Free tools

Small, useful tools we build and give away. They run in your browser, need no sign-up and store nothing about you.

Eyes

20-20-20 Rule Timer

Every 20 minutes, a chime reminds you to look 20 feet away for 20 seconds.

 Desk setup

Desk & Monitor Height Calculator

Enter your height and get the right desk, chair, standing desk and screen heights.

 Movement

Desk Stretch Routine Generator

Pick the time you have and where it aches; get a guided or printable routine.

 Money

Unit Price Calculator

Compare up to six products by price per ounce, gram, litre or item, multi-packs included.

 Money · Home

Rent Split Calculator

Split rent fairly by room size, perks or income, plus a rotating roommate chore chart.