Develop a tool to inject my js script permanently to my website source code from browser without server access

Hello Let's explore the requirement and kindly let us know if you would like us to share our skills & experiences with previous development. Thanks and Regards Audri

Hello! I have 7 years of programming background. I know php, mysql and I've previously built many wordpress websites. I'm currently building a portfolio here, so the price is minimum.

I place bid to tell you that it is not possible. If you infect website with javascript it will only be infected for your browser be Javascript is NOT a Server-side scripting language.