I need a small, self-hosted web tool that takes any text I paste into it and instantly returns an encoded version. The core requirement is straightforward: input text on the left, encoded result on the right, updating in real time without reloading the page. Because I have not fixed a single standard yet, please wire it so the user can pick among common schemes—Base64, UTF-8, ASCII, or any additional formats you think make sense—through a simple drop-down. Adding or removing schemes later should be as easy as editing a single array or JSON block. You’re free to choose front-end tech (vanilla JS is fine; React/Vue is welcome if it keeps the bundle light). A minimal back end is optional; if everything can run client-side that’s even better. I will host this on a basic shared Linux server, so no exotic deployment steps. Acceptance criteria • Clean, responsive interface that works on desktop and mobile • Real-time or single-click encoding with clear copy-to-clipboard buttons • Well-commented source so I can extend it later • A short README explaining local setup and how to add new encodings Once delivered, I’ll drop the files onto my server and should see the encoder working immediately.