Free GST Calculator, Invoice Generator, Email Writer & more — built for Indian freelancers & small businesses. No login. No fees. Forever.
Calculate GST, create invoices, plan taxes and manage client work — all with free tools built for Indian freelancers.
Add or remove GST instantly for Indian freelance invoices.
Generate GST invoices online without login or watermark.
Use tax and advance tax calculators made for Indian freelancers.
Use GST, invoice, tax and rate tools to manage freelance work faster.
Simple GST, tax, invoice, and business tools for common freelance workflows in India.
— FREE TOOLS —
Click any tool — no login, no signup, no cost. Ever.
Live GST calculation for all slabs — 5%, 12%, 18%, 28%. CGST, SGST & IGST with custom rates and presets.
Professional GST invoices with PDF download. GSTIN validation, HSN/SAC codes, logo upload, signature area.
Choose the right income tax calculator: Section 44ADA, Normal Regime, or Advance Tax.
Calculate late filing fees (₹50/day) and 18% interest on delayed GST payments instantly.
Compare your current salary to freelance rates. Find exactly what you need to charge to maintain your lifestyle.
Calculate your Mutual Fund returns and see the true power of compounding over 10 or 20 years.
Calculate your perfect freelance hourly, daily & monthly rate in INR based on your expenses.
Estimate your true take-home pay in INR. Calculate platform fees, GST reverse charge, 194O TDS, and FX markup loss.
Calculate your early retirement number (Lean, Regular, Fat) with inflation & nominal compounding.
— WHY KAROTOOLS —
No account, no email, no password. Just open any tool and use it instantly. Your privacy is our priority.
KaroTools offers free educational calculators and business tools. Some features, pages, or policies may change as the product evolves.
GST slabs, INR formatting, CGST/SGST/IGST — every tool is designed around Indian tax laws and business norms.
No loading spinners for basic tools. Results appear live as you type. Engineered for speed.
Fully responsive on phone, tablet and laptop. Use KaroTools from anywhere, anytime.
Your tool inputs and invoice data are processed locally. We use basic analytics, but your raw financial numbers remain private.
— MOST USED —
Go beyond GST with tools for pricing, platform fees, tax estimates, and freelance income planning.
— LEARN —
— FAQ —
Everything you need to know about KaroTools
Yes! All tools on KaroTools are 100% free — no login, no subscription, no hidden charges. We built this for Indian freelancers who shouldn't have to pay just to calculate GST or generate an invoice.
Absolutely not. There's zero sign-up required. Just visit any tool, fill in your details, and get your result instantly. We believe in friction-free tools.
Yes! Our GST Invoice Generator lets you download a professional PDF invoice instantly — with your logo, GSTIN, CGST/SGST or IGST breakdown, HSN/SAC codes, payment status, and authorized signature area.
The GST calculator provides educational estimates based on selected GST rates and transaction type. Please verify final GST treatment with official sources or a qualified professional before filing or making compliance decisions.
Currently KaroTools offers: GST Calculator, GST Invoice Generator, Tax Calculators, and a Freelance Rate Calculator. We focus exclusively on practical financial tools to help Indian freelancers run their business.
KaroTools is built specifically for Indian freelancers, consultants, UI/UX designers, web developers, content writers, photographers, and small business owners who need fast, reliable business tools without complexity.
KaroTools provides free, easy-to-use financial tools for Indian freelancers. Calculate your taxes, GST, and generate professional invoices in seconds without giving away your data.