Stablecoin Depeg Monitor is a free online tool that watches how far major stablecoins sit from their $1.00 peg — live simulated prices, deviation in percent and basis points, status badges, a price chart, sparklines, and a custom alert threshold. No account, nothing leaves the page.

Controls

Alert threshold %

Any coin whose deviation reaches your threshold is highlighted below and counted in the alert banner. Click a row to chart that coin. The threshold is remembered on this device.

Stablecoins · deviation from $1.00

Coin	Price		Deviation (bps)	Status	Sparkline

Click any row to chart that coin. Prices are simulated — see the demo notice above.

Status thresholds & how the demo feed works

Pegged — |deviation| < 0.10% (10 bps): the coin is holding its peg.
Watch — 0.10% ≤ |deviation| < 0.50% (10–50 bps): drifting, worth keeping an eye on.
Depegged — |deviation| ≥ 0.50% (50 bps): the coin has broken away from $1.00.
The feed — each coin follows a random walk with mean reversion to $1.00, clamped to $0.90–$1.10; small depeg events also occur on their own. "Simulate depeg" forces one on a random coin, which then recovers over the following ticks. No network requests are made.