OpenSoft

Open source Accounting & invoicing

Bookkeeping, invoicing and expense tracking for small businesses. Ranked by health score.

ERPNext

86 · Healthy

Full ERP suite covering accounting, inventory, sales, purchasing and HR, with a CRM module for leads and opportunities.

Free, share changesGPL-3.0★ 40kLast commit today

Bigcapital

58 · Caution

Double-entry accounting with financial reports, inventory and invoicing.

Free, share hosted changesAGPL-3.0★ 3.9kLast commit today

Source-available and unverified licenses

The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.

Akaunting

87 · Healthy

Accounting app for small businesses with invoicing, expenses and an app store.

Free up to a limitBusiness Source License 1.1Relicensed 2023★ 10kLast commit today

Invoice Ninja

74 · Stable

Invoicing, quotes, payments and time tracking for freelancers and small businesses.

Free, no resellingElastic License 2.0★ 10kLast commit 21 days ago

At a glance

Health and license are separate verdicts: a project can be well maintained and still not be open source.

ProjectHealthLicenseStarsLast commit
ERPNext86 · HealthyFree, share changesGPL-3.040ktoday
Bigcapital58 · CautionFree, share hosted changesAGPL-3.03.9ktoday
Akaunting87 · HealthyFree up to a limitBusiness Source License 1.1Relicensed 202310ktoday
Invoice Ninja74 · StableFree, no resellingElastic License 2.010k21 days ago

Paid products these replace

Alternatives to FreshBooksAlternatives to QuickBooksAlternatives to XeroAlternatives to Zoho Invoice

Scores last refreshed from GitHub on 9 October 2026. How we score.