Generate Hash
Create a secure bcrypt hash from your password with customizable security rounds. Higher rounds provide better security but take longer to compute.
Verify Hash
Check if a password matches a bcrypt hash. This is useful for testing password verification or validating existing hashes.
Description
About the Tool
Bcrypt Hash Generator & Verifier is a free, browser-first bcrypt generator that lets you create, encode, and verify secure passwords in seconds— no server calls, no logs, no waiting. Use it as a lightning-fast random password generator, a one-click bcrypt hash generator, or a quick way to confirm an existing hash—all while keeping every byte local to your device for maximum privacy.
Why Choose Bcrypt Hashing?
- Adaptive Protection — Bcrypt automatically slows down as hardware improves, making brute-force attacks expensive and helping future-proof your data.
- Salting for Safety — Every bcrypt hash includes a random 128-bit salt, defeating rainbow-table attacks.
- Battle-Tested Algorithm — Trusted in frameworks like Laravel, Django, and Spring Security, bcrypt balances security with performance and has stood strong for decades.
Key Features
| Feature | What It Does | Keywords Covered |
|---|---|---|
| Instant Hashing | Generate a fresh bcrypt hash online with one click. | bcrypt online, bcrypt hash generator |
| One-Click Verification | Paste a plaintext password and its hash; we confirm the match instantly. | verify bcrypt hash, bcrypt password |
| Adjustable Work Factor | Pick rounds (cost) from 4–15 to tune security vs. speed. See how to choose the right cost factor for bcrypt. | bcrypt hashing |
| Random & Strong Password Generator | Create high-entropy keys on demand. | random password generator, strong password generator |
| 100 % Client-Side | All processing happens in JavaScript; nothing ever touches our servers. | bcrypt encoder, hash password generator |
How to Generate a Bcrypt Hash Online
- Enter Your Password — Type or paste the plaintext you want to protect.
- Choose Rounds (Cost) — Default is 12, but you can raise or lower the cost to suit your policy.
- Click “Generate” — The bcrypt hash generator runs instantly in your browser.
- Copy & Store Safely — Save the 60-character hash in your database; discard the plaintext.
Tip: Need a brand-new password? Hit “Random Password” for a one-tap strong password generator.
Verifying “Decrypting” Bcrypt Hashes
Decrypt bcrypt isn’t possible—the algorithm is intentionally one-way. Instead, verify whether a plaintext input matches an existing hash:
- Paste the stored bcrypt hash into the verifier field.
- Enter the plaintext password to test.
- Click Verify; get an instant success ✅ or failure ❌.
For legacy audits, a timed “test-crack” routine iterates through word-list guesses locally—useful for spotting weak credentials without true bcrypt decrypt.
Security First: 100 % Client-Side
- Zero Uploads — Your credentials never leave the browser tab.
- Open Source — Built on the well-maintained
bcryptjslibrary. - Offline Friendly — Once cached, the page works even without an internet connection.
Frequently Asked Questions
1. What is Bcrypt?
Bcrypt is a secure way to turn a password into a special code called a hash. It helps keep passwords safe by making them hard to guess or reverse. It’s used by many websites and apps to protect user accounts.
2. What does this Bcrypt Generator do?
This bcrypt hash generator lets you create secure hashes from any password or text. Just type something in, and the tool gives you a bcrypt hash that you can store safely.
3. Is this Bcrypt Generator online and safe?
Yes! This is a bcrypt online tool that runs 100% in your browser. Nothing you type is sent to a server, so your data stays private and secure.
4. Can I decrypt Bcrypt hashes?
No. Bcrypt decrypt is not possible because bcrypt hashing is one-way. You can't turn a bcrypt hash back into the original password.
5. What is the cost or rounds in Bcrypt hashing?
The cost (or number of rounds) controls how long the bcrypt hash generator takes to create the hash. More rounds mean better security, but it takes a bit longer. We recommend using at least 12 rounds.
6. Can I use this Bcrypt Generator in production?
This bcrypt encoder is for testing, learning, or quick use. For real applications, use a trusted bcrypt password generator library in your backend (like Node.js, PHP, or Python).
7. What should I enter in the input box?
Type in any password or text you want to hash. The hash password generator will instantly create a bcrypt password hash that you can copy and store.
8. What if I want to check if a password matches a hash?
You’ll need to use code in your backend to do that. This bcrypt generator only creates hashes — it doesn’t compare them.
9. Why use Bcrypt instead of MD5 or SHA1?
Bcrypt is more secure. It slows down brute-force attacks and includes a random salt to protect against hackers. That’s why a bcrypt password is safer than MD5 or SHA1 hashes.
10. Can I use this tool to decrypt Bcrypt online?
No. Decrypt bcrypt online isn’t possible. Bcrypt is designed to never be reversed. You can only check a password by comparing it with the hash in your app.
11. Is there a random password generator included?
Yes! You can use the random password generator feature to quickly create strong, secure passwords. It pairs well with the bcrypt password generator so you can hash your new password right away.
12. Who should use this Bcrypt Hash Generator?
Anyone who needs to quickly create a bcrypt password hash — developers, security learners, or anyone testing login systems — will find this bcrypt encoder tool useful and easy to use.
13. Is bcrypt still secure in 2025?
Yes. With a sensible cost factor (≥12 rounds) and unique salts, bcrypt hashing remains a gold-standard choice for password storage.
14. How many rounds should I use?
Most systems choose 10–14. Higher rounds mean stronger protection but slower logins. Test performance with our slider and review best-practice guidance.
15. Can I decrypt bcrypt online?
No—decrypt bcrypt is impossible by design. Always verify matches instead of reversing hashes.
16. Do you store any data?
Never. All hashing, verification, and random password generator routines run entirely in your browser’s memory.
17. Can I use this for production?
Absolutely. Copy the generated bcrypt hash into your database, or fork our code and embed it directly into your stack.
Resources, Articles and Tutorials
Bcrypt Specifications PDF
Bcrypt Specifications PDF on GitHubBcrypt Source Code
Reference C Implementation of BcryptSecure Password Hashing in 2019
Password Hashing: Scrypt, Bcrypt and ARGON2Important Notes:
- Note #1: We do not store any passwords, never.
- Note #2: Always choose a strong password, containing special characters, lowercase and uppercase letters and numbers.
- Note #3: Always use trusted libraries for creating password hashes.
- Note #4: Stop using weak hashing algorithms such as md5, sha1, sha256, etc.