Optional, always

The tip jar

The free tools, templates, guides and essays on this site stay free for everyone, with no ads and no accounts. If something here helped and you would like to say thanks, the band would be glad of a tip.

Any amount you like. Tipping is optional and changes nothing about any tool.

Paid securely through Stripe. Your receipt will say Known Quantity LLC.

Tipping happens on the website. Open knownquantityllc.com/tip in your browser.

What a tip does

Everything here stays free

The free tools stay free whether or not anyone tips. Nothing is locked, and a tip unlocks nothing.

No ads and no accounts

We do not show ads, sell data or ask anyone to sign up. Tips help keep it that way.

Hosting and checking the facts

Tips pay for hosting and for the time it takes to check every fact and source before a guide goes up.

A tip is a gift to the company, not a charitable donation and not tax deductible.