GitHub Repo · Finance & Accounting

Invoice Ninja

Open-source invoicing, quotes, payments and time tracking.

What Invoice Ninja does

Invoice Ninja creates quotes and invoices, accepts online payments, sends automatic reminders, tracks expenses and time and offers a client portal, hosted or self-hosted.

Best for

Freelancers and service businesses
Recurring invoices
Client portals

How small businesses use Invoice Ninja

Convert a quote into an invoice
Send automatic payment reminders
Bill for tracked hours

Quick facts
Type	GitHub Repo
Category	Finance & Accounting
Pricing	Free plan; self-host or paid hosted plans
Repository	github.com/invoiceninja/invoiceninja
License	See repository
Setup level	Intermediate
Main tradeoff	Self-hosting needs server upkeep; the hosted plans avoid that but cost money.
GitHub stars	10.3k (as of 2026-10-21)
Added	Oct 16, 2026
Last reviewed	Oct 16, 2026

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Invoice Ninja: common questions

Who should use Invoice Ninja?

Invoice Ninja suits freelancers and service businesses, recurring invoices and client portals.

When should you choose something else instead of Invoice Ninja?

Self-hosting needs server upkeep; the hosted plans avoid that but cost money. If that matters for your business, compare other options such as QuickBooks, Xero and Booke AI.

Is Invoice Ninja free?

Invoice Ninja pricing: Free plan; self-host or paid hosted plans. Pricing changes often, so confirm current plans on the official repository or website before you buy.

Can a small business self-host Invoice Ninja?

Yes. Invoice Ninja is open source on GitHub, and its setup level is intermediate. You will need a computer or server to run it and someone to keep it updated and backed up, or you can use a hosted option if one is offered.