SolidInvoice
A smaller MIT invoicing app.
Not affiliated with FreshBooks
SolidInvoice is the highest-scored licence-free option listed for the job of FreshBooks (50 of 100). 6 apps are listed. This site is not affiliated with FreshBooks.
Last updated 15 Oct 2026.
No per-seat licence. FreshBooks is a product of FreshBooks. Open SaaS Alternatives is not endorsed by them.
List price not stored. We have not stored a list price. Vendor pages and roundups disagreed, or the page was not re-checked for this build. Type the figure on your invoice into the calculator.
A smaller MIT invoicing app.
A small-business ERP that includes invoicing. GPL.
Accounting on a Business Source Licence with a tight use grant.
Invoicing on the Elastic License. You may not resell it as a host.
A maintained fork of Crater for invoices and estimates.
An invoicing app whose last tagged release was March 2022.
✓ does it, ◐ partly, ✗ no, — not assessed. Editorial only.
| Job | SolidInvoice | Dolibarr | Akaunting |
|---|---|---|---|
| Invoices | — | ✓ | ✓ |
| Clients | — | ✓ | ✓ |
| Expenses | — | ✓ | ✓ |
| Online payments | — | ◐ | ◐ |
SolidInvoice leads this list on measured signals (50). SolidInvoice is a PHP invoicer for quotes and invoices. GitHub reports MIT, with 978 stars on 15 Oct 2026. It includes Docker Compose. It is a lighter option than Dolibarr and a cleaner licence than Akaunting’s BUSL.
We have not stored a list price. Vendor pages and roundups disagreed, or the page was not re-checked for this build. Type the figure on your invoice into the calculator. The calculator on this page uses the number on your invoice, not a guessed list price.
No. FreshBooks is a product of FreshBooks. We are not affiliated with, endorsed by, or sponsored by FreshBooks. “Replaces FreshBooks” describes the job, not a partnership.
Scores follow the published formula.