SubDetect

Detects SaaS subscriptions and trials while you browse, then helps track upcoming payments.

SubDetect is your ultimate, privacy-first SaaS subscription and free trial detective. It runs completely locally in your browser, automatically identifying when you sign up for subscriptions or start free trials, acting as an intelligent financial guardian for personal and business expenses. Why use SubDetect? In the world of SaaS, forgetting to cancel a "free trial" before it converts into a paid, recurring bill happens all too often. SubDetect eliminates this leak by catching registrations instantly and creating automated, system-wide alerts. Key Features: • Hybrid Detection Engine: Smart DOM and URL heuristics analyze checkout workflows (including Stripe, Paddle, Chargebee, and LemonSqueezy) to spot monthly/yearly subscriptions and free trials instantly. • Privacy-First / Zero-Data Leak: SubDetect operates strictly locally. It NEVER captures, reads, or transmits credit card numbers, passwords, or personal details. It only analyzes public layout cues and pricing text. • Contextual Non-Intrusive Toast UI: When a subscription pattern is identified, a clean, modern toast notification slides in via Shadow DOM, allowing you to track it with one click or dismiss it immediately. • Premium Analytics Dashboard: Monitor your "Monthly Burn Rate" and yearly projected spend inside a sleek, dark-mode/light-mode UI. Sort subscriptions by cost, name, or renewal date. • Automated Desktop Alerts: Built-in daily background workers notify you 3 days before a trial expires and 1 day before a subscription renews via system push notifications. • Quick Cancel Workflow: Direct links back to billing portals let you execute a one-click manual termination before your card gets charged. • Data Portability: Export your entire tracking manifest anytime to a clean CSV file. Take control of your recurring SaaS costs. Install SubDetect today and stop unwanted auto-renewals permanently!