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Dev tools · alternatives · 2026

24 alternatives to Open Source: Invoice & Inventory App

Build It Yourself: Your Business, Your Software

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    A couple of years ago, I had an interesting idea. What if there was a marketplace where all the underlying tech was open-source? The order management system, the storefront, customer support, etc. The marketplace would simply connect to the seller’s infra instead of locking them in. If, for some reason, the seller is removed from the marketplace, their software stays with them and they can continue accepting orders directly. This model can be used to disrupt any marketplace from AirBNB to UberEats: building tech for home renters and restaurants and later, leveraging that to build a competing…

    2022 · openship.org · its alternatives →

  2. 2

    Simple, beautiful mobile invoicing. 100% free 💸

    2018 · apps.apple.com · its alternatives →

  3. 3

    Free invoice templates and software

    2021 · free-invoice.co.za · its alternatives →

  4. 4

    A free invoice generator for startups

    2014 · its alternatives →

  5. 5

    Create professional invoices in any app w/ just a few clicks

    2023 · blaze.today · its alternatives →

  6. 6
  7. 7

    Open source, free invoicing

    2014 · invoiceninja.com · its alternatives →

  8. 8

    All-in-one invoicing tool

    2021 · apps.apple.com · its alternatives →

  9. 9

    Make invoices on the go for free

    2025 · apps.apple.com · its alternatives →

  10. 10

    Create PDF invoices for free

    2023 · invoicedragon.com · its alternatives →

  11. 11

    Create perfect invoices in minutes! Our free invoice generator offers stunning templates and a clean, modern UI. Simplify invoicing and get paid faster - try it today!

    2012 · createmyinvoice.com · its alternatives →

  12. 12

    The simplest app for doing business online. Sell online, send invoices, track invoice activities, get fast credit card payment with Paypal, Payoneer or Stripe. IT’S FREE!

    2017 · envoice.in · its alternatives →

  13. 13
    Bizcuit▲58

    The financial toolkit for entrepreneurs and business owners

    2022 · bizcuit.nl · its alternatives →

  14. 14

    I built an offline-first, open-source invoicing app because I wanted a simple way to generate invoices without SaaS lock-in. It runs fully locally, keeps all data on disk, and exports PDF invoices. I’m keeping it lightweight on purpose - it’s not a CRM. Feedback is very welcome.

    2025 · invoicingmaster.com · its alternatives →

  15. 15

    Generate invoice for your clients in a few clicks for free

    2024 · famewall.io · its alternatives →

  16. 16

    Open-source invoicing you actually own

    Aug 2026 · inkvoice.app · its alternatives →

  17. 17

    Hey Ya'll! My name is Steven and Im launching invoicebloom.io for Professional Invoicing & CRM for Small Businesses & Freelancers. Im a software developer and I sometimes work as a freelancer. Since some of freelance jobs were sidegigs I always just required payment in zelle or cash app. However, some of my clients kept requesting me for invoices for record keeping purposes. I also starting noticing that I kept going back to my email to check for client's information regarding past jobs I have done. So I decided to go on the hunt for some software that was cheap and work nicely and I did the…

    2025 · invoicebloom.io · its alternatives →

  18. 18
    InvoX▲23

    Self-hosted invoicing software for small businesses

    2025 · its alternatives →

  19. 19

    Invoice and bill maker, inventory management, store data

    2024 · play.google.com · its alternatives →

  20. 20

    Create customized, professional invoices for FREE, FOREVER!

    2024 · its alternatives →

  21. 21

    Professional invoicing made simple, powerful, and free

    2025 · invoicemana.com · its alternatives →

  22. 22

    Open source invoicing for developers

    2015 · github.com · its alternatives →

  23. 23

    Generate invoices for free with multiple templates.

    2025 · its alternatives →

  24. 24

    Offline-first invoicing for freelancers. Free forever.

    Mar 2026 · voxinvoice.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →