Why tracking beats a one-time calculation
A single net worth calculation is a snapshot — useful, but it can't show you whether you're actually gaining ground. Update your numbers here once a month (or whatever cadence fits) and save each snapshot: the history chart that builds up is the actual signal. A single month's dip from a market pullback looks very different plotted against six months of steady saving than it does in isolation.
What "save" actually does
Every time you click "Save today's numbers," this page writes one entry — timestamp, net worth, and your full asset/liability breakdown — to your browser's local storage. Nothing is sent anywhere; there's no account, no server, and no way for anyone but you (on this device, in this browser) to see it. That also means clearing your browser data erases it, which is exactly why the Export button exists: download a backup file whenever you want a copy you control, and Import it back later — on this device or a new one — to restore your full history in one step.
Projecting years ahead from where you are today
Once your net worth is positive, the calculator's What-If projection lets you see where a given monthly savings rate and growth assumption would take you in 5, 10, or 20 years — the same compounding math used across every growth calculator on this site, not a separate estimate. It's meant as a directional planning tool alongside your tracked history, not a guarantee of any specific outcome; markets don't compound in a straight line even when the long-run average does.
Frequently asked questions
How often should I update my net worth tracker?
Monthly is the common rhythm — frequent enough to see real progress and catch problems early, infrequent enough that day-to-day market noise in your investment accounts doesn't drown out the trend. Checking daily or weekly mostly just adds stress from short-term volatility that has nothing to do with your actual financial trajectory.
Is my net worth tracker data private?
Yes — everything you save is stored in your browser's local storage only. It's never transmitted to a server, we have no way to see it, and it's tied to this browser on this device. Clearing your browser data erases it, so use the Export option to download a backup file you control if you want to keep one or move it to another device.
What happens to my history if I clear my browser data?
It's gone — local storage is tied to your browser, and clearing site data (or using a different browser or device) means your saved history won't be there. Export a backup periodically if you want a copy you control outside the browser; importing that backup file later restores your full history in one step.
Can I track net worth for a household with two people?
The tracker itself doesn't distinguish between individual and household figures — enter combined numbers if that's what you want to track. Just be consistent between updates (always combined, or always individual) so your history line reflects a real trend rather than a mix of the two.