JavaScript
Python
Java
PHP
Rust
Haskell
Typescript
Elixir
GSTpad
myBillBook.in
FinalBooks
SaralBill
Treflo
DigiBill
ERachana
BharatBills
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
myBillBook.in - No.1 Billing Software for Small Businesses in India, Free Download. 60 Lakh+ Businesses Created GST Bills & Invoices with myBillBook Billing Software and increased Business. GST Billing Software for Bharat.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
FinalBooks - FinalBooks is the business software that is used to manage the major operations of the business, such as accounts, finance, billing, purchase, inventory, and stock management.
PHP - A popular general-purpose scripting language that is especially suited to web development
SaralBill - SaralBill is accounting software that is used to manage the accounting operations for small to medium size businesses.