CrizaVoise by Criza Labs · v1.0.0
Free billing software that works offline
CrizaVoise is free, open-source billing software for small businesses. It makes GST-ready invoices, prints thermal receipts and tracks payments and stock, fully offline on Windows, Linux and macOS.
No subscription or trialFully offlineOpen source
What is CrizaVoise?
CrizaVoise is a free, open-source desktop app for making invoices and bills, made by Criza Labs. Shops, freelancers and small businesses use it to create GST-ready PDF invoices, quotations and receipts, print on 58 mm and 80 mm thermal printers, track payments and stock, and share invoices on WhatsApp. It runs fully offline, so the data stays on the user's own computer, and there is no subscription, trial or sign-up.
Everything a shop needs to bill
Bills in seconds
Quick bill for walk-in customers, product quick codes, product photos and voice typing in search.
GST-ready documents
PDF invoices, quotations, receipts and credit or debit notes with GSTIN, HSN/SAC and a UPI QR code.
Thermal receipts
Prints on 58 mm and 80 mm ESC/POS receipt printers over USB or network, and full-page A4 PDFs.
Get paid faster
Share invoices on WhatsApp, send payment reminders, and track payments and the cash and UPI ledger.
Stock and suppliers
Customers, products, stock levels, purchase bills, suppliers and returns, with CSV import and export.
Your data stays yours
A local database with backup and restore. No account, no server and no tracking.
At a glance
| Price | Free. No trial, subscription, licence key or ads |
|---|---|
| Licence | Apache License 2.0 |
| Works | Fully offline, data stored on your computer |
| Platforms | Windows, Linux and macOS |
| Languages | 8, including Hindi and Gujarati |
| Version | 1.0.0, released 10 November 2026 |
Honest limits
- It does not connect to the Invoice Registration Portal, so businesses that must e-invoice generate the IRN separately.
- The installers are not code-signed yet, so Windows and macOS show a warning the first time you open them.
- Gujarati and Hindi conjunct letters may not join correctly in PDFs; check a real invoice before relying on it.
Online generator or desktop app?
For a few invoices a month, the free GST invoice generator on this site is quicker: nothing to install. If you bill every day, keep stock or print counter receipts, CrizaVoise saves you retyping and keeps your records together.
Credit: CrizaVoise is built on Invoiso by Anoop P (MIT). Source code: GitHub.
Frequently asked questions
Is CrizaVoise really free?
Yes. No price, trial, subscription, licence key or ads. It is open source under the Apache License 2.0, so businesses can use it commercially.
Does it work without internet?
Yes. Everything is stored in a local database on your computer and nothing is sent to a server. Take regular backups from Settings.
Which computers does it run on?
Windows 10 and 11, Ubuntu and Debian (.deb), other Linux distributions (AppImage) and macOS.
Can it make e-invoices with an IRN?
No. It makes GST tax invoices offline and does not connect to the Invoice Registration Portal. Businesses required to e-invoice must generate the IRN separately.
How is it different from the online invoice generator?
The online generator is for occasional invoices and remembers nothing beyond your own details. CrizaVoise stores products, customers, stock, invoice numbers and payments, and prints thermal receipts, for daily billing.