If the redaction was done correctly (e.g., using a 100% solid black box that actually removes the underlying pixels), no AI can "see" through it because the data is gone. These tools work best on text covered by highlighters or semi-opaque brushes. permanently redact your own screenshots so they can't be unhidden?
This is widely considered the best free tool for this purpose. Open the screenshot in the Snapseed App Tune Image For Black Paint: Brightness to +100, decrease to -100, and max out Highlights For Light/Colored Paint: Use inverse settings, such as decreasing Brightness and increasing iOS/Android Built-in Editor: If the redaction was done correctly (e