14 free tools, all running entirely in your browser.
Create a GST-compliant invoice with CGST/SGST or IGST calculated automatically.
Create a clean price quotation or estimate for a customer, ready to print.
Generate a simple payment receipt with the amount spelled out in words.
Check a GSTIN’s structure and checksum, and see which state it belongs to.
The current GST slab structure in India, effective 22 September 2025.
Estimate TDS deduction for common payment types — contractor, professional fees, rent, and more.
Calculate a discounted price, or a markup on cost, either direction.
Find the sales volume where your revenue exactly covers your costs.
Work out selling price from cost and margin, or margin from cost and price.
Create a simple monthly salary slip (payslip) with editable earnings and deductions.
Get quick business name ideas from a keyword — a starting point, not a final answer.
Calculate exact age in years, months, and days from a birth date.
Calculate a percentage of a number, a percentage change, or what percent one number is of another.
Check a PAN’s structure and see what its 4th character reveals about the holder type.
Browse all 152 tools, or use the search box on the homepage to find a specific one.