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SnapSeal App

A little screenshot studio

Full-page screenshots, without the busywork.

Capture, annotate, redact, compare and download from one browser extension. Every local tool is free.

Free tools. Your images stay with you.

Install SnapSeal App

Choose Chrome or Edge to install SnapSeal. The Firefox store link will be added later.

Chrome Web StoreMicrosoft Edge Add-ons
Your captures stay in local extension history. Protecting an image creates an encrypted copy; the original is unchanged. You choose which files to send.
Quick start

Protect with a password

An image only your password can open.

Encrypt an image, file or note with AES-256-GCM and carry it inside a PNG with noise or a public cover picture. Unlock it in your browser with the password.

  1. 01

    Protect file

    Choose an image and a strong password in the extension. On the website, you can also protect files or text.

  2. 02

    Send it

    Send the downloaded ZIP or PNG as a file. Send the password separately.

  3. 03

    Unlock file

    The recipient unlocks it here, without an account or extension.

Protect fileUnlock fileOn your device. On your terms.

Can I send it as a photo?Experimental recovery after JPEG compression. Resizing is not supported. Sending the original PNG or ZIP as a file is safest.

01 / The toolkit

Everything you need for a clear screenshot

01

Capture the whole page

Save a scrolling page, visible tab, selected element or custom region.

02

Edit and redact

Add arrows, notes and shapes. Hide sensitive details before you send an image.

03

Compare and keep history

Reopen recent captures and compare versions side by side, overlaid or as a diff.

04

Protect with a password

Encrypt an image, file or note with AES-256-GCM and carry it inside a PNG with noise or a public cover picture. Unlock it in your browser with the password.