FollowCheck

FollowCheck is a lightweight web app for comparing two Instagram lists:

• Accounts you follow (A)
• Accounts that follow you (B)

The app highlights:

• Who you follow that does not follow back (A \ B)
• Who follows you that you do not follow back (B \ A)

Getting started

Prerequisites

• Node.js 18+ (for native fetch in the server).

Installation

npm install

If your environment restricts npm registry access, configure it according to your network policy and rerun the install.

Run the app

npm start

Then open http://localhost:3000 in your browser. The server also serves the frontend assets.

Development mode

npm run dev

Runs the server with nodemon for automatic reloads.

Using the app

1. Paste usernames (one per line) into each textarea or upload text files for each list.
2. Click Compare Lists.
3. The results show both sets (A \ B and B \ A). Empty results display a friendly message.

Basic validation prevents empty submissions or malformed payloads.