01
Enter your password or text
Type or paste the password you want to hash into the input field. It stays in your browser and is never sent anywhere.
Bcrypt Hash Generator Online
Generate secure cryptographic Bcrypt password hashes or verify password matches. Adjust round cost factors and perform check validations safely in your browser.
Developer Cryptography
Bcrypt Hash Generator & Verifier
4 (Fastest)10 (Default)12 (Secure)14 (Very Slow)
100% Secure & Private
Processed locally in your browser. No data is sent to our servers.
How to use
Use this bcrypt salt generator in three simple steps
Our workflow is designed to be straightforward, allowing you to complete your task in seconds.
02
Set the cost factor
Pick a work factor between 4 and 14 rounds to balance security against speed, then generate the salted Bcrypt hash.
03
Copy or verify the hash
Copy the generated hash for your app, or paste an existing hash to check whether a password matches it.
Work Factors
Adjust rounds to control the computational hashing difficulty.
Hash Verification
Compare a plaintext string against an existing hash securely.
Built-in Salting
Automatically generates random salts for industry-standard output.
Local Encryption
WASM-powered hashing keeps sensitive passwords in the browser.
Use cases
Useful for different workflows
Hash Creation
Generate secure, slow-hashing passwords using custom cost factors.
Verify Hashes
Match plain text inputs against stored Bcrypt structures.
Backend Integrations
Check testing credentials match password verification schemas.
Tool guide
What is Bcrypt?
Bcrypt is a password-hashing function designed by Niels Provos and David Mazières. It is based on the Blowfish cipher and was presented at USENIX in 1999. It incorporates a work factor (cost rounds) and automatically handles random salting, making it exceptionally robust against offline cracking.
Why Bcrypt is Safer Than MD5 & SHA
Common hash functions like MD5 and SHA-256 are designed to be extremely fast. While great for file verification, they are vulnerable to password cracking. Hackers can check billions of SHA-256 hashes per second using GPUs. Bcrypt is deliberately slow and memory-intensive, slowing down brute-force attacks to a crawl.
Understanding the Cost Factor / Rounds
Bcrypt's work factor determines how many times the key expansion algorithm runs. Every increment in the rounds doubles the execution time. This "key stretching" is future-proof: as hardware gets faster, developers can simply increase the cost factor rounds to keep cracking attempts impossibly slow.
FAQ
Frequently asked questions
How does the Bcrypt verifier work?
The verifier extracts the salt and cost factor embedded within your existing Bcrypt hash. It then hashes your plaintext password using those identical variables. If the resulting signatures match, the verification is successful.
Is this tool safe for real passwords?
Our Bcrypt generator runs entirely client-side using JavaScript. Your passwords never cross the network. However, as a best developer practice, never enter active production credentials into any online tool.
Why does generating higher rounds take longer?
Bcrypt utilizes key stretching. Higher round values double the workload exponentially (e.g. 11 rounds is twice as slow as 10). This prevents GPU brute-forcing by making iterations computationally expensive.
Are my passwords sent to your servers?
No. Hashing and verification run entirely in your browser, so the passwords and hashes you type are never uploaded, logged, or stored.
What cost factor should I use in production?
A cost of 10 to 12 is a common baseline for web apps. Higher values add security but increase login time, so test what your servers can handle.
From our blog
Hash and Verify Passwords with Bcrypt
Read the full guide behind the Bcrypt Hash Generator Online and get the most out of it.
Related tools
Keep exploring Toolzenpro
JSON Formatter Online
Format, beautify, and validate JSON data instantly. Supports minification and custom spacing.
Open ToolBase64 Decoder Online
Decode base64 encoded strings back to readable UTF-8 text, or encode plain text to base64.
Open ToolMD5 Hash Generator
Generate standard 128-bit MD5 hashes from any text input dynamically and securely in your browser.
Open ToolURL Encoder Decoder Online
Encode text strings into URL-friendly format, or decode percent-encoded URLs back to plain text.
Open ToolRegex Tester Online
Test your regular expressions in real-time. View matched strings, highlight groups, and test expression validity.
Open ToolHTML to Markdown Converter
Convert HTML markup into clean and readable Markdown syntax instantly. Drag & drop or paste tags.
Open Tool