Play · Prove trust
Turn off your internet. We'll wait.
Every “free tool” site says your files are safe. We built ours so the claim is testable: the tools below run entirely on your device. Flip on airplane mode and watch them keep working.
You're online — the easy mode
🧾 GST calculator — works offline, obviously
Taxable value₹1,00,000
CGST 9%₹9,000
SGST 9%₹9,000
(or IGST 18% interstate)₹18,000
Invoice total₹1,18,000
✍️ Amount in words — cheque-ready, lakh/crore
twelve lakh fifty thousand rupees only
Cheque-ready · Indian numbering₹12,50,000
Why this matters: regulators have warned that fake “free converter” sites install malware and harvest what you upload. Our answer is architectural — 269 of our 287 tools have no upload path at all. No ads, no fingerprinting, no accounts. The airplane test is the proof no ad-funded tool site can pass.