Key takeaways
- Check what 'free' means: invoice caps, trials, ads, watermarks and paid exports are common.
- Offline software keeps working without the internet and keeps your data on your computer; back it up.
- An online invoice generator is enough for occasional invoices; daily billing needs software that remembers products, customers and stock.
Billing software promises to save time, but many “free” plans come with limits you discover only after entering all your products. Here is what to check before you choose.
Online generator or billing software?
| You bill… | Best fit |
|---|---|
| A few times a month | An online tool such as the GST invoice generator. Nothing to install. |
| Every day, with repeat products and customers | Billing software that stores items, customers, stock and invoice numbers. |
| At a busy counter | Software with quick billing, barcode or quick codes, and thermal receipt printing. |
What “free” can mean
Read the plan details for:
- Invoice or customer caps per month
- Time-limited trials that become paid
- Watermarks or branding on your invoices
- Paid exports: your own data locked behind an upgrade
- Ads inside the app
- Mandatory login and cloud storage
Offline vs cloud
Offline (desktop) software runs on your computer, works during internet outages and keeps your data in your hands. You are responsible for backups.
Cloud software syncs across devices and backs up automatically, but needs internet, usually has a subscription for full features, and stores your business data with the provider.
Features that matter for Indian shops
- GST tax invoices with GSTIN, HSN/SAC, CGST/SGST/IGST and the amount in words
- Bill of supply for composition dealers
- 58 mm / 80 mm thermal printing for counter receipts
- UPI QR with the amount on each invoice
- Customer, product and stock management, with low-stock alerts
- WhatsApp sharing of invoices and payment reminders
- Backup and restore, and CSV import/export
- Hindi, Gujarati or other local languages, if your staff need them
Why open source is worth considering
Open-source billing software publishes its code under a licence. That means no surprise price changes for the version you use, the freedom to keep using it, and the ability for any developer to customise it.
A free, offline option: CrizaVoise
CrizaVoise is a free, open-source billing app from Criza Labs, the team behind these tools. It runs fully offline on Windows, Linux and macOS, makes GST-ready invoices and quotations, prints thermal receipts, tracks stock, payments and suppliers, and adds a UPI QR to invoices. There is no trial, subscription, sign-up or ads.
Its honest limits: it does not generate e-invoice IRNs, and the installers are not code-signed yet, so Windows shows a warning on first install.
Quick checklist before you commit
- Enter five real products and make three real invoices.
- Print one on your actual printer.
- Export your data and check you can open it.
- Take a backup and restore it on another computer.
- Read what happens to your data if you stop using it.
Free tools for this
No. 27 · Business
GST Invoice Generator
Make a GST tax invoice online for free: CGST, SGST or IGST worked out, amount in words, your logo and a UPI QR code.
No. 23 · QR codes
UPI QR Code Generator
Create a UPI payment QR code for your shop with your UPI ID, name and an optional amount.
