Patch

Patch reads the web the way you do. When a page shows a measurement in units you don’t think in, Patch adds the conversion inline — right there on the page, while you browse — so you never have to stop and look it up.

• See conversions inline on the page, as you read.
• Full control over which conversions run, and how they look.
• Built-in profiles like metric ↔ imperial, ready out of the box.
• Covers length, area, volume, mass, temperature, time, speed, pressure and angle.
• Safe by design — it adds to the page without ever breaking it.

Sensible defaults get you going immediately; the configuration is there when you want to make it yours.

A small tool for meeting the world halfway — a place where understanding is made a little easier.