ofxAddons
openFrameworks addons to view / edit GLSL sandbox's shaders (http://glsl.heroku.com/).
Forks
Forks pushed to more recently than tado/ofxGLSLSandbox itself, plus any admin-confirmed fork with commits of its own — worth checking if you're hitting issues with the original.
README
ofxGLSLSandbox
openFrameworks addon to view GLSL sandbox's shaders (http://glsl.heroku.com/).
Live edit
You can live edit and reload shader files through external editor.
[o] open: Open shader file with external editor. [r] reload: reload shader file.
<a href="http://www.flickr.com/photos/tadokoro/9383042520/" title="Untitled by Atsushi Tadokoro, on Flickr"><img src="http://farm3.staticflickr.com/2850/9383042520_b69a0e91c8_z.jpg" width="640" height="434" alt="Untitled"></a>
ofxGLSLSandbox is distributed under the MIT License.