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64-bit Only

We only offer 64-bit bins (x86_64 / amd64) at this time (upstream JavaScriptCore has dropped 32-bit support).

Support for ARM64 / Apple Silicon is being added to the 1.4 branch.

Linking on Windows / MSVC

In Visual Studio, go to Linker → General → Additional Library Directories in your project's properties and set one of the following:

 $(ULTRALIGHT_SDK_ROOT)/lib/win/x64/

Then, go to Linker → Input → Additional Dependencies and add the following:

Ultralight.lib
UltralightCore.lib
WebCore.lib
AppCore.lib

Note: AppCore.lib is optional, only link if you use the AppCore API headers..

Linking on Linux

First, copy the shared libraries in $(ULTRALIGHT_SDK_ROOT)/bin/linux to your OS's standard library directory.

Then, add the following to your Makefile's LDFLAGS:

-lUltralight -lUltralightCore -lWebCore -lAppCore

Note: -lAppCore is optional, only link if you use the AppCore API headers..

Linking on macOS

Within XCode, select your target and go to General → Linked Frameworks and Libraries and add the following:

libUltralightCore.dylib
libUltralight.dylib
libWebCore.dylib
libAppCore.dylib

Or alternatively, if you are building with a Makefile, add the following to your LDFLAGS:

-lUltralight -lUltralightCore -lWebCore -lAppCore

Note: AppCore is optional, only link if you use the AppCore API headers..