About

Built by a Developer Who Got Tired of Paying for Invoicing

I'm Shahzaib Sheikh — a software developer and product builder based in Karachi, Pakistan. I've spent years building mobile apps and SaaS products for clients around the world, and for a long time I used one of the popular paid invoicing tools to bill them.

Then I looked at my monthly subscriptions and added up what I was paying for invoicing software. For a tool I used maybe 5-10 minutes a month, it didn't make sense. So I built my own.

Invoice Pro Lab started as a personal tool. I shared it with a few freelancer friends and they found it useful too. So I cleaned it up, added proper templates and currency support, and launched it publicly — free, with no account required.

S
Shahzaib Sheikh
Software Developer & Creator of Invoice Pro Lab

Full-stack developer with experience in Flutter, React, Next.js, and Node.js. Based in Karachi, Pakistan. I build tools I wish I had — and Invoice Pro Lab is one of them. You can reach me at hello@shaykhay.com.

What Makes Invoice Pro Lab Different

🔒
Privacy First
Every piece of data you enter stays in your browser. Nothing goes to any server. Your business information is yours alone.
⚡
Instant PDF
Download a professional PDF invoice in one click. No conversion, no waiting, no email confirmation required.
🎨
5 Templates
Modern, Classic, Minimal, Bold, and Elegant — a design for every industry and brand style.
💱
12 Currencies
USD, EUR, GBP, PKR, AED, SAR, INR, CAD, AUD, JPY, CHF, CNY. Invoice any client anywhere.
🏦
Payment Details
Include IBAN, SWIFT, routing numbers and full payment instructions directly on the invoice.
📱
Works Everywhere
Runs in any modern browser on Windows, Mac, Linux, or mobile. No installation required.
🆓
Forever Free
No subscription, no freemium tricks, no hidden costs. It is and will always be free.
💾
Auto-Save
Your invoice drafts save automatically as you type. Close the tab and your work is still there.

The Mission

Professional invoicing shouldn't cost money or require signing up for another service. Freelancers, independent contractors, and small business owners — whether they're billing from Karachi, Lagos, or London — deserve a fast, private, professional invoicing tool that just works. That's what Invoice Pro Lab is for.

How to Create an Invoice

01
Choose a template
Pick from 5 professional templates and set your brand accent colour. The preview updates instantly.
02
Fill in your details
Add your business info, your client's details, the line items you're billing for, taxes, and payment terms.
03
Upload your logo
Click the logo area in the Template tab to upload your company logo. Resize it to fit perfectly.
04
Download the PDF
Click the PDF button — your invoice downloads immediately as a high-quality, print-ready PDF file.

Technical Transparency

Invoice Pro Lab is built with Next.js (React) and runs entirely in the browser for all invoice functionality. No backend servers process your invoice data. When you fill in your invoice details, the data lives in your browser's local storage only.

The only external requests made are for font loading (Google Fonts) and the optional AdSense ad units that help keep the tool free. Your invoice content — client names, amounts, business details — never leaves your device.

Ready to create your first invoice?

Free. No account. No limits. Download a professional PDF in under 2 minutes.

Open Invoice Generator →