PRE-REQUISITE : INSTALL JAVA 1.8: Visit: https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html to download the JDK. For Windows x64 you may use this link directly: jdk-8u202-windows-x64.exe STEPS TO USE THE APPLICATION: Download the following Jar: BarcodeSimulator JAR file Make sure you have JAVA 1.8 installed in your system. FOR WINDOWS: Double click on the jar file and you are good to go. FOR MAC: open a terminal window at the location of the jar and run java -jar <file_name_of_jar> In Finder, open the folder where the jar is saved. right click on the folder and select "New Terminal at Folder" from the menu. run java -jar <file_name_of_jar> HOW TO SCAN? DEMO: JAVA.DEMO.SHORT.mp4