SECURITY · FREE TOOL
Password generator
Generate a local random password without sending or saving it.
Your inputs
Enter your values, then calculate.
No password is generated until you press the button. Calculations stay on this device.
YOUR RESULT
Make the numbers clear.
Save calculation JSON ↓Calculation breakdown
Scroll sideways to see every column. You can also focus the table and use the arrow keys.
How this calculation works
Each character is sampled independently with browser cryptographic randomness and rejection sampling. No guaranteed inclusion of every character class. The full alphabet adds!@#$%^&*()-_=+ to letters/digits. Length 8–128. The entropy calculation assumes uniform generation and says nothing about reuse, phishing or device compromise. Password results are never included in a report export.
Check the assumptions
Use the stated units and conventions. This tool supports the workflow described here; it does not infer missing information or outside rules.