Free Fogg Behavior Model Analyzer
Diagnose why your users aren't converting using the Fogg Behavior Model. Evaluate Motivation, Ability, and Prompts to get actionable UX solutions — free, no signup.
What this tool does
Diagnose why a target user behavior isn't happening using Dr BJ Fogg's Behavior Model: Behavior = Motivation × Ability × Prompt. If any of the three is missing or below threshold, the behavior doesn't occur.
Inputs
- Target behavior to diagnose
- User motivation level for the behavior
- User ability — how easy is it to perform
- Prompt strength — is there a clear trigger
Outputs
- Diagnosis of which element (Motivation, Ability, or Prompt) is the blocker
- Position on the Fogg Behavior curve relative to the activation threshold
- Recommended UX or product-led-growth interventions to fix the gap
Frequently asked questions
What is the Fogg Behavior Model?
The Fogg Behavior Model (created by Dr. BJ Fogg) states that Behavior happens when Motivation, Ability, and a Prompt converge at the same moment. If any of these three elements are missing, the behavior will not happen.
Is this behavior analyzer free?
Yes — no signup required. Analyze as many behaviors as you need to find UX and product-led growth opportunities.
How do I increase user ability?
Ability is about simplicity. You can increase it by reducing the time, money, physical effort, or brain cycles required to complete an action. In software, this often means fewer steps, better defaults, or contextual guidance like product tours.