Link Building4 min

Building Free Tools and Calculators to Earn Backlinks

Free tools earn backlinks that money cannot buy. Here is why they work and how to build them.

The Link Building Cheat Code

Want to know the single most effective linkable asset type in 2026?

Free tools.

Calculators. Graders. Generators. Analyzers. Checkers.

People use them, love them, and link to them. Constantly.

Why Free Tools Earn Links

Utility. Tools solve problems. When a writer mentions the problem, they link to the solution.

Embeddability. Some tools can be embedded on other sites, each embed generating a backlink.

Shareability. People share useful tools with colleagues. "Hey, check out this free calculator."

Reference-ability. Writers cite tools as resources. "Use this free [tool] to calculate your [metric]."

Examples That Work

  • ROI calculators
  • SEO audit tools (like what we built at SEO Checkup)
  • Industry-specific calculators
  • Assessment or grading tools
  • Template generators
  • Comparison tools

    • The Build vs. Buy Decision

    You don't need to be a developer to create tools. Options:

  • Spreadsheet tools — Google Sheets templates with formulas. Zero development needed.
  • No-code tools — Platforms like Outgrow or Calconic let you build calculators without code.
  • Custom development — For more complex tools. Higher investment, higher payoff.

    • The Promotion Strategy

  • Launch the tool with a blog post explaining the problem it solves
  • Reach out to writers who've covered the topic — using the same outreach templates that work for content promotion
  • Submit to relevant directories and listicles
  • Promote on social media
  • Let organic discovery take over

    • The ROI

    A good free tool can earn hundreds of backlinks over its lifetime. Many from high-authority sites. For SaaS companies especially, this is the foundation of a killer SaaS link building strategy.

    The upfront investment is higher than writing a blog post, but the long-term return is incomparably better. Moz's beginner's guide to link building highlights tools as one of the highest-impact linkable asset types.

    We built SEO Checkup as a free tool with 113 tasks across 4 checklists. It takes 30 seconds to set up. No credit card required. Try it.

    Build something useful. The links will follow.

    Keep reading

    Link Building

    What Are Backlinks and Why Should You Care in 2026?

    6 min

    Link Building

    Why Links Still Matter in 2026 (More Than Ever)

    5 min

    Link Building

    Link Quality vs. Quantity: The Real Answer

    4 min

    SEO Strategy

    The SEO Checklist That Runs Itself (While You Actually Do the Work)

    6 min