What is fnel?
fnel is lightweight funnel analytics purpose-built for solo founders. Unlike generic analytics tools, it gives you step-level conversion rates and automatic drop-off detection—without complex setup or dashboards to build.
With a single line of code, you can track any funnel: SaaS signup flows, e-commerce checkouts, or lead generation forms. The real-time dashboard shows where users leave and provides smart alerts when a step suddenly underperforms. Built-in A/B testing lets you compare variants by conversion rate, not just vanity metrics.
Setup takes minutes. Install the package, add your API key, and start tracking steps like signup, email verification, or payment. No servers or databases required. Export your data as CSV or JSON at any time.
Start free (up to 5,000 events/month) and upgrade to Pro when you need more volume and advanced analysis. fnel is SSL-secured, GDPR-ready, and privacy-first—you own your data.
How to use fnel
- 1
Install the fnel package via npm or use the JS SDK.
- 2
Initialize with your API key using fnel.init('your-api-key').
- 3
Track funnel steps like signup or payment with fnel.track('step_name').
- 4
View real-time conversion rates and drop-offs on the dashboard.
- 5
Configure smart alerts for sudden drop-offs and run A/B tests.
Key features
Real-time funnel analytics dashboard with step-level conversion tracking
Automatic drop-off detection alerts when steps underperform
A/B test validation by step-level conversion rates
One-line setup: add snippet and see funnels in minutes
Export data as CSV/JSON for further analysis
Use cases
- Track a SaaS signup funnel from landing page to user activation to identify where users drop off.
- Monitor an e-commerce checkout flow (cart to order placed) to fix conversion leaks.
- Validate lead generation funnel performance for agencies, from form submit to booked call.
- Compare A/B test variants on pricing pages to see which converts better at each step.
- Set up drop-off alerts to automatically detect underperforming steps in any funnel.
Best for
Solo foundersIndie hackersSaaS developersE-commerce store ownersAgenciesProduct managers
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Frequently asked questions about fnel
Common questions to help you decide if fnel is right for you.
fnel is built for funnel analytics, not general analytics. It offers step-level conversion rates, automatic drop-off alerts, and one-line setup without complex event schemas.
Yes. Free Starter includes up to 5,000 events/month and 3 funnels. Start free—no credit card required. Upgrade to Pro for more volume.
Add fnel.init('your-api-key'), then instrument steps with fnel.track('step_name'). No servers, no DBs, no dashboards to wire up. Most founders see their first funnel in ~5 minutes.
Any step in your flow: SaaS signup (landing → signup → email verification → onboarding), e-commerce checkout (cart → shipping → payment → order placed), or lead-gen (form → qualify → book call). Live conversion and drop-off at each step.
Yes. See step-level conversion rates and sudden drop-off alerts so you can prioritize fixes. Customers report 12-32% lifts after fixing a few high-leak steps.