For those stuck in this dilemma, the most prudent path involves contacting Claris support directly; while rare, they sometimes assist with license retrieval for established enterprise clients. Alternatively, the industry strongly encourages migration. While moving a database to the current FileMaker version requires an investment of time and money, it ensures security, compatibility, and access to modern features like artificial intelligence integration and superior web deployment.
If the cost of a new FileMaker license is a concern, there are many powerful and modern alternatives available in 2026, ranging from free and open-source options to other commercial low-code platforms.
Understanding FileMaker Pro 15 Licensing: Downloads, Keys, and Modern Alternatives filemaker pro 15 license key link
: Claris no longer sells "downgrade" license keys for version 15. Incompatibility with New Licensing
FileMaker 15 was designed for Windows 7/10 and macOS Sierra/El Capitan. It is highly unstable or completely unrunnable on Windows 11 and modern macOS versions (especially on Apple Silicon M1/M2/M3 chips). For those stuck in this dilemma, the most
Do you still have access to the used to buy the software?
When you purchase FileMaker, Claris sends an email containing a link to a personalized Customer Software Distribution page. This page hosts your download links and license keys. Search your email archives for terms like "Claris Order," "FileMaker License," or your original purchase confirmation number. 2. Locate the License Certificate File If the cost of a new FileMaker license
: Official downloads for version 15 are generally no longer hosted on the main Claris Downloads page, which now typically focuses on versions 19 and later. Claris Community Usage and Reinstallation Installation
If you still have FileMaker 15 installed on an old machine but lost the key, you can find it within the application: For Pro/Advanced:
: FileMaker license keys are unique strings linked to specific user accounts or volume licensing agreements; public keys are routinely blacklisted.