🛠️ Free Tools

Micro-tools built with Central Brain data. No backend, no login, no tracking.

Central Brain · 9 cubes · 786 verified quotes · 15 tools

Where do these tools come from?

From the Central Brain: a B2B data bank distilled from 792 videos across 602 channels (4.2 million words). Every claim is verified against the original transcript with an automatic verifier.

786 quotes 96 sources 100 % verificadas 9 cubes 15 tools
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Creative Fatigue Calculator

Are your ads dying? 7 questions to diagnose creative fatigue in Meta Ads.

CUBO-01 · Meta Ads · Creativo y fatiga
Dara Denney · Savannah Sanchez
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Meta Ads Structure Auditor

7 questions about your post-Andromeda campaign structure. CBO, ad sets, creative diversity, targeting.

CUBO-02 · Meta Ads structure & distribution
Heath · Ventre · Charley T
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9-Section Checker

Paste your sales page and check whether it has the 9 sections of the Hawkins sales letter.

CUBO-03 · Direct response copywriting
Hawkins · 9 sections
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Customer Interview Question Generator

Generate questions to uncover your customer's real pain points. Pain Points, JTBD, Voice of Customer.

CUBO-04 · B2B customers & pain points
17hats · Sales Scripter
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Value Metric Calculator

What should you charge as your pricing unit? 5 questions to find your value metric.

CUBO-05 · Pricing psychology
Patrick Campbell · 24.376 empresas
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LinkedIn Engagement Calculator

Does your LinkedIn content hook people? 7 questions about format, hooks, CTA and SSI.

CUBO-06 · Crecimiento en LinkedIn
Jasmin Alic · Richard van der Blom
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X/Twitter Engagement Calculator

Does your X content hook people? 7 questions about threads, replies, Spaces and engagement rate.

CUBO-07 · Organic social · X/Twitter
Justin Welsh · Lara Acosta
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Instagram Engagement Calculator

Does your Instagram content hook people? 7 questions about Reels, carousels, saves and community.

CUBO-07 · Organic social · Instagram
Adam Erhart · Jess Cook
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Facebook Engagement Calculator

Does your Facebook content hook people? 7 questions about Groups, native video, Live and comments.

CUBO-07 · Organic social · Facebook
Adam Erhart · Justin Welsh
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Value Ladder Calculator

Is your value ladder complete? 4 rungs: lead magnet → tripwire → core offer → high ticket.

CUBO-10 · Funnel Strategy
Russell Brunson · Results Funnel
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TOFU/MOFU/BOFU Funnel Checker

Does your funnel cover all 3 stages? 6 questions about traffic, nurturing and closing.

CUBO-10 · Funnel Strategy
Rishul Sethi · MLT Marketerra
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Webinar Funnel Checker

Does your webinar funnel convert? 7 questions based on Amy Porterfield and Jeremy Russell.

CUBO-10 · Funnel Strategy
Amy Porterfield · Funnel Gorgeous
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Content Maturity Calculator

Does your content strategy have foundations? 8 questions across 4 pillars: library, authority, community, virality.

CUBO-07 · Organic social
Adam Erhart · Justin Welsh
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AI Citability Score

Is your content ready to be cited by ChatGPT, Perplexity and Google AI Overviews?

CUBO-08 · SEO · Citabilidad IA y GEO
Ahrefs · Google · Clearscope
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Server Speed Checker

Is your hosting helping or hurting you? 6 questions about TTFB, redirects, AI bots and SSR.

CUBO-09 · Technical SEO
600ms · 800ms · 300ms
RankStudio · Free tools · Built with the Central Brain
Every tool is a single page, no backend, no login, no tracking.
🎁 And the big gift: extracts the truth from YouTube — free citable corpus.
🖨️ To print and pin: 29 free checklists, guides and templates.