Free tools

Small, useful tools for the questions you didn't want to research yourself.

Free utilities I wished existed, built when an existing one was too noisy, too gated, or too slow.
No accounts, no clutter, no upsells — just useful output.

  1. Email & DNS · For founders, marketers and IT helpers

    Email DNS Security Audit

    Available

    Check the email security of any domain in seconds.

    See if a domain is set up correctly to send and receive email safely. Plain-English results, with a readiness score and a short list of things worth fixing.

    • Spoofing protection (SPF, DKIM, DMARC)
    • Inbound mail setup (MX)
    • Transport security (MTA-STS, TLS-RPT)
    Open the tool

  2. Markets & macro · For investors, analysts and the macro-curious

    Global Liquidity Monitor

    Available

    Track global financial conditions from BIS data.

    Live readings on global liquidity from the Bank for International Settlements — six components with their latest values and year-on-year trend, plus a top-line read on whether global financing conditions are expanding or contracting.

    • Top-line expanding / mixed / contracting verdict
    • Latest value and YoY trend per component
    • No account needed
    Open the tool

  3. Markets & macro · For market-curious readers — terms explained in place

    Explore Market Turbulence

    Beta

    See how an uneven activity clock creates bursts of market movement.

    Adjust activity concentration in paired Brownian-clock simulations, compare many realizations, and explore fractal geometry.

    • Activity concentration and optional return dependence
    • Paired returns, clocks, and price paths
    • 100-realization comparison and optional fractal cartoon
    Open the lab

More on the way

Got a tool in mind?

If there's a small utility you wish existed — for your work, your domain, your data, anything you keep doing by hand — tell me what's missing and I'll see if it can be built.

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