Calculator
What the BCrypt Generator does
BCrypt Generator: generates Status, BCrypt hash and Salt from Password and Cost (rounds).
Point it at Password and Cost (rounds) and it returns Status, BCrypt hash and Salt. Enter what you need and trigger it when you are ready.
Most of these tasks are one-liners in a terminal, but not when you are away from one. The BCrypt Generator exists to take that particular chore off your hands.
This runs client-side, which means we never receive what you enter and could not retrieve it if asked.
The sections that follow cover the fields, the method, and one full example computed from the defaults.
What do the BCrypt Generator fields mean?
The BCrypt Generator uses 2 inputs. Starting values are already in place, which saves the usual blank-form hesitation about what a field wants.
| Field | What to enter | Default |
|---|---|---|
| Password | required | Secret123! |
| Cost (rounds) | choose from 8 (fast), 10 (default) or 12 (stronger) | 10 (default) |
How does the BCrypt Generator work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same generated output.
Values are checked first: an out-of-range or non-numeric entry names the offending field instead of returning nonsense.
What a typical run looks like
You provide: Password and Cost (rounds)
What happens: the file is read into memory by your browser, processed locally, and offered back as a download. It is never uploaded.
You get back: a processed file plus a short status summary in the tool panel.
The tab does the processing, so speed tracks your hardware and very large files fail on memory rather than on a quota.
Read next: How Hashing Works: MD5, SHA-1, SHA-256 and Why Two Are Broken
How to use it
- Enter Password.
- Pick a value for Cost (rounds): the options are 8 (fast), 10 (default) or 12 (stronger).
- Press Generate Hash.
- You get Status, BCrypt hash and Salt back.
- The link encodes your inputs, so saving it is enough to reproduce the result later.
What this tool does not do
- Output follows the common convention for this format; a specific toolchain may have its own house style.
- Processing happens in your browser, so extremely large inputs are bounded by available memory.
- It does not account for anything you did not enter, by definition.
Frequently asked questions
You need Password and Cost (rounds). Defaults are loaded for all of them, which means a single edit is enough to get a meaningful answer.
No. The parsing happens in your browser, so sensitive payloads never leave your machine.
Free, and there is no upsell. The whole tool is the free version.
The generated output is exact for the method described above. Where a value is rounded for display, the underlying figure keeps full precision.