How we built a 50-tool free library (and why)

How we built a 50-tool free library (and why)

Two years ago we put 5 free tools on webgrow24.com/tools. Now there are 50. The set gets 30,000 visitors a month and sends us 800 leads a month. Here is the story.

Why we built it

Free tools are the best deal in SEO for a B2B SaaS or agency. Each tool costs 1 to 5 days of an engineer’s time. The return keeps growing for years.

We wanted buyers at the top of the funnel. We did not want to pay for them. Paid ads get dearer every year. SEO gets cheaper if you build for the long tail. Free tools are the long tail.

For the SEO plan behind how tools turn into signups, see the B2B SaaS funnel guide. The tools hub feeds the capture stage of that funnel.

How we started

We began with 5 tools:

• Word counter.
• Character counter.
• Meta tag previewer.
• Color palette generator.
• QR code generator.

These are the most searched tools in our trade. We built them in week 1 and put them live. In 90 days they sat on page 1 for their target searches.

The pattern

Every tool follows the same shape:

• One input (text, URL, color, and so on).
• One process (count, parse, generate, check).
• One output (a result, a preview, a file you can save).
• Save state in localStorage. No login. No tracking.

The tool page is the landing page. The user lands on the tool, uses it, and reads about our work on the same page. The sale happens right there. To understand how the tools funnel connects to our broader B2B SaaS acquisition strategy, see our B2B SaaS funnel guide.

How we scaled

After the first 5 tools proved the shape, we scaled. We added 5 to 10 tools a quarter.

The test for a new tool:

• It matches a service we sell (word counter leads to content work, SEO analyzer leads to SEO work).
• People search for it (we check Google Keyword Planner).
• We can build it in 1 to 5 days.

If a tool passes all three, we build it. If it passes two, we leave it. If it passes one, we skip it.

The engineering

Each tool is a React component. The page loads it in the browser. The page also has SEO meta tags, JSON-LD schema, breadcrumbs, FAQ and other tools.

For the stack choices behind how we build tool pages at scale, see our tech stack guide for SaaS MVPs.

The data model is plain. Each tool has a slug, name, category, tagline, summary, steps, output explained, FAQ and other tools.

The route builds any tool from the data array. A new tool just gets added to it. The route does not change.

The cost

Engineer time per tool is 1 to 5 days. Design time per tool is 0.5 to 1 day.

So one tool costs a fraction of a week’s pay for an engineer in India. Fifty tools are the work of a small team. That team runs two years.

The return

Monthly visitors to /tools: 30,000. Monthly leads for our services: 800.

So each lead costs a fraction of what paid search costs. Free tools are far cheaper.

The older a tool gets, the more links it earns. More links push it up. Higher rank brings more traffic.

First-year return is 2 to 3x. Second-year return is 5 to 10x.

What we learned

Start with 5, not 50. Prove the shape. Then scale.

Build tools that match your service. A word counter for an agency that does not sell content writing is traffic thrown away.

The link building guide covers how to build things that earn links. Tools, calculators and original data pull links on their own.

Ship every quarter. Add 1 to 2 tools a quarter. Drop tools that get no traffic.

Use the same component pattern. Each tool is a React part with a clear input-process-output shape.

Save state in localStorage. No login. No tracking. Respect the user.

The free tools are not the product. The free tools are the funnel. The product is the service.

What is next

We are adding 5 to 10 tools a quarter. The next batch has an AI search test, a domain score check, a backlink gap check, a brief maker and a subject line scorer.

Each one aims at one kind of search. Each one matches a service we sell. Each one costs 1 to 5 days of an engineer’s time.

The library keeps paying. After 5 years we expect 100+ tools, 100,000+ visitors a month and 2,000+ leads a month. The return grows every quarter.