Quote Calculator
A private quote-and-estimate builder in one HTML file on your machine: line items, taxes, totals, and nothing sent anywhere.
This is not a screenshot. It's the real tool, running right here: go on, put something in it.
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 quote is a small wager between hope and experience. The Quote Calculator makes you write the wager down: for each project, an optimistic figure, a realistic one, a pessimistic one, and a buffer percentage — because the number you'd rather not think about is usually the one that saves you.
What it keeps
- Projectshort text
- Optimisticnumber
- Realisticnumber
- Pessimisticnumber
- Buffer %number
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.
In ten years
Whatever you put in (Project, Optimistic, Realistic and Pessimistic) stays inside the file itself. There is no account to lapse, no plan to be sunset, no migration e-mail with a deadline in it. A decade of quote calculator entries is a decade of your own handwriting, kept in a document you can back up like any other.
If Offline.Ltd closes tomorrow, nothing on your machine notices. That isn't a marketing promise; it's simply what a file is.
Getting your data out
Export to CSV from inside the tool and open it in anything: a spreadsheet, another app, a text editor. Or keep the HTML file: it is plain, readable, and inspectable; you can open it in a text editor and see your own rows sitting there. No export queue, no "we'll e-mail you a link within 48 hours", no format that only one vendor can read.
Copy the file to a USB stick, a NAS, a folder your devices already sync. It runs on Windows, macOS, Linux, Android and iOS, online or off, because a browser is the only thing it ever needed.
Questions people ask
How do I estimate a freelance project quote?
Three-point estimating: you record your optimistic, realistic and pessimistic figures side by side, plus a buffer percentage for the surprises. Seeing all three on one line makes it much harder to quote the fantasy number.
Are my client quotes and pricing kept private?
Completely — the tool is one HTML file running offline in your browser. No account, no cloud, nothing leaves the page. Your pricing stays between you and your keyboard.
Why keep old quotes after the project is done?
Because the list becomes your track record: which estimate came true, project after project. Most freelancers discover their pessimistic column was the realist all along, and quote better for knowing it.
Go deeper on Quote Calculator
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Fits your knife at weight 1. 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.