Open-source alternatives to Fortnox

Fortnox by Fortnox in the Payroll, finance & ERP category. These are the open alternatives we recommend looking at.

Swedish bookkeeping (SIE export, BAS chart of accounts, VAT and AGI filing) needs localisation – keeping Fortnox and integrating is often better.

ERPNext

Full ERP: accounting, invoicing, stock, purchasing, HR and payroll. Swedish localisation (SIE/BAS) is community-level and Swedish payroll rules (tax tables, AGI) are not covered.

GPL-3.0Strong copyleftnot verified

SaaS: YesClosed product: No

GitHub stars: 39.8k
Deployment: Docker, Helm
Login/SSO: OAuth/OIDC, LDAP

Odoo Community

Modular business suite: accounting, invoicing, CRM, HR, inventory and more.

LGPL-3.0Weak copyleftOpen corenot verified

SaaS: YesClosed product: Yes, with conditions

GitHub stars: 54.8k
Deployment: Docker, Helm
Login/SSO: OAuth built in; SAML via OCA auth_saml

Dolibarr

ERP and CRM for small and mid-sized companies with invoicing, quotes and inventory.

GPL-3.0Strong copyleftnot verified

SaaS: YesClosed product: No

GitHub stars: 7.7k
Deployment: Docker
Login/SSO: LDAP, OIDC module

Bigcapital

Modern accounting and invoicing software for small businesses.

AGPL-3.0Network copyleft (AGPL)not verified

SaaS: Yes, with conditionsClosed product: No

GitHub stars: 3.9k
Deployment: Docker

This is guidance, not legal advice (inte juridisk rådgivning). Check with a lawyer before deciding.

Sign in for more

Full licence analysis per use case (self-hosting, modifying, hosted service, AI use)
Save products to your own lists
Systemkarta: map the tools you already use (coming soon)
Personal help and AI advice (coming soon)