Ottomatic Lasso Servers EOL on December 18th, 2025

by | May 6, 2025

What is Lasso?

Originally developed by lassosoft.com and later acquired by Treefrog in Ontario, Canada, Lasso was once a popular middleware platform for integrating FileMaker with the web. However, since the platform was officially discontinued in 2017, it has become increasingly difficult to maintain and secure. As a result, Ottomatic has decided to fully deprecate our Lasso hosting services. We will be shutting down our remaining Lasso Server and archiving all website data by December 18th, 2025.

For those currently using Lasso, we strongly recommend migrating to a supported platform. 

Next Steps

There are two primary ways to migrate to a modern supported platform:

  • Convert your existing Lasso site to a current PHP-based solution
  • Rebuild your existing Lasso site using a modern JavaScript stack

Ottomatic offers ProofKit – our open-source web application framework built on Node.js and React – to help clients rebuild their existing Lasso sites. ProofKit accelerates development with reusable components, structured design patterns, and first-class support for scalable web architecture. 

If you have your own internal development resources or a trusted web partner, PHP or Node.js with ProofKit can be implemented independently. 

For the most seamless path forward, Ottomatic’s in-house web team is available to manage the complete modernization effort. We have extensive experience transitioning legacy systems and have successfully delivered high-performance websites across a wide range of industries. By partnering with us, you’ll benefit from a full-service approach; from discovery and UI/UX design to development, deployment, and long-term support, all built on a future-proof foundation with ProofKit. 

Speak with our team about transitioning to a modern stack!

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