Founder’s Engine
Founder’s Engine, a multi-tab Blade that lives in one HTML file on your machine. No account, no cloud, no server to talk to.
This is not a screenshot. It's the real Blade, running right here: go on, put something in it. Its tabs feed each other; try one, then look at the next.
Forged into a knife, this tool ages with use: the blades you reach for wear soft, entries you tend keep their bloom, and the years travel with the file through every reforge.
Every founder does the same math on the back of an envelope at two in the morning: how much comes in, what we're trying next, and how long the money lasts. Founder's Engine puts that math in one place — revenue streams feed into experiments, and both feed your runway. Change a number upstream and watch the horizon move.
Standing facts
- One HTML file. Opens in any modern browser, on any operating system.
- No account. No login, no sign-up, no e-mail wall.
- No cloud. Nothing leaves your browser: no server, no telemetry, no analytics.
- Yours forever. The file keeps working whether or not Offline.Ltd does.
- Ages with use. Entries you tend keep their bloom; the years travel with the file through every reforge.
Questions people ask
How does Founder's Engine calculate runway?
Your revenue streams and the experiments you're running feed into one runway figure. Adjust a stream and the runway math updates, so you can see the horizon move before you commit to anything.
Is Founder's Engine useful before I have real revenue?
Yes — arguably most useful then. You can sketch streams that don't exist yet, attach experiments to them, and see honestly how long the current money holds while you find out.
Do I need an account or a subscription to use Founder's Engine?
No. It's a single HTML file that runs offline in your browser. Your financials never leave the page, there's nothing to sign up for, and the file is yours for good. There's a live demo on this page — go on, try it, it's the real thing.
Go deeper on Founder’s Engine
More Blades
Fits your knife at weight 4. Nothing here is final, Knife follows Life. Reforging within your tier is free, forever. Add it, drop it, reforge it later; the file stays yours either way.