Reddit Trend Detector is a real-time trend detection system that scans the top 100 subreddits hourly to identify rising keywords and topics. Using frequency analysis and statistical anomaly detection, it alerts you the moment a keyword’s mentions spike 300%+ — giving you a head start before trends hit mainstream awareness.

Who It’s For

• Content creators hunting viral topic ideas
• Marketers identifying emerging brand mentions
• Journalists tracking breaking stories on Reddit
• Researchers studying internet trend diffusion
• Agencies doing early-stage competitive intelligence

What You Get

• Hourly scanning of configurable subreddit list (default: top 100)
• Keyword extraction with stop-word filtering and lemmatization
• Z-score and moving average anomaly detection
• Customizable alert thresholds (default: 300% spike trigger)
• Heatmap visualization showing keyword concentration across subreddits
• Trend timeline tracking with full historical mention data
• Multi-keyword tracking with wildcard and exact match modes
• Discord and email webhook alerts for trending keyword notifications
• Export to CSV and JSON for external analysis
• N-gram analysis for multi-word phrase detection

Tech Stack

Python 3.10+ · PRAW Reddit API · Pydantic · Discord webhooks