If you need a professional local development environment but aren't ready to purchase a MAMP PRO license, consider these options:
: Updates within the version 4.x cycle were free. However, moving to modern versions like MAMP PRO 7 usually requires a paid upgrade. Current Version : As of April 2026, the current version is MAMP PRO 7.4.0 Where to Find the Serial Inside the App If you still have the app installed on an old machine: Click on the menu in the top bar. About MAMP PRO to see your version and current serial number. If it's not registered, you can enter your key under Register MAMP PRO… MAMP PRO - Your local web development solution Mamp pro 4 serial key mac
Save the state of your host and database before making big changes. The Risks of Using "Free" Serial Keys If you need a professional local development environment
: Use the MAMP Serial Number Recovery Tool by entering the email address associated with your original purchase. About MAMP PRO to see your version and current serial number
Run as many different projects as you want with custom URLs (e.g., mysite.local ).
If you have previously purchased MAMP PRO 4 and lost your key, you can retrieve it through the following official channels: