Choosing an invoicing tool means weighing billing features against maintenance and project activity. This July 2026 comparison uses ToolVitals data on project health, shipping activity, openness, licensing, and GitHub popularity.
The ranking includes open or source-visible tools and orders them by ToolVitals score, with GitHub stars used only as a secondary popularity signal when needed. The supplied scores and ordering are preserved.
Rankings
| Rank | Tool | Openness | License | Health | Shipping | GitHub Stars | Score | Status |
|---|---|---|---|---|---|---|---|---|
| 1 | SolidInvoice | OSI-approved OSS | MIT | 81 | 83 | 940 | 87 | 🟢 Excellent |
| 2 | Miru | OSI-approved OSS | MIT | 77 | 71 | 264 | 81 | 🟢 Excellent |
| 3 | InvoicePlane | OSI-approved OSS | MIT | 71 | 55 | 3091 | 73 | 🟢 Good |
| 4 | InvoiceShelf | OSI-approved OSS | AGPL-3.0 | 76 | 45 | 1767 | 71 | 🟢 Good |
| 5 | Easy Invoice PDF | OSI-approved OSS | AGPL-3.0 | 60 | 36 | 1010 | 62 | 🟢 Good |
| 6 | Upcount | OSI-approved OSS | GPL-3.0 | 54 | 20 | 390 | 53 | 🟡 Fair |
| 7 | Billingcat CRM | OSI-approved OSS | AGPL-3.0 | 51 | 25 | 18 | 50 | 🟡 Fair |
| 8 | Oreko | OSI-approved OSS | AGPL-3.0 | 49 | 0 | 22 | 44 | 🟡 Fair |
| 9 | Open Source Billing | OSI-approved OSS | GPL-3.0 | 41 | 0 | 770 | 39 | 🔴 Needs Attention |
| 10 | Crater | OSI-approved OSS | AGPL-3.0 | 36 | 0 | 8326 | 35 | 🔴 Needs Attention |
| 11 | Accountill | OSI-approved OSS | MIT | 36 | 0 | 1692 | 35 | 🔴 Needs Attention |
| 12 | BoxBilling | OSI-approved OSS | Apache-2.0 | 33 | 0 | 835 | 34 | 🔴 Needs Attention |
| 13 | BillForge | OSI-approved OSS | MIT | 24 | 0 | 6 | 30 | 🔴 Needs Attention |
Top 3 Highlights
SolidInvoice ranks first with a ToolVitals score of 87, backed by an 81 health score and the strongest shipping score in the list at 83. Its current feature set covers client management, invoices and quotes, recurring billing, Stripe and PayPal payments, multi-currency billing, and automated overdue reminders. It is OSI-approved OSS under the MIT license.
Miru ranks second with a ToolVitals score of 81, a 77 health score, and a 71 shipping score. It stands out for connecting time tracking directly to invoicing while also covering expenses, clients, projects, payments, and reporting, making it a broader fit for teams that bill for tracked work. It is self-hostable and is OSI-approved OSS under the MIT license.
InvoicePlane ranks third with a ToolVitals score of 73, a 71 health score, and a 55 shipping score. Its self-hosted application manages quotes, invoices, clients, and payments, with customizable templates and online payment support through PayPal and Stripe. Its 3,091 GitHub stars give it the largest GitHub audience among the top three. It is OSI-approved OSS under the MIT license.
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