free-tools
🎯SkillHelps you plan a free tool, like a calculator or website checker, that brings visitors and potential customers to your business. It also helps you judge whether an idea is worth building.
Installation
npx skills add coreyhaines31/marketingskills --skill free-toolsRun it in a terminal; it asks which AI coding tools to install it for (Claude Code, Codex, Cursor and more).
Uses skills.sh · Node.js 22.20+
After installing
Ask for related work and the agent uses it on its own, or call it yourself.
/free-toolsInstall by hand
Copy the whole skill folder from GitHub to the place below. Copying only SKILL.md can leave out files the skill uses.
Open the skill folder →- This project
.claude/skills/free-tools/ - All projects
~/.claude/skills/free-tools/
These paths are for Claude Code. For other tools, the command above puts it in the right place.
SKILL.md
View on GitHub →When the user wants to plan or build a free tool as marketing, or asks whether a tool idea is worth building or which one to pick: calculators, graders, generators, and other interactive tools for leads, SEO, and links. For downloadable lead magnets, see lead-magnets.
Free Tool Strategy (Engineering as Marketing)
You are an expert in engineering-as-marketing strategy. Your goal is to help plan and evaluate free tools that generate leads, attract organic traffic, and build brand awareness.
Initial Assessment
Check for product marketing context first:
If .agents/product-marketing.md exists (or .claude/product-marketing.md, or the legacy product-marketing-context.md filename, in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task.
Before designing a tool strategy, understand:
-
Business Context - What's the core product? Who is the target audience? What problems do they have?
-
Goals - Lead generation? SEO/traffic? Brand awareness? Product education?
-
Resources - Technical capacity to build? Ongoing maintenance bandwidth? Budget for promotion?
Core Principles
"Your product is my marketing opportunity." Bezos said "your margin is my opportunity." The engineering-as-marketing version: take a capability others monetize and build a free version as an acquisition channel. Unsplash gave away the stock photos Getty sold — and Getty acquired it. See references/tool-benchmarks.md for sourced cases and measurement limits.
1. Solve a Real Problem
- Tool must provide genuine value
- Solves a problem your audience actually has
- Useful even without your main product
2. Adjacent to Core Product
- Related to what you sell
- Natural path from tool to product
- Educates on problem you solve
3. Simple and Focused
- Does one thing well
- Low friction to use
- Immediate value
4. Worth the Investment
- Lead value × expected leads > build cost + maintenance
Tool Types Overview
| Type | Examples | Best For |
|---|---|---|
| Calculators | ROI, savings, pricing estimators | Decisions involving numbers |
| Generators | Templates, policies, names | Creating something quickly |
| Analyzers | Website graders, SEO auditors | Evaluating existing work |
| Testers | Meta tag preview, speed tests | Checking if something works |
| Libraries | Icon sets, templates, snippets | Reference material |
| Interactive | Tutorials, playgrounds, quizzes | Learning/understanding |
For detailed tool types and examples: See references/tool-types.md
For sourced case examples (Unsplash, HubSpot Website Grader, Buffer, Shopify) and evidence requirements: See references/tool-benchmarks.md
Ideation Framework
Start with Pain Points
-
What problems does your audience Google? - Search query research, common questions
-
What manual processes are tedious? - Spreadsheet tasks, repetitive calculations
-
What do they need before buying your product? - Assessments, planning, comparisons
-
What information do they wish they had? - Data they can't easily access, benchmarks
Validate the Idea
- Search demand: Is there search volume? How competitive?
- Uniqueness: What exists? How can you be 10x better?
- Lead quality: Does this audience match buyers?
- Build feasibility: How complex? Can you scope an MVP?
Lead Capture Strategy
Gating Options
| Approach | Pros | Cons |
|---|---|---|
| Fully gated | Maximum capture | Lower usage |
| Partially gated | Balance of both | Common pattern |
| Ungated + optional | Maximum reach | Lower capture |
| Ungated entirely | Pure SEO/brand | No direct leads |
Lead Capture Best Practices
- Value exchange clear: "Get your full report"
- Minimal friction: Email only
- Show preview of what they'll get
- Optional: Segment by asking one qualifying question
SEO Considerations
Keyword Strategy
Tool landing page: "[thing] calculator", "[thing] generator", "free [tool type]"
Supporting content: "How to [use case]", "What is [concept]"
Link Building
Free tools attract links because:
- Genuinely useful (people reference them)
- Unique (can't link to just any page)
- Shareable (social amplification)
Build vs. Buy
Build Custom
When: Unique concept, core to brand, high strategic value, have dev capacity
Use No-Code Tools
Options: Outgrow, Involve.me, Typeform, Tally, Bubble, Webflow When: Speed to market, limited dev resources, testing concept
Embed Existing
When: Something good exists, white-label available, not core differentiator
MVP Scope
Minimum Viable Tool
- Core functionality only—does the one thing, works reliably
- Essential UX—clear input, obvious output, mobile works
- Basic lead capture—email collection, leads go somewhere useful
What to Skip Initially
Account creation, saving results, advanced features, perfect design, every edge case
Evaluation Scorecard
Rate each factor 1-5:
| Factor | Score |
|---|---|
| Search demand exists | ___ |
| Audience match to buyers | ___ |
| Uniqueness vs. existing | ___ |
| Natural path to product | ___ |
| Build feasibility | ___ |
| Maintenance burden (inverse) | ___ |
| Link-building potential | ___ |
| Share-worthiness | ___ |
25+: Strong candidate | 15-24: Promising | <15: Reconsider
Task-Specific Questions
- What existing tools does your audience use for workarounds?
- How do you currently generate leads?
- What technical resources are available?
- What's the timeline and budget?
Common Pitfalls
- Over-engineering — Shipping a bloated tool before validating demand. Unsplash started as a Tumblr blog with Dropbox links, then invested in a custom site after demand emerged. Scope to one useful job and test it with your audience.
- Poor product integration — A tool with no natural path to your product earns traffic but not pipeline. The best cases surface the product's value (an analyzer can demonstrate the problem your paid product solves).
- Maintenance / security debt — Tools that scrape, call APIs, or take user input rot and become attack surfaces. Budget for upkeep before you build.
- Vanity metrics — Visitors and usage feel good but don't pay. Track leads, qualification rate, and trial/signup conversion — measured in your own funnel.
Related Skills
- lead-magnets: For downloadable content lead magnets (ebooks, checklists, templates)
- cro: For optimizing the tool's landing page
- seo-audit: For SEO-optimizing the tool
- link-building: For promoting the tool to sites that link to resources like it
- analytics: For measuring tool usage
- emails: For nurturing leads from the tool
More from this repository10
Helps you write or rewrite the text on website pages such as homepages, landing pages, and pricing pages. It keeps your own voice, writes only claims you can back up, and avoids phrases that sound like AI.
A skill that finds out why your website does not show up well in Google search and tells you what to fix first. It checks how search engines find your pages, then speed, titles and content.
Acts as a content strategist to plan content that drives traffic and leads, using topic clusters, buyer-stage keyword research and editorial priorities tied to customers and search. Helps decide what to write and why posts are not bringing customers.
Applies psychological principles and mental models to marketing, explaining why buyers behave as they do and how to influence decisions ethically. Covers biases like anchoring, social proof, scarcity, loss aversion and framing, plus strategic thinking models.
Helps brands get cited and recommended in AI-generated answers from Google AI Overviews, ChatGPT, Perplexity, Claude, Gemini and Copilot. Covers AEO and GEO, AI visibility audits, content structure, llms.txt and agent-readable sites.
Edits, tightens and proofreads existing marketing copy without rewriting it from scratch, using a Seven Sweeps framework and an AI-tell check. Requests to fix a single line get a focused point edit to that line only.
Acts as a marketing strategist that draws on a library of 139 marketing ideas to suggest the most relevant growth tactics for a software product based on its stage, budget and goals.
Writes and evaluates ad creative such as headlines, primary text, and variations for Google, Meta, LinkedIn, TikTok, and X, checked against each platform's character limits. It can iterate from performance data, produce grounded static batches, and plan which ads to make next.
Helps create B2B sales collateral that reps actually use, including decks, one-pagers, objection handling, demo scripts, battle cards, proposals and win-loss analysis. It emphasizes scannable, outcome-focused content and claims reps can defend.
Helps run and synthesize customer research, from analyzing transcripts, surveys and reviews to mining Reddit and review sites and running interviews. It extracts jobs to be done, pains, triggers and customer language, and labels each insight with a confidence level.