Miscellaneous

QR-Code generator 
 Very customizable QR-Code generator that does not bother you with buying customization options: 
 https://mini-qr-code-generator.vercel.app/   
 Command line for 7-zip 
 If you want to compress something with the 7-zip CLI, but you need to change certain settings: 
 https://axelstudios.github.io/7z/#!/ 
 Creating photo collages 
 Completely free and does not annoy you with buying something: 
 https://gandr.io/