MaskBeforeShare

Screenshot redaction

Blur private text in a screenshot locally.

Cover messages, names, email addresses, account details and identifiers before a screenshot leaves your device. Use blackout for information that must not be recoverable by sight.

Sensitive details masked locally before an image is shared.
Free. No signup. No image upload.

The image is processed in your browser. Review every mask, export fresh pixels, and share the cleaned copy instead of the original.

01

Paste or import

Open the complete screenshot rather than cropping too early, so surrounding leaks remain visible.

02

Cover each text region

Draw beyond every line and include labels that could reveal the hidden value by context.

03

Review the exported PNG

Zoom in and check notifications, tabs, filenames, timestamps, QR codes and side panels.

Before sharing

Hide context as well as the main secret.

A covered number can still be identifiable from a visible name, balance, conversation or browser tab.

Can blurred text be reconstructed?

Blurred or pixelated text may remain readable or inferable. Use opaque blackout over the complete region for highly sensitive text, then inspect the exported PNG.

Does the screenshot leave my device?

No. The normal image workflow runs locally in your browser.

What text should I hide?

Names, messages, emails, phone numbers, addresses, IDs, account details, filenames, tabs and notifications may all be sensitive.

Related privacy tasks

Clean the file that matches what you plan to share.