The Generic Mapping Tools (GMT) are widely used across the Earth, Ocean, and Planetary sciences and beyond. A diverse community uses GMT to process data, generate publication-quality illustrations, automate workflows, and make animations. Scientific journals, posters at meetings, Wikipedia pages, and many more publications display illustrations made by GMT. And the best part: it is free, open source software licensed under the LGPL.
Got questions? Join the friendly GMT Community Forum to get help and connect with other users and developers.
Want to use GMT in MATLAB/Octave, Julia, or Python? Check out the GMT interfaces!
Sideloaded apps stop opening after 7 days. To prevent this, AltStore will automatically refresh them over local Wi-Fi if your computer is on and AltServer is running in the background. Troubleshooting Common Errors Error: "Could not find AltServer"
Let me know which app you are trying to install and your device details! I can also help you: Find popular open-source IPA repositories Fix specific AltServer connection issues how to install ipa file using altstore
Note: AltServer runs quietly in the background. On Windows, you will see its icon in the system tray (bottom-right corner). On macOS, it appears in the top menu bar. Step 3: Configure Your iOS Device and Connect Sideloaded apps stop opening after 7 days
Unzip the downloaded folder and drag the AltServer.app file into your folder. I can also help you: Find popular open-source
✅ AltServer installed on computer ✅ AltStore installed and trusted on iPhone/iPad ✅ IPA file obtained ✅ App installed via AltStore (+) button ✅ Apps refreshed before 7-day expiry
Now that AltStore is running on your phone, you can install any compatible IPA file. 1. Download Your IPA File
Free Apple Developer accounts only allow app certificates to remain valid for . After 7 days, sideloaded apps will crash upon opening.
GMT has been used from UNIX and Windows command lines for decades. More recently, GMT has been rebuilt as an Application Programming Interface (API) and can now be accessed via wrapper libraries from MATLAB/Octave, Julia, and Python, as well from custom programs written in C or C++.
See all the projects the team is working on in the Ecosystem page.
Want to see the code? All development happens through GitHub in our GenericMappingTools account.
Sideloaded apps stop opening after 7 days. To prevent this, AltStore will automatically refresh them over local Wi-Fi if your computer is on and AltServer is running in the background. Troubleshooting Common Errors Error: "Could not find AltServer"
Let me know which app you are trying to install and your device details! I can also help you: Find popular open-source IPA repositories Fix specific AltServer connection issues
Note: AltServer runs quietly in the background. On Windows, you will see its icon in the system tray (bottom-right corner). On macOS, it appears in the top menu bar. Step 3: Configure Your iOS Device and Connect
Unzip the downloaded folder and drag the AltServer.app file into your folder.
✅ AltServer installed on computer ✅ AltStore installed and trusted on iPhone/iPad ✅ IPA file obtained ✅ App installed via AltStore (+) button ✅ Apps refreshed before 7-day expiry
Now that AltStore is running on your phone, you can install any compatible IPA file. 1. Download Your IPA File
Free Apple Developer accounts only allow app certificates to remain valid for . After 7 days, sideloaded apps will crash upon opening.