Tools
Free tools for founders
Interactive calculators that do the maths for your own numbers, show the formula, and give you a link you can share.
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First tools launching soon
We are choosing the first tools based on what founders actually search for and what existing calculators get wrong. Subscribe and hear when they go live.
How unboxth tools work
Your numbers, not ours
Every result comes from the inputs you type. No hidden assumptions about prices or fees.
Shareable links
Inputs are saved in the page address, so you can send a result to a co-founder or bookmark it.
Private by default
Calculations run in your browser. Nothing you enter is sent to a server.
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