I&#x27;ve actually been using this approach for the past 12 years. There used to be an old firefox plugin called Password Composer (<a href="http:&#x2F;&#x2F;web.archive.org&#x2F;web&#x2F;*&#x2F;http:&#x2F;&#x2F;jlpoutre.home.xs4all.nl&#x2F;BoT&#x2F;Javascript&#x2F;PasswordComposer&#x2F;password_composer_form.html" rel="nofollow">http:&#x2F;&#x2F;web.archive.org&#x2F;web&#x2F;*&#x2F;http:&#x2F;&#x2F;jlpoutre.home.xs4all.nl&#x2F;...</a>) which would let you type in your master password into firefox, append the website domain, take a digest of the result and truncate to 8 characters before sending to the website. Over the years, I replaced this plugin with a simple 5-line script so I can reproduce my passwords from anywhere, strengthened the hash function from SHA-1 to bcrypt, and also added a configurable password length so I can gradually grow passwords over time as computers grow more powerful. Here&#x27;s my solution: <a href="http:&#x2F;&#x2F;akkartik.name&#x2F;pc" rel="nofollow">http:&#x2F;&#x2F;akkartik.name&#x2F;pc</a><p>Regarding other comments in this thread about managing exceptions to the scheme over time, I have a simple solution: I let my browser save my passwords. I think this is a reasonable trade-off; the dominant threat online today is not somebody gaining physical access to your devices, but random script kiddies brute-forcing passwords using stolen hashes.<p>Tl;dr - use my script to generate passwords, use your browser to remember passwords, and the complexity is quite manageable.<p><i>Edit</i> - sorry, I forgot that that 5-line script calls another 5-line script: <a href="http:&#x2F;&#x2F;akkartik.name&#x2F;bcrypt_digest" rel="nofollow">http:&#x2F;&#x2F;akkartik.name&#x2F;bcrypt_digest</a>.<p>One potential gotcha I realized recently is that it uses the bcrypt <i>encryption</i> scheme rather than the well-known digesting algorithm. The two share a common kernel, from what I can tell, though there are significant differences. There might by cryptographic implications to using an encryption scheme for digesting; I&#x27;m not an expert. Hopefully the fact that this is a bespoke arrangement being used by a tiny population will keep anyone from hacking me :)