The Small Business Guide to Open Source Software

Open source software is free to download. It's not free to run. Here's how to evaluate whether the total cost of ownership works in your favor.

By The StackMatch Research Team

Open source is free to download but costs 2-5x more to maintain — free software is only free if your time is worth zero

$0Download price

2-5xMaintenance cost vs commercial alternative

40%of open source projects become unmaintained within 3 years

Open source TCO includes installation, configuration, security patches, and ongoing maintenance. For most SMBs, commercial tools are cheaper.

The true cost of open source has three pillars: setup, maintenance, and security. Each pillar adds time and expertise that most small businesses don't have in-house.

scenarios where open source is the right choice

Mature with commercial backing, in-house technical staff, and prohibitively expensive commercial alternatives.

When open source makes sense

Open source is the right choice in three scenarios. The tool is mature with commercial backing (WordPress, Linux, PostgreSQL). You have technical staff who can maintain it in-house. The commercial alternatives are prohibitively expensive for your use case — BI tools and design software often have open source alternatives that are genuinely competitive.

The best open source tools have a commercial entity behind them: WordPress (Automattic), GitLab, and MongoDB are open source but offer paid support, managed hosting, and professional services. These are much safer bets than pure community projects.

When open source is a trap

Open source is the wrong choice when you don't have maintenance expertise. A tool that requires command-line configuration, manual security patches, and community forum troubleshooting is not free — it costs the time of whoever becomes the de facto sysadmin. Abandoned open source projects leave you with unmaintained software that has no support path.

Open source costs are hidden and back-loaded — free today, expensive tomorrow. Maintenance costs grow as the software ages and the original maintainers move on.

Open Source vs. Commercial Software

Factor	Open Source	Commercial SaaS
Upfront cost	$0	Subscription fee
Monthly maintenance	5-15 hrs of staff time	$0 (vendor-managed)
Security patches	You manage them	Automatic
Abandonment risk	40% within 3 years	Low (vendor-dependent)
Best for	Teams with dev capacity	Teams without IT staff

Open source evaluation checklist

When was the last update? Recent = active project
How many contributors are still active?
Is there a commercial entity backing the project?
Do you have staff who can maintain it in-house?
What's the estimated monthly maintenance time?

The most dangerous open source trap is the abandoned project that still works. It runs fine for months or years, never gets security patches, and suddenly becomes a liability when a vulnerability is discovered — and there's nobody to fix it.

Open source software is free to download. It's not free to run. For most small businesses without in-house technical staff, commercial tools with a vendor are cheaper total cost of ownership.

Run the free audit to see whether any open source tools in your stack are creating hidden maintenance costs — and whether commercial alternatives would be cheaper total cost of ownership.

Run your own audit