7 free tools every Indian small business should bookmark
Running a small business in India means doing a hundred small calculations and tasks a week — GST on a bill, an EMI you're weighing, an invoice to raise, a QR code for the counter. You don't need paid apps for any of it. Here are seven free web tools that quietly save hours, all built for Indian users, all free with no sign-up.
1. GST calculator
Add GST to a price, or work backwards from an MRP to find the base — with the CGST/SGST split done for you, at current 2026 rates. Essential for anyone raising bills. → GST calculator
2. Invoice generator
Make a clean, GST-ready invoice with your details, line items and the right tax split, then download it as a PDF — no account, nothing uploaded. → Invoice generator
3. EMI calculator
Weighing a business or personal loan? See the EMI, the total interest, and the true end-to-end cost across different tenures before you commit. → EMI calculator
4. Income tax calculator
Work out your tax for FY 2026-27 under both the new and old regimes, and see which one actually saves you more. → Income tax calculator
5. QR code generator
Free QR codes for a UPI payment, your WiFi, a link or your visiting card — no watermark, no expiry. Print it once and it works forever. → QR code generator
6. Loan eligibility calculator
Before you apply, get a realistic estimate of how much loan you'd qualify for based on your income and existing EMIs. → Loan eligibility calculator
7. Image compressor
Shrink a photo to fit an upload limit — job portals, KYC forms, a lighter website — right in your browser, so the image never leaves your device. → Image compressor
These are just seven of 20 free tools at wiserfool.in — calculators for SIP, FD, RD and PPF, a word counter, unit converter, password generator and more. All free, all private, all built for India.
Bookmark the ones you'd use weekly. The best business tool is the one that turns a ten-minute chore into ten seconds — and none of these cost a rupee.