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9 jobs · 18 apps

Best open source software for small business

For a small business, a self-hosted stack starts with Odoo for accounting, Twenty for customers and Ever Gauzy for inventory.

A small business stack built from self-hostable apps, ranked with the small-business profile: stars, activity, Docker images, open-source licenses and appsgit deploy guides.

Updated · data from GitHub, refreshed daily

Top picks

  1. Rank 1:

    Odoo

    odoo/odoo

    Free open source ERP system.

    Active · last commit Oct 28, 2026

    ERP & InventoryPythonDocker

    Stands out for the most commits in the last 12 months (17,454). Odoo has 55,380 GitHub stars, uses the LGPL-3.0 license, ships a Docker image and had 17,454 commits in the last year; it replaces NetSuite and SAP Business One.

  2. Rank 2:

    ERPNext

    frappe/erpnext

    ERP system to help you run your business.

    Active · last commit Oct 28, 2026

    ERP & InventoryPythonDocker

    Stands out for the longest track record (since 2011). ERPNext has 40,687 GitHub stars, uses the GPL-3.0 license, ships a Docker image and had 10,424 commits in the last year; it replaces NetSuite and SAP Business One.

At a glance

Open source software for small business compared

Each section takes the top-ranked apps in one catalog category, scored on GitHub stars, commits in the last year, Docker images, open-source licenses, project websites, recent commits and deploy guides; an app appears only once. Projects with fewer than 12 commits in the last 12 months rank below every more active project.

Top 10 picks compared, data as of Oct 28, 2026
AppStands out forLicenseGitHub starsCommits (12 mo)Last commitDocker image
Odoothe most commits in the last 12 months (17,454)LGPL-3.055,38017,454Oct 28, 2026Yes
ERPNextthe longest track record (since 2011)GPL-3.040,68710,424Oct 28, 2026Yes
Twentythe most GitHub starsAGPL-3.059,9659,000Oct 28, 2026Yes
Krayina permissive MIT licenseMIT24,071535Oct 21, 2026Yes
Ever Gauzy–AGPL-3.08,6355,783Oct 28, 2026Yes
Dolibarr–GPL-3.07,7949,011Oct 28, 2026Yes
Open Source POS–MIT4,466373Oct 27, 2026Yes
Lakasir–GPL-3.0916160Oct 22, 2026Yes
Saleor–BSD-3-Clause23,485508Oct 27, 2026Yes
MedusaJs–MIT36,9761,957Oct 28, 2026No

1 of 9 · 2 picks

Accounting and invoicing

  1. 1

    Odoo

    Free open source ERP system.

    Stands out for the most commits in the last 12 months (17,454). Odoo has 55,380 GitHub stars, uses the LGPL-3.0 license, ships a Docker image and had 17,454 commits in the last year; it replaces NetSuite and SAP Business One.

  2. 2

    ERPNext

    ERP system to help you run your business.

    Stands out for the longest track record (since 2011). ERPNext has 40,687 GitHub stars, uses the GPL-3.0 license, ships a Docker image and had 10,424 commits in the last year; it replaces NetSuite and SAP Business One.

2 of 9 · 2 picks

CRM

  1. 1

    Twenty

    A modern CRM offering the flexibility of open source, advanced features, and a sleek design.

    Stands out for the most GitHub stars. Twenty has 59,965 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 9,000 commits in the last year; it replaces Salesforce and HubSpot.

  2. 2

    Krayin

    CRM solution for SMEs and Enterprises for complete customer lifecycle management.

    Stands out for a permissive MIT license. Krayin has 24,071 GitHub stars, uses the MIT license, ships a Docker image and had 535 commits in the last year; it replaces Salesforce and HubSpot.

3 of 9 · 2 picks

ERP and inventory

  1. 1

    Ever Gauzy

    Open business management platform for collaborative, on-demand and sharing economies (ERP/CRM/HRM/ATS/PM).

    Ever Gauzy has 8,635 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 5,783 commits in the last year; it replaces BambooHR and Workday.

  2. 2

    Dolibarr

    Modern CRM software package to manage your company or foundation activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, ...).

    Dolibarr has 7,794 GitHub stars, uses the GPL-3.0 license, ships a Docker image and had 9,011 commits in the last year; it replaces NetSuite and SAP Business One.

4 of 9 · 2 picks

Point of sale

  1. 1

    Open Source POS

    Open Source Point of Sale is a web based point of sale system.

    Open Source POS has 4,466 GitHub stars, uses the MIT license, ships a Docker image and had 373 commits in the last year; it replaces Square POS and Shopify POS.

  2. 2

    Lakasir

    Simple Laravel POS with product and stock management, purchasing, vouchers, receivables, barcode support and USB thermal printing.

    Lakasir has 916 GitHub stars, uses the GPL-3.0 license, ships a Docker image and had 160 commits in the last year; it replaces Square POS and Shopify POS.

5 of 9 · 2 picks

Online store

  1. 1

    Saleor

    GraphQL native, API-only platform for scalable composable e-commerce storefront.

    Saleor has 23,485 GitHub stars, uses the BSD-3-Clause license, ships a Docker image and had 508 commits in the last year; it replaces Shopify.

  2. 2

    MedusaJs

    Headless commerce engine that enables developers to create amazing digital commerce experiences.

    AI-nativeMedusaJs has 36,976 GitHub stars, uses the MIT license and had 1,957 commits in the last year; it replaces Shopify.

6 of 9 · 2 picks

Website

  1. 1

    Strapi

    Headless CMS that lets developers build content APIs fast while giving content creators a friendly editing interface.

    Strapi has 73,390 GitHub stars, uses the MIT license and had 1,699 commits in the last year; it replaces WordPress.com and Webflow.

  2. 2

    WordPress

    World's most-used blogging and CMS engine.

    WordPress has 21,509 GitHub stars, uses the GPL-2.0 license and had 2,760 commits in the last year; it replaces WordPress.com and Webflow.

7 of 9 · 2 picks

Appointments

  1. 1

    Cal.diy

    Online appointment scheduling system.

    Cal.diy has 49,455 GitHub stars, uses the MIT license, ships a Docker image and had 1,968 commits in the last year; it replaces Calendly.

  2. 2

    Rallly

    Create polls to vote on dates and times (alternative to Doodle).

    Rallly has 5,329 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 1,711 commits in the last year; it replaces Calendly.

8 of 9 · 2 picks

Files and documents

  1. 1

    Syncthing

    Syncthing is an open source peer-to-peer file synchronisation tool.

    Syncthing has 89,827 GitHub stars, uses the MPL-2.0 license, ships a Docker image and had 244 commits in the last year; it replaces Google Drive and Dropbox.

  2. 2

    Puter

    Web-based operating system designed to be feature-rich, exceptionally fast, and highly extensible.

    Puter has 43,955 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 2,744 commits in the last year; it replaces Dropbox.

9 of 9 · 2 picks

Passwords

  1. 1

    Vaultwarden

    Lightweight Bitwarden server API implementation written in Rust.

    Vaultwarden has 69,807 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 217 commits in the last year; it replaces Bitwarden and 1Password.

  2. 2

    Bitwarden

    Password manager with a webapp, browser extension, and mobile app.

    Bitwarden has 20,499 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 1,729 commits in the last year; it replaces Bitwarden and 1Password.

FAQ

Questions and answers

Still curious? Email info@appsgit.com.

Can a small business run this without an IT team?

Yes, if someone is comfortable with Docker or a server panel. Pick the apps that ship Docker images, start with one or two, and set up automatic backups before you move real data in.

Is Odoo free?

Yes. Odoo is open-source software released under the LGPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.

Can I run this stack with Docker?

15 of the 18 apps here publish Docker images, including Odoo, ERPNext and Twenty, so most of the stack can run side by side with Docker Compose on one server. Size the server for the heaviest app and add off-site backups.

How is this list ranked?

Each section takes the top-ranked apps in one catalog category, scored on GitHub stars, commits in the last year, Docker images, open-source licenses, project websites, recent commits and deploy guides; an app appears only once. Projects with fewer than 12 commits in the last 12 months rank below every more active project.

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