Gabriel Mangabeira — Mangabeira.net

Tools | Gabriel Mangabeira

Free tools and calculators for Web3, DeFi, and tokenomics growth.

Tools

Interactive GPTs and graders for fast, practical insights.

  • DeFi Tokenomics Simulator (5-year) — Project token supply, demand, and price. Free, no signup.
  • Growth Experiments Framework (Growth Tool) — Track, analyze, and learn from your growth experiments.
  • Web3 ROAST (Crypto CRO Tool) — Actionable CRO insights tailored for crypto projects.
  • Token Health Scan (Crypto Risk Tool) — Scan crypto projects and uncover critical risks before scaling.
  • Shopify Grader (E-commerce Tool) — Benchmark and optimize your e-commerce store for conversions.
  • Onchain Attribution Kit — Connect UTM campaigns to wallet activity. See which channels produce wallets that actually transact.

Tools Built From the Work

I built each of these tools while doing Web3 growth work for real protocols. They started as internal scripts to answer one question fast: is this tokenomics model going to survive year two, does this landing page convert, is this project sitting on a critical risk nobody flagged. I turned the useful ones into free tools.

Six are live right now. The Tokenomics Simulator models emission schedules and staking mechanics before you launch. Token Health Scan checks a crypto project for critical risks. Web3 ROAST reviews a site for conversion and CRO issues. The Growth Experiments Framework tracks and analyzes growth experiments over time. The Shopify Grader benchmarks an e-commerce store against what actually moves revenue. The Onchain Attribution Kit connects UTM campaigns to wallet activity, so you can see which channels produce wallets that actually transact.

None of them require a sign-up or a wallet connection. Use what's useful, skip what isn't.

FAQ

Are these tools free?

Yes. All five are free to use, with no trial period and no upsell inside the tool itself.

Do I need to sign up or connect a wallet?

No. None of these tools ask for an account or a wallet connection. You open the tool, enter your inputs, and get your results.

Who are these tools for?

Web3 founders, growth marketers, and operators who need a fast diagnostic instead of a full audit. If you're modeling a token, checking a project for risk, or benchmarking a store, one of these should get you most of the way there.

Do you store my data?

The Tokenomics Simulator runs entirely in your browser and stores nothing on a server. The other tools only use what you submit to generate your results.

What if I need help interpreting the results?

These tools give you a diagnostic, not a strategy. If you want help turning the output into a plan, that's what the Web3 Growth Audit is for.