You know that moment when you realize you've been following someone on Instagram for two years, and they've never once followed you back? Yeah. That moment. I wanted a clean, fast way to find every account like that without downloading some sketchy third-party app, handing over my Instagram password to a stranger's server, or paying $9.99/month for something that should take 30 lines of JavaScript. So I built iTrace . What Is iTrace? iTrace is an open-source Instagram followback checker. You point it at your account, it compares who you follow vs. who follows you, and gives you a clean list of everyone not following back, with a built-in search and one-click unfollow. No login. No password. No backend server storing your data. Just you, your browser, and a script.…