bcrypt vs SHA-256
bcrypt and SHA-256 are both hashing — but they serve completely different purposes. Using SHA-256 for passwords is a security mistake.
bcrypt
Password hashing function designed to be deliberately slow to resist brute-force attacks.
Visit bcryptFeature Comparison
| Feature | bcrypt | SHA-256 |
|---|---|---|
| Designed for passwords | Yes — intentionally slow | No — designed for speed |
| Salt built in | Yes — random salt each time | No — same input = same output |
| Brute-force resistance | High — cost factor adjustable | Low — GPUs can hash billions/sec |
| Reversible | No | No |
| Use for file checksums | No — too slow | Yes — standard |
Verdict
Use bcrypt (or Argon2) for storing passwords. Use SHA-256 for file checksums and digital signatures. Never use SHA-256 to hash passwords. Generate a bcrypt hash free online.
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Try it freeFrequently Asked Questions
What is the difference between bcrypt and SHA-256?
bcrypt and SHA-256 are both hashing — but they serve completely different purposes. Using SHA-256 for passwords is a security mistake. On the points that matter most: Designed for passwords — bcrypt: Yes — intentionally slow; SHA-256: No — designed for speed. Salt built in — bcrypt: Yes — random salt each time; SHA-256: No — same input = same output. Brute-force resistance — bcrypt: High — cost factor adjustable; SHA-256: Low — GPUs can hash billions/sec.
Is bcrypt better than SHA-256?
Use bcrypt (or Argon2) for storing passwords. Use SHA-256 for file checksums and digital signatures. Never use SHA-256 to hash passwords. Generate a bcrypt hash free online. If you mainly need the core feature without a subscription or signup, Free Bcrypt Generator is a free alternative to both.
Is there a free alternative to both bcrypt and SHA-256?
Yes — our Free Bcrypt Generator is completely free with no account required.