Breadandbuttersounds, which recently introduced an online Roland Boutique JP-08 Editor/Patch librarian, has announced a similar web-based patch editor for the Roland Boutique JU-06.

The editor uses the Web MIDI API, so it requires a web browser that supports it. Chrome is recommended. 

Features:

• Bi directional communication with your Roland Boutique JU-06 using Sysex (Important! please see below for setting it up)
• Precision editing of all parameters. Use the sliders of your JU-06, the sliders on the web page or enter the exact value for a parameter manually (you will notice that the sliders on the JU-06 in itself are quite inexact so an editor like this is necessary for serious patch making)
• When you change patch or press Manual on your JU-06 the patch is automatically uploaded to the editor
• See parameters and learn from your favorite factory presets
• Easy access of important features like the Delay, Portamento and Bend Range
• You can save your patches if you log in using a Google Account

See the Breadandbuttersounds site for more info.