Free business tools

Calculators and converters for GST, invoices, profit and cash flow.

Use InvoiceWala's public tools to price work, check GST, structure invoice data and export results. When the calculation becomes real business, save it into InvoiceWala and keep the workflow moving.

Open GST calculatorSave results in InvoiceWala

Tool-to-invoice workflow

Useful public tools, connected to the Finance OS.

No login needed
1

Calculate GST or profit before quoting

2

Convert the result into an invoice draft

3

Send a branded PDF with payment links

4

Track payments, reminders and reports inside InvoiceWala

Popular tools

Start with the number you need right now.

Every tool is designed to lead into a real InvoiceWala workflow: invoice creation, branded PDF export, AI bookkeeping, reminders, reports and payment tracking.

GSTOpen

GST calculator India

Calculate exclusive or inclusive GST with CGST, SGST and IGST split.

Best for tax invoices

FinanceOpen

Profit calculator

See profit, profit margin and markup before sending a quote or invoice.

Best for pricing work

FinanceOpen

Margin calculator

Convert cost and selling price into clean margin and markup numbers.

Best for agencies and shops

SalesOpen

Discount calculator

Calculate discount amount, final sale price and total savings from original price and discount percentage.

Best for retail pricing

InvoiceOpen

Invoice number generator

Generate professional invoice numbering formats for FY, monthly and GST workflows.

Best for new businesses

AIOpen

PDF to invoice extractor

Paste invoice text or upload supported files to structure bill data faster.

Best for bookkeeping

ExportOpen

Invoice to Excel converter

Turn invoice line items into spreadsheet-ready CSV for accounting reviews.

Best for reports

DocumentsOpen

Purchase order generator

Create supplier purchase orders with PO number, item rows, GST fields and PDF download.

Best for procurement

DocumentsOpen

Receipt generator

Create payment receipts with receipt number, customer details, payment mode and PDF download.

Best after payment

FinanceOpen

EMI calculator

Calculate loan EMI, interest and repayment totals for business purchases.

Best for cash flow

TaxOpen

Tax calculator

Calculate custom tax amounts for service bills, purchase orders and estimates.

Best for quick checks

Free to paid funnel

Make the free result too useful to abandon.

Shareable outputs

Copy a calculation link or export the result for a client conversation.

Invoice conversion

Move GST, profit or item data into an invoice instead of retyping it.

SEO landing intent

Each tool answers a search query and then offers the next business step.

InvoiceWala upgrade path

Save history, remove branding, automate reminders and build reports.

Tool hubs

Choose the right workflow before creating a document.

These internal hubs help users and search engines understand how InvoiceWala tools connect: calculation, document creation, PDF download and payment tracking.

Recommended paths

Turn free tool traffic into invoice workflows.

Create invoices onlineBest starting point for users who came from calculators and now need a customer-ready PDF invoice.Create GST invoicesUse this path when GSTIN, taxable value and CGST/SGST/IGST fields matter.See invoice formatsUseful for users comparing PDF, Word, Excel and GST-ready invoice template structures.Send a quotation firstBest for contractors, agencies and service providers who need approval before invoicing.Create a receiptUse after payment is received and the customer needs payment proof.Create purchase ordersUseful for supplier purchases, procurement and vendor communication.

FAQ

Are these tools free?

Yes. The calculators and converters are public. Saving invoices, reports and history requires an InvoiceWala account.

Is the GST calculator built for India?

Yes. It supports common GST rates, inclusive and exclusive GST, and CGST/SGST or IGST splits.

Can I turn a result into an invoice?

Yes. High-intent tools include InvoiceWala CTAs so you can move from calculation to invoice, PDF, reminders and reporting.