Invoice Generator

Many free "invoice generators" on the internet are actually data-harvesting tools. When you click "Download PDF" on those sites, they send your client names, addresses, and sensitive financial data to a remote backend server, where the PDF is rendered using a library and sent back to you.

This means a random company now has a permanent copy of your business's financial records.

This tool at KaruviLab takes a radically different approach. It uses powerful browser WebAssembly technologies (like jspdf or pdf-lib) to write the raw binary code of a PDF file directly inside your browser's local memory.

1. When you type in the form, React stores your data in local state only.
2. When you click "Download," the JavaScript engine draws the text, lines, and tables onto a virtual canvas entirely on your CPU.
3. It compiles this canvas into a raw Blob (Binary Large Object).
4. It generates an ephemeral blob:// URL and triggers a simulated download click on your machine.

Because there is absolutely no backend server or API involved in the generation process, your highly sensitive business and financial data never actually leaves your physical device. It is mathematically impossible for us (or anyone else) to track, store, or view your invoices.