allcaltools is a free calculator library built around one gap most calculator sites ignore: number formats. Every finance calculator defaults to โน with Lakh/Crore grouping for Indian users, or $ with Thousand/Million grouping for everyone else โ one tap to switch, and it's remembered. What's inside: ๐ฐ Finance,๐ Education๐๏ธ Construction QR code generator, UPI QR generator, Image-to-WebP converter Everything runs client-side No account, no email wall, no ads interrupting the calculator.
Hey Product Hunt ๐
I built allcaltools because I kept bouncing between five different
calculator sites depending on what I needed โ one for EMI, one for BMI,
one for GPA โ and none of them handled Indian number formatting
(โน Lakh/Crore) properly, since most are built for a US/Global audience.
So I built one place with all of them, and a Indian โ Global number
format toggle that's remembered across every calculator on the site.
A few I'm most proud of:
- No-Cost EMI Calculator โ shows what a "0% EMI" offer actually costs you
once GST-on-interest is factored in
- Gold Price Calculator โ India (making charges + GST) and Global
(troy ounce) versions
- Everything runs in your browser โ no sign-up, nothing uploaded
Still solo-building this, so genuinely want to know: what calculator do
you reach for that you wish existed here? I'll build it.