27 Sep 2019 create Blob from a typed array and strings let hello = new Uint8Array ( [ 72 , 101 , 108 a dynamically-generated Blob with hello world contents as a file: to download instead of navigating --> < a download = " hello.txt " href  In this tutorial you'll learn how to download files like images, word or PDF If such kind of file is stored in a public accessible folder, you can just create a Image Gallery