Support ToolGrit
ToolGrit is built and maintained by one person. There are no ads, and every calculator, guide, PDF and CSV export is free. That does not change.
What support buys is time. A coffee or a yearly amount pays for hours that go straight into new calculators and fixes to the ones already here. If ToolGrit saved you a trip or a callback, this is the most direct way to help.
What is free, and stays free
Nothing on this page unlocks anything. It is all open already.
Every calculator
All 384 live tools across 21 trade categories. No account, no sign-up, no trial. Each one runs in your browser and your numbers stay on your device.
PDF and CSV export
Free on every tool. Export your inputs and results, attach the PDF to a work order, or drop the CSV in a spreadsheet. The report carries ToolGrit branding, and that is the only advertising here.
Every guide
The field guides that sit alongside the tools are free to read, with no email wall in front of them. Check each tool's assumptions and limits before you rely on a result.
Three amounts
Pick whichever one fits. They all do the same thing: buy time for the project.
Buy a coffee. One payment, no account, nothing to enter anywhere afterwards. It goes straight into the work.
- ✓ Pays for time on new calculators
- ✓ Keeps the site ad-free
- ✓ One time, not a subscription
- ✓ Nothing to activate, everything is already free
Secure checkout via Stripe.
For people who reach for these tools most weeks. Same coffee, once a year, and it adds up to real hours.
- ✓ Steady support instead of a one-off
- ✓ Keeps the site ad-free
- ✓ Cancel any time, nothing stops working
- ✓ All 384 tools stay free either way
Secure checkout via Stripe.
For a shop, plant, or firm whose crew uses these tools on the clock. It is the amount that buys the most build time.
- ✓ Moves whole tools up the build list
- ✓ Nothing for your crew to install or log into
- ✓ Tell us which calculator you need next
- ✓ Receipt from Stripe for the books
Secure checkout via Stripe.
All 21 categories, all free
Every tool in every category is open. Nothing below is held back.
Questions
What supporting does and does not do.
No, and that is on purpose. There is no paid tier and no licence key. Every one of the 384 calculators, every guide, and PDF and CSV export on every tool are free whether you pay or not. What you are buying is time for the next tool.
Yes. PDF and CSV export works on every tool with no key, no account, and no limit on how many you run. The reports carry ToolGrit branding, which is how people find the site. That is the trade.
Standard PDF files that open in any reader. They carry your inputs, your results, and the relevant notes, laid out cleanly with ToolGrit branding. Save them, print them, or email them. CSV gives you the same numbers for a spreadsheet.
It stays on your device. Every calculation runs in your browser and the PDF is built there too. Your inputs never reach the server. Payments go through Stripe, so card details never touch this site either.
Any time, and nothing stops working when you do. Email [email protected] and it is cancelled. The refund policy is on the refunds page.
That helps too. Tell someone in your trade, or send a note through the contact page when a tool is wrong or a number looks off. Bug reports from people doing the work are worth a lot of coffees.
Thanks for reading this far
Either way, go use the tools. They are free, and they stay that way.