Write custom JS/JSX/CSS/LESS/SCSS/SASS snippets that can be injected by click of a button. Features: * Custom code or link to an external library * Filter on specific URL's * Auto run * Filter auto run on specific URL's * Simple interface * Write/Update in separate tab while testing on web page * Toggle horizontal/vertical split view in edit mode * Toggle full screen in edit mode * Choose whether to run in all frames * Manage chrome.cookies API via window wrapper functions