fnel

fnel is a lightweight, developer-friendly funnel analytics platform for solo founders, indie hackers, and early-stage SaaS teams that need simple, step-level visibility into user drop-offs and conversion leaks.

Key capabilities include:

• Real-time funnel dashboards that track conversion rates and drop-offs across any custom flow — such as SaaS signups, e-commerce checkout, or lead-generation processes.
• Extremely simple one-line setup: add fnel.init('your-api-key') once, then track steps with fnel.track('step_name'). Lightweight JavaScript SDK with support for React, Vue, Angular, and vanilla JS.
• Smart drop-off alerts that automatically notify you when a funnel step suddenly underperforms.
• Step-level A/B test validation (comparing variants by actual conversion, not vanity metrics) and data export in CSV/JSON format (on paid plans).
• Advanced drop-off analysis with clear insights into where users are leaving.

Pricing: Freemium.

• Free Starter plan: $0/month — up to 5,000 events/month and 3 funnels (no credit card required).
• Pro plan: $12/month or $9.99/month (billed annually, ~17% discount) — up to 100,000 events/month, unlimited funnels, real-time dashboard, advanced analysis, exports, and priority support.
• Lifetime deal: $179 one-time payment (early bird price, limited seats) — includes everything in Pro forever, with lifetime updates and premium support.

Notable for its laser focus on funnels rather than bloated general analytics. It prioritizes speed and simplicity with minimal code, instant insights, and built-in drop-off detection — making it a lightweight alternative to complex tools like Google Analytics or Mixpanel for solo founders and small teams.