Best Free Invoice Software

Best free invoice software from Flowlu. Create invoices online and send immediately to clients. Customise pre-built templates for quick and easy styling. Email direct from the app or download PDF files instantly. Use the database to store products, prices and services, enabling intelligent and quick invoicing. Calculate and apply shipping, taxes and other costs within the app. Manage several accounts at once. Detailed reporting and analysis built in.


Free unlimited invoices

Our software lets you invoice your customers directly from the cloud. Create new invoices and send them to customers at lightning speeds. Have previous invoices available on the cloud for easy 24/7 reference.

Share Direct Link & Send by email

Be able to send your team the invoices they need immediately. With just a few clicks, you’ll have several options for sharing company invoices. Send invoices from Flowlu by email, get a direct link to them, or download them for offline storage.

Products & Services Catalog

Create a products and services catalog to make customer billing easy. You’ll have a database with the cost of each one of your products or services. When the time comes, just add them straight to the invoice before you bill your customer.

Taxes, Discounts, Shipping Charges Online

Create different charges that you can individually add or subtract to every invoice. Explain to your customers how much added costs are and where they’re coming from. Separate between added taxes, discounts you can offer, and shipping charges in each invoice.

Reminders For Customers

Don’t worry about billing a customer, and forgetting to follow up. Our reminders for customers lets you send an automatic notification to you and your client. He’ll be followed up on and you’ll know he hasn’t paid yet.

Online payments

Make it easier for your customers to get your money to you. Online payments let your customers pay you directly from the invoice page. They’ll see a detailed list of what the charges are, including taxes, shipping, and any discounts. They can then pay hassle free right from their computer.


Flowlu is the best free invoice software solution online, giving you full control over invoice generation, while allowing you to raise invoices and put together costings in a matter of clicks. Fully combined with email and PDF generation, as well as coming with shipping calculators and tax calculators as standard, Flowlu is the number one for best free invoice software.

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Flowlu - Best Free Invoice Software