Argon2 Hash Generator & Verifier
Generate secure Argon2 hashes and verify passwords against existing hashes. Argon2 is the winner of the Password Hashing Competition and recommended for new applications with configurable memory, time, and parallelism parameters.
Argon2id combines the benefits of both Argon2i and Argon2d and is recommended for most use cases.
Estimated Total Memory: 256 MB
Security Level: Moderate
Recommendation: For password storage, use at least 64MB memory cost with Argon2id.
About Argon2 Hash Generator & Verifier
The Argon2 Hash Generator & Verifier is a state-of-the-art security tool that creates Argon2 password hashes and verifies passwords against existing Argon2 hashes. Argon2 is the official winner of the Password Hashing Competition (PHC) and represents the current best practice for password hashing, offering superior resistance to both GPU and ASIC-based attacks through configurable memory, time, and parallelism parameters.
Why use a Argon2 Hash Generator & Verifier?
Argon2 is officially recommended by security experts as the gold standard for new password hashing implementations because it provides the best defense against modern attack methods. Its three-dimensional cost approach (memory, time, parallelism) makes it highly resistant to specialized hardware attacks while allowing fine-tuned performance optimization. As the PHC winner, Argon2 represents the cutting edge of password security technology.
Who is it for?
Essential for modern security architects implementing next-generation authentication systems, security researchers requiring state-of-the-art password protection, and enterprise developers building new applications with maximum security requirements. Perfect for startups establishing security foundations, fintech companies handling sensitive data, and any organization prioritizing future-proof password security.
How to use the tool
- Choose between Generate Hash mode (for creating new hashes) or Verify Hash mode (for checking passwords against existing hashes)
- For hash generation: Enter the password you want to hash using the industry-leading Argon2 algorithm
- Select the Argon2 variant based on your security requirements:
- • Argon2id (Recommended - Hybrid): Combines benefits of both Argon2i and Argon2d, recommended for most use cases
- • Argon2i (Data-independent): Provides side-channel attack resistance, slower but more secure against timing attacks
- • Argon2d (Data-dependent): Faster execution but potentially vulnerable to side-channel attacks
- Choose a configuration preset for quick setup:
- • Interactive (64MB, 2 iterations, 1 thread): For real-time applications requiring fast response
- • Moderate (256MB, 3 iterations, 4 threads): Balanced security and performance for backend authentication
- • Sensitive (1GB, 4 iterations, 8 threads): Maximum security for high-value data protection
- Configure individual parameters for custom security levels:
- • Memory Cost: Controls memory usage (8MB to 2GB) - higher values resist GPU/ASIC attacks better
- • Time Cost: Number of iterations (1-10) - more iterations increase computation time
- • Parallelism: Number of threads (1-16) - affects memory bandwidth utilization
- • Hash Length: Output size in bytes (16, 32, or 64 bytes) - longer hashes provide more entropy
- Review the estimated total memory usage and security level before generating
- Click 'Generate Argon2 Hash' to create a cryptographically secure hash with automatic salt generation
- Copy the resulting Argon2 hash for implementation in your security system
- For verification: Switch to Verify mode, enter the password and existing hash to check authenticity
- Parameter Guidelines for different use cases:
- • Interactive Applications: 64MB memory, 2-3 iterations, 1-4 threads (suitable for login forms)
- • Backend Authentication: 256MB memory, 3-4 iterations, 4-8 threads (server-side processing)
- • High Security Systems: 1GB+ memory, 4+ iterations, 8+ threads (maximum protection)
- Performance considerations: Higher parameters provide better security but require more processing time and memory - test your configuration to ensure acceptable performance for your specific use case
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