27 free tools · Made for Indian businesses
Business calculators that save you time
GST, EMI, invoices, salary breakup, UTM links, and more — instant, accurate, and free on zyptos.info.
27+
Free tools
4
Categories
100%
Free forever
Browse by category
Pick a category and find the right tool in seconds.
GST Tools
Calculate GST, reverse GST, and tax-inclusive pricing for Indian businesses.
3 tools
Loan Tools
EMI, SIP, business loans, and interest comparison calculators.
6 tools
Business Tools
Invoices, quotations, salary breakup, HRA, gratuity, and more.
11 tools
Marketing Tools
UTM builder, WhatsApp links, QR codes, and ad performance metrics.
7 tools
Most used tools
Trusted by freelancers, shop owners, and startups across India.
GST Calculator
Calculate CGST, SGST, and IGST on any amount.
EMI Calculator
Calculate monthly EMI for any loan amount and tenure.
Invoice Generator
Create professional invoices and download as PDF-ready print.
UTM Builder
Build campaign URLs with UTM tracking parameters.
SIP Calculator
Project returns on systematic investment plans.
Profit Margin Calculator
Calculate gross and net profit margins.
Why use Zyptos?
Instant results
No loading screens. Calculations update as you type.
Private & secure
All calculations run in your browser. We don't store your data.
Mobile friendly
Works perfectly on phone, tablet, and desktop.
India-focused
GST slabs, HRA rules, and formats built for Indian businesses.
Frequently asked questions
Are Zyptos tools free to use?
Yes, all calculators and generators on zyptos.info are completely free. No signup or payment required.
Which GST rates are supported?
Our GST calculators support all standard Indian GST slabs: 0%, 5%, 12%, 18%, and 28%.
Can I generate GST invoices?
Yes. Use our GST Invoice Generator to create tax invoices with CGST/SGST breakdown and print or save as PDF.
Are the loan EMI calculations accurate?
EMI calculations use standard reducing-balance formulas. Results are estimates — confirm final numbers with your lender.
Ready to simplify your business?
Join thousands of Indian entrepreneurs using zyptos.info every day.
Explore business tools