Sign-up / Sign-in not required
The tools we highlight in this section are free for use and great for one-time use because these tools do not require sign-ups for you to start using them. The first six provide payment gateway integrations that give your client multiple methods to quickly clear your invoices.
The next five tools do not have payment integrations but are still great invoicing tools to let you send out your invoices quickly and easily.
ZOHO has a hassle-free invoice generator you can take advantage of. ZOHO makes it easy to create and save, print, or send well-designed invoices in PDF to your clients.
Every section down to the Notes and T&C is editable. However, it doesn’t seem to have any attached payment options.
As the name says, Free Invoice Builder is an online tool for hassle-free invoice creation. It offers many pre-made invoice templates that can be modified according to your needs and created into personalized professional invoices.
The tool allows you to generate an unlimited number of invoices and download them in PDF format. You can add as many elements as you want in your invoices including tax ratio, hourly rates, or discounts etc. It is also a good source to save, manage and track all your invoices in one place.
Free Invoice Generator is a great site for finding specific templates, such as invoices for translation services, auto repair, or even region-specific invoicing needs.
It has plenty of payment gateway options (Paypal, credit cards, Stripe, eWay, 2CheckOut, Authorize.Net) or you can just download the invoice in PDF form and/or email the invoice to your client.
It has a subscription-based billing software for time-tracking options among other features.
Invoice Generator does not require registration and you can start work directly on an organized template.
Just download the invoice in PDF to send to your clients, and you can start receiving payments via credit card, PayPal, wire transfer, or even Bitcoin.
Moreover, clients that opt for offline payments can let you know that the payment is on the way with the click of a button.
Slimvoice provides easy invoicing options. You can create, manage, and send an unlimited number of invoices. Also, it lets you to download your invoice in PDF format.
It also has Stripe integration, allowing you to accept credit card payments right on your invoice.
Invoice.to has a super-simple interface of the website, perfect for one-time use. If you like to see a little design, color or boxes in your invoices, you won’t find much of any of these elements here.
This tool carries Stripe integration but the form keeps everything else relatively quick and easy.
Duet is a free-to-use invoicing app that you can host up in your own server. It takes payments via Stripe or Paypal. Once payment is cleared, you will receive an email notification.
The app allows you to send unlimited, simple, and organized invoices to unlimited clients.
It also comes with a reporting module, and you can check all your past payments from the dashboard. Check out the Duet app demo here.
If you want the ability to simplify or enhance your invoices, Invoice Simple would be the best tool for that. It lets you customize your invoices to suit your needs.
You start off with a basic invoice template but you can change colors, add a stamp, insert payment terms/notes or client notes, or change the currency and date format (if your client is from another region).
After all that, just download or email your invoice. There are no mentions of payment integrations.
Shopify has an invoice generator that churns out a rather professional-looking invoice. The good news is you don’t have to be a Shopify user to use this invoicing tool.
However, instead of an in-template form, this generator is full of fields that you have to fill in first before it can generate a preview for you (which may slow down the process just a little).
Sign-up / Sign-in required
If you do not mind signing up to use a free invoicing tool, then we have a few more tools here that you might want to look into.
Some of these tools are free for life, giving you an unlimited number of invoices for an unlimited number of clients, while others are attached to a pro or premium invoicing/billing tool that you can consider checking out if you like the free version.
You can manage your clients and view the summary of your business activity in an easy-to-manage dashboard. Also, track your time, expenses, and mileage and turn them into bills with one click.
Wave is a well-known accounting tool that gives you free and unlimited invoices for an unlimited number of clients. They also have an app for iOS.
Invoicera has a time-tracking feature as well as a late fee feature (use your discretion) on top of payment options like PayPal and Stripe.
Hiveage gives you unlimited invoices for unlimited clients but you have to sign up first for their free plan. You can customize plans based on the features you need. The free plan gives you PayPal as its only payment option.
This is a full-fledged bookkeeping app with a fine invoicing tool attached. Invoices can be customized to show only parts you want the clients to see, and they can be sent out with an attached email or note.
Ronin is a great solution for freelancers and small business owners. You can manage invoices, estimates, time, and clients using it.
Octobat gives Stripe adopters automatic invoicing power while keeping their taxes in mind. It is a paid tool but you get to send 10 free invoices every month.