Etoolio

Digital Dependency Map

Free digital dependency map. Plot your phone, email and accounts, then see the single point of failure whose loss would cascade, plus any recovery loop with no way back in. Runs in your browser, nothing uploaded.

Map the pieces of your digital life, then mark how you would get back into each account if you were locked out. This tool finds the one loss that would cascade into losing everything, and any recovery loop with no way back in. Nothing is uploaded; your map is saved only on this device.

Add an asset

Start by adding your phone and main email, or load the example map to see how one lost phone can cascade.

The one loss that takes down everything

You do not lose access to your digital life one account at a time. You lose it in a cascade. Your phone holds the 2FA codes for your email, your email resets your bank, your bank app trusts your phone, and round it goes. Lose the wrong single thing and the dominoes fall together. This free tool maps your devices and accounts, then finds the single point of failure whose loss would cascade the furthest, and any recovery loop that would leave you with no way back in. It all runs in your browser, and your map is never uploaded.

How it works

  • Add your assets: your phone, laptop, email, password manager, bank, cloud and social accounts.
  • Link recovery routes: for each account, tick what you would use to get back in if locked out.
  • See the blast radius: the tool ranks each asset by how many others its loss would take down, and flags any recovery loop.

Blast radius: your single point of failure, measured

A single point of failure is one asset that quietly props up many others. For most people it is the phone, because it carries the codes, passwords and recovery texts for nearly everything. The map measures this as a blast radius: how many of your accounts you would lose access to if a given asset were lost, stolen or compromised. Seeing that one device would take down eight accounts is the moment the abstract risk becomes real, and the moment you can actually do something about it.

The recovery loop that locks people out for good

Some lockouts are permanent, and they come from circular dependencies. Your email recovers your other accounts, but its own recovery needs your phone, and your phone's cloud account can only be recovered through your email. Each door is locked by the key behind the next. From a cold lockout there is genuinely no way in. This tool traces those cycles and flags them as critical, because a recovery loop takes minutes to break today and is impossible to fix once it has trapped you.

How to spread out the risk

Resilience is not about having fewer accounts, it is about making sure no single loss can cascade. Give your most important accounts a second, independent way back in that does not run through the same device. Keep off-device backup codes or a printed recovery kit for your email and password manager, stored somewhere safe and offline. In the map, mark an account as having an off-device backup and watch its risk drop, because it can now be recovered on its own, no matter what else you lose.

Private by design, part of FailSafe

A map of your access points is one of the most sensitive things you could ever write down, so this tool is built so that it never leaves your device. Everything runs in your browser, and your map is saved only in your browser's local storage on this device. This is part of FailSafe, tools that help you defend against your own digital fragility: what breaks if you lose a device, miss a deadline, or a single point of failure gives way.

Good to know

Digital Dependency Map, frequently asked questions

What does the digital dependency map do?

It turns the tangle of your devices and accounts into a clear map, then finds the weak points you cannot see in your head. You add your phone, laptop, email, password manager, bank and other accounts, and for each account you tick how you would get back in if locked out. The tool then computes two things: the single point of failure, the one asset whose loss would cascade into losing access to the most others, and any recovery loop, an account whose only routes back in circle round to itself so there is no way in from a cold lockout.

What is a single point of failure in my digital life?

It is one asset that quietly holds up many others. For most people it is their phone: it carries the 2FA codes, the saved passwords and the recovery texts for email, banking, cloud and social, so losing it does not break one thing, it breaks all of them at once. The map measures this as a blast radius, how many of your accounts you would lose access to if a given asset were lost or stolen, and ranks your assets so you can see exactly where the concentration is.

What is a recovery loop?

A recovery loop is a circular dependency that permanently locks people out. The classic version: your email can reset your other accounts, but your email's own recovery sends a code to your phone, and your phone or its cloud account can only be recovered through your email. Lose one and each route to get back in needs the other, so there is no way in. The map detects these cycles and flags them as critical, because from a cold lockout there is genuinely no path back without an off-device backup.

How do I fix a single point of failure?

You spread out your recovery routes so no single loss can cascade. In practice that means giving your most important accounts a second, independent way back in that does not run through the same device, and keeping off-device backup codes or a recovery kit for your email and password manager, stored somewhere safe and offline. In the map, tick the off-device backup box for an account and you will see its risk drop, because that account can now be recovered on its own.

Is my map private?

Yes. The map of your access points is one of the most sensitive things you could write down, so this tool is built so that it never leaves your device. Everything runs in your browser and your map is saved only in your browser's local storage on this device. Nothing is uploaded to a server, and there is no account.

Is this a security audit?

No, it is a fast self-assessment to surface single points of failure and recovery loops, not a comprehensive security review. Its picture is only as accurate as the map you enter, and it focuses on recoverability, what you could still get back into if one asset were lost, rather than on threats like malware or phishing.

Is it free?

Yes, free with no signup, and it runs entirely in your browser.

Keep going

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