I've searched around Oracle's sites and cannot find the actual executable to download. I get sites that point to older versions, or to the source of Scene Builder instead. I'm looking for the actual windows/mac executable installer for the latest version of Scene Builder.
Here are both version 1.x and 2.x scene builders http://www.oracle.com/technetwork/java/javafxscenebuilder-1x-archive-2199384.html
This project was moved to openjfx project. So you can get the latest source code and any other version from http://hg.openjdk.java.net/openjfx
This is the scene builder for jdk 8u40 http://hg.openjdk.java.net/openjfx/8u/rt/file/5fc0ddb42776/apps/scenebuilder
Sadly, Oracle has decided to no longer provide binary downloads for Scene Builder. Their reasoning, as far as I can tell, seems to be that the main goal for the scene builder project is now to provide the SceneBuilderKit for integration inside IDEs (and IDE developers will, of course, compile it themselves) rather than the stand-alone SceneBuilderApp.
However, since Scene Builder has been open sourced, third parties can provide binary builds for download. One I'm aware of is Gluon; you can check out their downloads page. The version they currently offer is recent enough to support the new controls included in the JDK 8u40.
For more information, you may want to read the discussions about 8u40 release on the openjfx-dev mailing list.
Recent builds can also be found here: http://gluonhq.com/products/scene-builder/
Besides a runnable jar, they provide native installers as well.
You can download the latest version of screen builder from the following URL according to your platform http://gluonhq.com/open-source/scene-builder/
I've successfully pulled and compiled Scene Builder from here:
http://hg.openjdk.java.net/openjfx/8u-dev/rt/file/a607b58ec579/apps/scenebuilder
Althought it's dev branch, dev build proved to be pretty stable.
来源：https://stackoverflow.com/questions/28808130/where-exactly-can-i-download-the-latest-version-of-scene-builder-for-java