Free tools for contractors
GST calculator, GST rate finder, paint and tile calculators, and free quotation and GST invoice generators. Free, no sign-up, works on your phone.
GST calculator
Add or remove GST, with the CGST/SGST or IGST split.
OpenGST rate finder
Current GST rate and HSN/SAC code for building materials and contractor services.
OpenPaint calculator
Litres of paint and cost for a room, from its size.
OpenTile calculator
Tiles and boxes needed for a floor, with wastage.
OpenFree quotation generator
Make a professional quotation and download it as PDF — for any business.
OpenFree GST invoice generator
Make a GST invoice with CGST/SGST or IGST and download the PDF.
OpenMake this in KaryaPilot — free
Your logo, automatic numbering, WhatsApp sharing and payment tracking.