# Free Tool Patterns

Reference patterns for engineering-as-marketing tools, from Chapter 15 of *Traction*.

## Proven Tool Patterns

### Pattern 1: The Grader

**Shape:** User inputs one thing (URL, email, company) → tool evaluates and returns a score.
**Examples:** HubSpot Marketing Grader (URL → marketing score), Crazy Egg (URL → heatmap insights).
**Lead flow:** Show score immediately. Offer email capture for full report or comparison.
**Why it works:** Scores are shareable, benchmarkable, and create curiosity. "Your marketing score is 65" invites comparison.

### Pattern 2: The Analyzer

**Shape:** User inputs data → tool returns insights.
**Examples:** Moz Followerwonk (Twitter handle → follower analysis), Open Site Explorer (URL → backlinks).
**Lead flow:** Show a slice of the analysis free. Gate full data behind email or signup.
**Why it works:** Analysis saves the user hours of work. High perceived value.

### Pattern 3: The Calculator

**Shape:** User inputs variables → tool returns a calculated result.
**Examples:** mortgage calculators, ROI calculators, pricing calculators.
**Lead flow:** Show result immediately. Offer email capture to "save the calculation" or get a customized plan.
**Why it works:** Calculators answer a specific numeric question that's hard to answer without the tool.

### Pattern 4: The Educator (Micro-Site)

**Shape:** Dedicated micro-site on a specific topic with authoritative content.
**Examples:** DuckDuckGo's DontTrack.us (educates about search privacy), HealthCare.gov-style explainers.
**Lead flow:** Educate first, link to product as the solution at the end.
**Why it works:** Educational content ranks in SEO and creates trust before any sales pitch.

### Pattern 5: The Generator

**Shape:** User inputs parameters → tool generates an artifact (logo, slogan, email, card).
**Examples:** Shopify's business name generator, Canva's free design templates.
**Lead flow:** Deliver generated artifact immediately. Upsell to fuller features.
**Why it works:** Generated artifacts feel personal and valuable. Users share them.

### Pattern 6: The Comparator

**Shape:** User inputs multiple options → tool compares them.
**Examples:** price comparison tools, competitor comparison charts.
**Lead flow:** Show comparison. Position your product favorably within the comparison.
**Why it works:** Users are already comparison-shopping. Meeting them at that moment is high intent.

## Conversion Benchmarks

Rough benchmarks from the book's examples and industry reports:

- **First-use to email capture:** 15-35% for unilocked-value tools
- **Email capture to product signup:** 3-10% for well-designed nurture sequences
- **Tool → paying customer:** 0.5-3% overall (depending on product price and fit)

HubSpot Marketing Grader: 3 million+ uses, "large portion" of HubSpot's 50,000+ monthly leads.

## Anti-Patterns in Tool Design

- **Gating value behind email before showing anything** — kills conversion
- **Multi-step forms before the result** — every step loses 20-40% of users
- **Login requirement to see the result** — nukes first-time-use rates
- **Tool that only works with your product** — users feel bait-and-switched
- **Tool that's obviously a marketing trick** — trust destroyed before lead captured
- **Tool without a clear distribution plan** — built and then nobody finds it

## Source

Chapter 15 ("Engineering as Marketing") of *Traction* by Gabriel Weinberg and Justin Mares.