What is an Argon2id Generator?
An Argon2id Generator computes a password hash using the Argon2id algorithm, currently OWASP's recommended choice for new password hashing systems.
Our free Argon2id Generator lets you configure memory cost, time cost, and parallelism to balance security against your infrastructure.
Argon2id won the Password Hashing Competition and is specifically designed to resist both brute-force GPU cracking attempts and specialized side-channel timing attacks simultaneously, which is exactly why OWASP now recommends it as the first choice for password hashing in new systems, ahead of older, still-acceptable alternatives like bcrypt.
Our Argon2id Generator computes a hash from your password using three configurable parameters that each serve a distinct purpose: memory cost sets how much RAM the hashing process requires, deliberately making GPU-based cracking attempts expensive since GPUs have comparatively limited memory per compute unit; time cost controls the number of internal iterations; and parallelism sets how many threads run simultaneously during the computation.
The relationship between Argon2's three variants is worth understanding: Argon2d resists GPU-based attacks most effectively but remains vulnerable to side-channel timing attacks, Argon2i resists those timing attacks but is comparatively weaker against GPU cracking specifically, and Argon2id combines both approaches together, which is exactly why it's the recommended default over either pure variant alone. A higher memory cost genuinely does increase resistance to attacks, but it also proportionally increases the resources and processing time your own server needs for every single login attempt, so the setting should be balanced against your actual available infrastructure rather than maximized without consideration for real-world server load. Similar to bcrypt, Argon2id automatically generates and embeds a random salt directly within the resulting hash string, so there's no need to separately generate, manage, or store a salt value as an additional implementation step.
Why Use an Argon2id Generator?
- ✅ Current Best-Practice Standard — OWASP's top recommendation for new systems
- ✅ Resist GPU and Timing Attacks — Combines protection against both attack types
- ✅ Configurable Security Parameters — Tune memory, time, and parallelism settings
- ✅ Automatic Salting — No need to manage a separate salt value
- 🪨 Computed Locally, Free
Features & Capabilities
- OWASP-Recommended Algorithm — The current top choice for new password systems
- Configurable Parameters — Adjust memory cost, time cost, and parallelism
- Automatic Salt Embedding — No separate salt management required
- Instant Generation — Get an Argon2id hash in seconds
- No Cost for Any Test Run — Free with no account needed
Who Uses an Argon2id Generator?
- Developers — Implement modern, best-practice password storage
- Security Professionals — Test and verify Argon2id implementations
- Students — Learn about current password hashing best practices
- System Architects — Design new authentication systems with current standards
- QA Testers — Generate test hashes for authentication testing
SEO & Performance Benefits
- 🪨 Strongest Current Protection — Resists both GPU and side-channel attacks
- 🎛️ Tunable Security — Adjust parameters to your specific infrastructure
- ⏱️ Time-Efficient — Generate a hash instantly for testing purposes
- 💻 Always Available — Works from any browser, any device
- 🎟️ Free to Use — No subscription needed for standard hashing
Best Practices for Using an Argon2id Generator
- Use Argon2id for New Systems — Currently the top recommended algorithm
- Balance Memory Cost With Server Capacity — Higher cost means more resources per login
- Never Reduce Parameters Below Recommended Minimums — Weakens the security guarantee
- Test Server Load Before Deploying — Confirm your infrastructure handles the chosen settings
- Review Parameters Periodically — Adjust as hardware and threats evolve over time