Invoicing apps in 2026

Commercial invoicing apps

1. 1
   Harvest Harvest

   Time tracking and management software with powerful easy reporting and streamlined online invoicing. Loved by 73,000 businesses. Get started for free.

   Complete system Production-ready An agency or consultancy bills by the hour and wants staff to track time easily against project budgets.

   503 readers a month Commercial
2. 2
   Stripe Invoicing Stripe, Inc.

   Create and send invoices online in minutes with Stripe. Use our invoicing software to automate payment collection and recover revenue with AI-powered dunning.

   Complete system Production-ready You already take payments through Stripe and want invoices that collect card and bank payments automatically.

   Commercial
3. 3
   Bill.com BILL Holdings

   The AP, AR, and spend & expense solution that lets you create and pay bills, manage expenses, control budgets, and get the credit your business/firm needs to grow.

   Complete system Production-ready A US small or midsize company or its accounting firm wants to automate bill approval and payment runs.

   363 readers a month Since 2006 Commercial
4. 4
   Wave Wave Financial

   Create beautiful invoices, accept online payments, and make accounting easy—all in one place—with Wave’s suite of money management tools.

   Complete system Production-ready A US or Canadian freelancer or micro-business wants free bookkeeping and invoicing and does not need integrations.

   353 readers a month Commercial
5. 5
   FreshBooks FreshBooks

   Cloud-based accounting software service

   Complete system Production-ready A freelancer or small agency bills clients for time and wants invoicing first and accounting second.

   103 readers a month Since 2004 Commercial
6. 6
   Zoho Invoice Zoho Corporation

   Complete system Production-ready A freelancer wants free professional invoicing and may move to Zoho Books later.

   Commercial
7. 7
   Invoice Ninja (hosted) Invoice Ninja

   Free invoicing software for freelancers and small businesses. Send invoices and quotes, get paid online, and track time and expenses. Free forever.

   Complete system Production-ready A freelancer or small business wants free or cheap invoicing with the option to self-host the same software later.

   Commercial

Open-source invoicing apps

Complete systems you can adopt 9

1. 1
   Invoify al1abb

   An invoice generator app built using Next.js, Typescript, and Shadcn

   Complete system Usable You need to produce good-looking one-off invoices without signing up for an invoicing service.

   ★ 6.4k MIT TypeScript Active, pushed 2 months ago
2. 2
   InvoiceShelf InvoiceShelf

   Open Source Invoicing Solution for Individuals & Businesses

   Complete system Usable You need straightforward invoicing on your own server and do not need full accounting.

   ★ 1.9k AGPL-3.0 PHP Active, pushed 6 days ago
3. 3
   Invio kittendevv

   Self-hosted invoicing without the bloat.

   Complete system Usable A freelancer wants simple self-hosted invoicing with European e-invoice output.

   ★ 1.2k Unlicense TypeScript Active, pushed 14 days ago
4. 4
   EasyInvoicePDF VladSez

   Free & Open-Source Invoice Generator - No Sign-Up, No Ads, Instant PDF Export, 100% In-Browser, and Fully Customizable Templates. ⭐ Star the repo if you like it

   Complete system Usable A freelancer wants quick, free, private PDF invoices without an account.

   ★ 1.1k AGPL-3.0 TypeScript Active, pushed 12 days ago
5. 5
   SolidInvoice SolidInvoice

   Simple and elegant invoicing solution.

   Complete system Production-ready A freelancer or small business wants mature invoicing on its own server, or hosted for a flat monthly fee.

   ★ 978 MIT PHP Active, pushed 3 days ago
6. 6
   Invoicerr invoicerr-app

   Invoicerr is a freelance-focused invoicing app that lets you create quotes, generate invoices, track payments, and collect secure signatures.

   Complete system Usable A European freelancer or small company needs e-invoicing compliance such as Factur-X, XRechnung or Peppol on its own server.

   ★ 733 AGPL-3.0 TypeScript Active, pushed yesterday
7. 7
   Upcount namespace-ee

   Invoicing for freelancers & small businesses

   Complete system Usable A freelancer wants free invoicing and time tracking on one computer with no cloud account.

   ★ 400 GPL-3.0 TypeScript Active, pushed 17 days ago
8. 8
   Free-GST-Billing-Software IamRamgarhia

   Free GST Billing Software — Free, open-source GST invoice & billing software. Tax Invoice, Proforma, Credit Note, Bill of Supply. CGST/SGST/IGST. Multi-currency. 100% offline, no signup. PWA installable.

   Complete system Experimental An Indian shop or freelancer wants free GST invoicing on one computer instead of paying for Tally or Vyapar.

   ★ 336 MIT JavaScript Active, pushed 4 days ago
9. 9
   Manta hql287

   🎉 Flexible invoicing desktop app with beautiful & customizable templates.

   Complete system Experimental You want a simple offline invoice designer and accept unmaintained software.

   ★ 5.5k LGPL-3.0 JavaScript Quiet, pushed 2 years ago

Building blocks for your own system 1

1. 1
   Laravel-invoices ElegantEngineeringTech

   📑 Store and generate beautiful PDF invoices in Laravel

   Building block Usable Your Laravel app needs proper invoice records and PDFs without building them yourself.

   ★ 237 MIT PHP Active, pushed today

All 18 open-source invoicing projects

Compared head to head

Also under accounting software

Open-source licenses

• Permissive: 12. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
• Network copyleft: 3. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
• Public domain: 1. No conditions at all. You can copy, change and sell the code without even keeping the notice.
• Strong copyleft: 1. If you distribute the program or anything built on it, you must release the whole source under the same license.
• Weak copyleft: 1. Changes to the licensed files must be shared, but you can link them into a closed program.

Languages

TypeScript 7, JavaScript 4, PHP 3, Rust 1, Vue 1, Ruby 1 and SCSS 1.