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Websums
Free finance & small-business calculators in your browser
Websums is a suite of 18 free personal-finance and small-business calculators that run entirely in your browser — no sign-up, no paywall. Mortgage (with UK stamp duty + US state property tax), salary, compound interest, FIRE, ROAS, burn rate, unit economics and more. Just clear answers, fast.
Hey Product Hunt 👋
I'm Jeremy, founder of EllaByte. I built Websums out of a small, recurring frustration: every time I needed a quick financial sum, I'd land on a calculator that was slow, buried under ads, or demanded a sign-up first.
So Websums is the opposite of that — 18 free calculators for personal finance and small business: mortgage, stamp duty, salary, compound interest, FIRE, ROAS, burn rate, unit economics and more. Everything runs client-side in your browser, there's no sign-up, and there's a built-in £/$/€ currency switch plus US state property-tax presets, so it works on both sides of the Atlantic.
It's completely free, and I'm actively adding to it. I'd genuinely love your feedback — and especially: which calculator should I build next?
Thanks for taking a look 🙏
About Websums on Product Hunt
“Free finance & small-business calculators in your browser”
Websums was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #77 on the daily leaderboard. Websums is a suite of 18 free personal-finance and small-business calculators that run entirely in your browser — no sign-up, no paywall. Mortgage (with UK stamp duty + US state property tax), salary, compound interest, FIRE, ROAS, burn rate, unit economics and more. Just clear answers, fast.
On the analytics side, Websums competes within Productivity, SaaS and Finance — topics that collectively have 704.8k followers on Product Hunt. The dashboard above tracks how Websums performed against the three products that launched closest to it on the same day.
Who hunted Websums?
Websums was hunted by Jeremy. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Websums including community comment highlights and product details, visit the product overview.
Jeremy