Vendor lock-in rarely begins with a conscious decision.

Usually it begins with a nice offer. Free trial. Easy migration. Everything from one source. And two years later you discover: switching would take months, cost a fortune, and overwhelm the entire team.

That is not an accident. That is the product.

What lock-in actually means

Technical vendor lock-in means your IT infrastructure is so closely tailored to the tools and services of a single vendor that switching becomes unrealistically expensive or complex.

This can show up as:

  • proprietary data formats that no other tool can read
  • API dependencies deeply embedded in your own code
  • service bundles where individual parts cannot be replaced
  • specialist knowledge that resides only within the vendor’s organisation

None of these points are inherently malicious. But together they create a situation where your vendor can dictate your prices — and you have to nod.

The invisible side of costs

The real costs of vendor lock-in rarely appear in the quote. They show up:

  • when licensing prices rise 20% annually
  • when support is only included in the most expensive tier
  • when a feature you need suddenly appears only in the next, more expensive version
  • when the vendor is acquired — and the new strategy does not include your product

Ways out

There are no quick fixes. But there are principles:

Prefer standard formats. Those who keep their data in open, well-documented formats can switch. Those who live in proprietary silos cannot.

Abstract interfaces. If your code writes directly against a specific vendor’s API, you are bound. An abstraction layer costs time — but it buys freedom.

Know open source alternatives. For almost every proprietary solution there is an open source alternative. Not always with the same feature set — but often with better long-term stability.

Document. Systems that are well-documented can be taken over, switched or adapted by others. Undocumented systems belong to whoever last touched them.


Sovereignty over your own infrastructure is not a given. It must be actively planned, maintained and defended.

That takes effort. But it is the effort that ultimately keeps you independent.