Instantly find the differences between two blocks of text. Works with plain text, code, json, yaml, html, css, markdown, and more.

SubSignal is an AI-powered Reddit monitoring and sales lead generation tool that helps brands, marketers, and founders turn the world's largest discussion platform into a growth channel. Reddit drives billions of high-intent conversations every month — about products people want to buy, tools they're comparing, and brands they trust or distrust. SubSignal scans every subreddit 24/7 so you never miss a mention, a buying signal, or a reputation risk. With real-time Reddit alerts, you'll know the moment someone mentions your brand, your competitors, or your product category. Our AI lead generation engine goes further: it identifies posts and comments from users actively looking for a solution like yours, ranks them by purchase intent, and helps you craft authentic, on-brand replies — so you reach prospects before your competition does. SubSignal also includes built-in shill account and fake review detection, using behavioral analysis to flag suspicious accounts, coordinated promotion, and