Cmms Maintenance Management Software

CMMS stands for Computerized Maintenance Management System. It tracks the equipment you own, the work done on it, and the maintenance that is due, so that repairs stop being a thing somebody remembers and start being a thing the system schedules. Buying cmms maintenance management software is the usual answer, and for most maintenance teams it is still the right one.

Two things before the rest of this page is useful. We sell source code you clone and run yourself, so there is no signup here and no hosted maintenance product. And most people searching this term should install something that already exists rather than build one, because the boring parts of a CMMS are numerous and none of them are where your plant is different from anyone else's.

The rest of this page covers what the category actually contains, why the free options are worth a serious look, and the narrow case where building is defensible.

What a CMMS is made of

The demos lead with the work order screen. The parts that decide whether the system survives contact with a maintenance team are underneath it.

Try the free options properly before costing a build

The search results for this category are dominated by vendor listicles, so the free end of it is worth stating plainly.

The one thing worth checking before committing to any of them is the export. Ask what an asset hierarchy and a completed work order look like on the way out, in a format you could load somewhere else. A CMMS accumulates the only record of what has been done to your equipment, and that record is worth more than the software holding it.

The failure mode is data entry, not features

Maintenance systems rarely fail because the software lacked a feature. They fail because the completion data stopped arriving, and once a few months of history is missing, the reports built on it are guesses with a chart around them.

The mechanism is usually physical. Technicians work in plant rooms, basements, and roof spaces, which is exactly where mobile signal is worst, and a form that will not submit gets filled in later from memory, or not at all. Any evaluation of a CMMS should include one technician, one phone, and the worst-connected asset on the site.

This matters for the build decision more than any feature comparison. Offline capture is not a checkbox, it is a sync queue, a conflict rule for two people closing the same work order, and a story for what happens when a phone comes back online a week later. It is one of the larger pieces of engineering in the whole category, and it is the piece a web application does not get for free.

When building is defensible

Building a CMMS from nothing is usually a bad trade. There is a narrower version that is not.

What does not justify it: a vendor interface you dislike, one missing report, or a licence cost you have not compared against the salary cost of maintaining your own.

What you would start from here

There is no CMMS in this stack. No asset model, no work order table, no PM scheduler, and no meter readings. Saying that clearly matters more here than on most pages, because the asset hierarchy and the PM trigger rules are the category, and anyone implying otherwise is selling you a login screen.

What the Vault template gives you is the application around one: organizations as the boundary that assets and work orders scope to, roles and invitations so a contractor sees one customer's equipment and not the rest, a Hono backend with Prisma and Kysely on Postgres, an admin app for looking things up when somebody calls, and Stripe billing if you intend to sell the result. The editor rules that ship with the repository describe how backend features, error handling, and data fetching are structured here, which gives a coding agent project conventions to follow when it writes the asset and work order layer. Its output still needs review.

The parts you write are specific and worth listing before you commit: the asset hierarchy with a self-referencing parent, the work order with its trigger model, the PM scheduler that turns a rule plus a date or a meter reading into a due work order, and the parts transaction that closes with it. If technicians will use it in the field, add the offline sync queue to that list and estimate it honestly, because it is usually the largest item on it.

Below are the screens and packs that make up the starting point. Read them against the five systems above, and if the answer is that an existing CMMS covers all five for less than the build, that is the correct answer.