Bcrypt Hash Generator & Verifier — Free Online Password Hashing Tool

Bcrypt Hash Generator & Verifier — Free Online Password Hashing Tool. Free online bcrypt hash generator and verifier. Securely hash passwords with configurable salt rounds and verify plaintext against hashes — 100% offline, private.

Generate and verify bcrypt password hashes instantly with our free online bcrypt hash generator . Enter any plaintext password, choose your salt rounds (cost factor), and get a secure bcrypt hash computed entirely in your browser.

Use the built-in compare tool to verify whether a plaintext string matches an existing bcrypt hash — perfect for testing authentication logic, auditing stored credentials, and validating your backend's password verification.

All hashing and comparison uses the Blowfish cipher (bcrypt algorithm), the industry standard for secure password storage. Your passwords never leave your device. Why use bcrypt for password hashing?

Unlike MD5 or SHA-1, bcrypt is intentionally slow — its configurable salt rounds (work factor) make brute-force and rainbow-table attacks computationally expensive. Each hash includes a random salt, so identical passwords produce different hashes.

This is why bcrypt is the recommended algorithm in Node.js ( bcryptjs ), Python ( bcrypt ), PHP ( password_hash ), and Ruby on Rails. Use our bcrypt checker to confirm your app's login flow works before deploying.

Related tools: Hash Text (MD5, SHA-256, SHA-512) and RSA Key Generator .

Frequently asked questions

How do I generate a bcrypt hash?

Type the password or text into Your string in the Hash card. A bcrypt hash is computed in the background shortly after you stop typing, using the Salt count you set (10 by default), and shown below; click Copy hash to copy it. A new random salt is used every time, so the same input gives a different hash after each change.

How do I check if a password matches a bcrypt hash?

In Compare string with hash, enter the plain text in Your string and paste the stored hash in Your hash. Do they match shows Yes when the text produces that hash and No otherwise, including when the hash is not a valid 60-character bcrypt hash. Hashes with the 2a, 2b and 2y version prefixes are supported.

What salt count or cost factor should I use?

The salt count is a base-2 work factor: each step up doubles the hashing time. Values of 10 to 12 are common for web apps. The field accepts 4 to 31, the range bcrypt supports. From 15 on, hashing in a browser takes seconds or much longer; it runs in the background with a Hashing indicator, so the page stays usable.

Why does the same password give a different bcrypt hash each time?

bcrypt stores a random 22-character salt inside each hash, next to the version and cost. Because the salt changes, every hash is different, yet the compare check still works because the salt is read back from the stored hash.

Is it safe to hash real passwords here?

Hashing and comparing run in your browser with the bcryptjs library, so the text you enter is not sent to a server. Note that bcrypt only uses the first 72 bytes of the input, so longer passwords are truncated.

How to use this online tool

Bcrypt Hash Generator & Verifier — Free Online Password Hashing Tool is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

Bcrypt Hash Generator & Verifier — Free Online Password Hashing Tool keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it.

When this tool is useful

Use Bcrypt Hash Generator & Verifier — Free Online Password Hashing Tool for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.