Black out the token, then put the shot on a background worth posting. One picture, one pass, and nothing leaves your machine unless you send it.
Drop a screenshot here
Or click to choose one. Pasting straight out of ShareX works too.
A screenshot with a key in it never has to leave your machine to get the key covered up. That is the whole reason this page exists.
Drag a box over the picture
Blur and pixelation leave a trace of the original behind, and text has been recovered from both before. For anything that actually matters, a token or an address, use the solid bar: it is the only one that replaces the pixels.
Ground, corners and shadow
A shape only ever adds background on the short side. Nothing is cropped away.
Sign in to send a result straight to your account instead of downloading it.
Drag across the picture to add a box. Click one to select it, then press Delete. Boxes are burnt into the saved file, not laid over it.