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Open Source Projects using Square

A curated collection of the 1 best open source software using Square. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Invoice Ninja

Send invoices, accept payments, manage your business—all free

  • Stars

    10,494

  • Last commit

    5 hours ago

  • License

    Elastic-2.0
Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage projects without hidden fees.

Open Source Alternative to:

Quickbooks
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