# Billbook

> Free, frontend-only invoice and receipt generator by Lowkey Tools. No account required. Documents are stored locally in the user's browser.

Canonical application: https://lowkey.tools/billbook

Made by [Shrinath Prabhu](https://shrinath.me), creator of [Owleye Analytics](https://owleye.dev). [Back to Lowkey Tools](https://lowkey.tools).

Create invoices, shop and food receipts, rent receipts, society maintenance bills, cash vouchers and cash memos. Configure GST, VAT or custom tax manually, customize templates, import Excel/CSV/JSON, and export PDF, PNG or text. Offline use requires an initial online visit and completion of the service worker setup.

## Product documentation

- [Billbook application](https://lowkey.tools/billbook): Public interface, feature descriptions, instructions and FAQs.
- [Markdown guide](https://lowkey.tools/billbook/index.md): The public feature guide and FAQ in plain Markdown, including import limits, tax configuration and local storage behavior.
- [Full text guide](https://lowkey.tools/billbook/llms-full.txt): Expanded public product reference.

## Discovery

- [Sitemap](https://lowkey.tools/billbook/sitemap.xml): Canonical public page.

Private bills, customer details, uploaded files and local workspaces are not public documentation and are not included in these files.