This is very useful tools for all SEO, SMO and digital marketing expert people; this tool is helpful to open multiple url at a time. It is also used for save you time and work smartly in your office.
You can easily use this tool just copy number of url and paste in text area; but each url paste in new line. After complete these two stage click on url open button, now your all url open in new windows.
Note: Currently this tool is only work on Firefox, but not work on chrome and other web browser.