner of Password Hashing Competition 2015

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Configurable Parameters

Adjust memory cost, time cost, and parallelism for your security needs

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Side-Channel Resistant

Resistant to GPU and ASIC attacks, perfect for password hashing

🔒 Client-Side Processing
All hashing is done in your browser using WebAssembly. Your sensitive data never leaves your device.

Enter password or text to hash

Argon2 Variant

Time Cost (Iterations)

Higher = more secure, slower

Memory Cost (KiB)

Higher = more secure, more RAM

Parallelism (Threads)

Higher = utilizes more CPU cores

Salt (Optional)

Your Argon2 hash will appear here...

💡 For developers: Generate Argon2 hashes with:

echo -n "password" | argon2 "somesalt" -id -t 3 -m 16 -p 4

# Generate Argon2id hash using command line

password_hash("password", PASSWORD_ARGON2ID)

# PHP 7.2+ built-in Argon2 support

About Argon2 Hash Algorithm

Argon2 is a modern, secure password hashing algorithm that won the Password Hashing Competition in 2015. It is designed to be memory-hard, making it resistant to GPU and ASIC attacks, and is recommended for new applications requiring password hashing.

Argon2 Variants

• Argon2id - (Recommended) Hybrid version that combines Argon2i and Argon2d. Resistant to both side-channel and time-memory trade-off attacks.
• Argon2i - Data-independent version. Resistant to side-channel attacks but vulnerable to trade-off attacks.
• Argon2d - Data-dependent version. Faster and more resistant to trade-off attacks but vulnerable to side-channel attacks.

Key Security Features

• Memory-hard: Requires large amounts of memory, making GPU/ASIC attacks expensive
• Configurable parameters: Time, memory, and parallelism can be adjusted for security needs
• Salt support: Built-in protection against rainbow table attacks
• Future-proof: Designed to remain secure against advancing hardware capabilities

✅ Security Recommendation: Argon2 is the current gold standard for password hashing. Use Argon2id with appropriate time and memory costs for your security requirements.

Recommended Parameters

Use Case	Time Cost	Memory Cost	Parallelism
Web Applications	2-3	64-128 MiB	2-4
Desktop Applications	3-5	128-256 MiB	4-8
High Security	4-6	256-512 MiB	4-8

Argon2 vs Other Hash Algorithms

Algorithm	Memory Hard	GPU Resistance	Recommended Use
Argon2	✅ Yes	✅ Excellent	Password hashing
bcrypt	⚠️ Partial	⚠️ Good	Legacy systems
PBKDF2	❌ No	❌ Poor	Compatibility
SHA-256	❌ No	❌ Poor	Data integrity, not passwords

💡 For password storage, always use dedicated password hashing algorithms like Argon2, bcrypt, or PBKDF2. Never use fast hash functions like MD5, SHA-1, or SHA-256 for passwords.