Business & Freelance — Free Online Tools

Invoices, quotes, rates and billing utilities for freelancers and SMBs.

10 free tools — all running privately in your browser

E-Way Bill Validator

Validate e-way bill number format or JSON snippet — 12-digit rules and mandatory field checklist, no GSTN API.

Calculate GSTR-1, GSTR-3B or GSTR-9 late filing fee and interest — nil vs regular return, updateable rules.

Create GST proforma invoice PDF — seller/buyer GSTIN, HSN line items, INR/USD, IGST or CGST/SGST split.

Calculate employee and employer PF (12%) and ESI contributions — wage ceiling ₹15,000 / ₹21,000.

Payment of Bonus Act calculator — 8.33% to 20% on eligible salary, ₹21,000 wage ceiling.

Estimate leave encashment amount from basic + DA and unused leave days — HR exit/settlement helper.

In-hand salary from gross — deduct PF, ESI, professional tax and TDS to get net pay.

Search common HSN codes with GST and BCD rates — import-export and GST invoice helper.

Freelance hourly rate from target income — billable hours, expenses and profit margin.

Build freelancer project quotes — line items, hours, rates, expenses and margin → total proposal.