Free · No sign-up · Runs in your browser
Free business tools that just work.
Two quiet, accurate tools for Indian businesses — a GST calculator and a UPI QR generator. No ads, no email, no tracking. Pick one below.
01 — Live tools
Pick a tool. Get the answer.
02 tools available
01 — Tool
GST Calculator
CGST · SGST · IGST
Calculate GST across every slab (5 / 12 / 18 / 28 %). Switch between add-GST (exclusive) and remove-GST (inclusive / reverse). Automatic CGST + SGST split for intra-state, IGST for inter-state.
- All slabs: 5%, 12%, 18%, 28%
- Add or remove GST (inclusive / exclusive)
- CGST + SGST + IGST auto-split
- Share via WhatsApp or copy
02 — Tool
UPI QR Generator
UPI · URL · WhatsApp · WiFi · vCard
Generate high-quality QR codes for UPI payments and everything else your business needs. Runs entirely in your browser — your data never leaves your device.
- UPI / URL / WhatsApp / WiFi / vCard / Email
- SVG + PNG download
- Custom colours and labels
- No sign-up, no ads, no tracking
02 — Why these tools
Quiet pages. Correct math. Zero strings attached.
Built the way developer tools should be built — small, exact, respectful of your time and your data.
01
No sign-up, no email harvesting
Open the page, use the tool, close the tab. There is no account to create, no email to enter, no nagging modal.
02
No ads, no tracking pixels
Most "free" online calculators load six to ten third-party ad networks. Ours load zero. The page is as quiet as a static document.
03
Runs in your browser
Your UPI ID, amounts and inputs never leave your device — there is nothing on our server to leak, sell or breach.
04
Built by a payments team
The same engineers who maintain the VyaparGateway UPI gateway maintain these tools, so UPI strings, GST formulas and edge cases are correct.
05
Mobile-first
Tested on phones first — large tap targets, copy-to-clipboard and WhatsApp share where it matters for Indian merchants.
06
Forever free
No "pro" tier, no paywall on common features, no "sign up to download." If it is here today, it stays free tomorrow.
03 — In the pipeline
More tools coming soon.
Need something specific to your business? Email [email protected] and we will consider building it.
03 — Next
Net Profit Margin Calculator
04 — Next
UPI Settlement Reconciler
05 — Next
Free Invoice Generator
04 — Need a real gateway?
If you accept payments online, the free tools are just the start.
VyaparGateway handles the full UPI lifecycle — dynamic QR generation, signed webhooks, direct-to-bank settlement — with 0% platform transaction fee on top of your plan.
7-day free trial · No credit card · No KYC to start