This tool is a completely local password generator that doesn't store any information. You can save this file on your computer, in case this website ever disappears.

1. Come up with a Master Key, some strong unpredictable password. You'll reuse this for all your passwords. Do not store it anywhere, just memorize it.
2. Come up with a Password Name specific to the password you're generating. For example, if generating a password for your gmail account, call it "gmail". You can store this publicly: write it down, put it in a Google Sheet, whatever. It's completely safe.
3. Press Long to get a strong 26-character password. It's automatically put in your clipboard, so you can go paste it immediately.
4. If the website is badly designed and doesn't support 26 characters, press Short for a 12-character password.
5. If the website is really badly designed and has additional requirements, press More Options, choose what you need, then click Generate Custom.

When typing your Master Key, a small "checksum" phrase will appear above the text field. This random-looking phrase will always be the same if your Master Key is the same, so you can be sure you typed the Master Key correctly if the phrase matches.