I want code js for Chosen file from my pc automaic and insert into my web

I am looking for a JavaScript code that will allow me to automatically choose an image file from my computer and insert it into my website. I only require light modifications to the chosen file. I anticipate needing to upload and insert between 1-5 files in total.

Ideal skills and experience for this project include:
- Strong proficiency in JavaScript
- Experience with file uploads and manipulation
- Familiarity with web development and HTML/CSS