BlurShotChrome extension

Blur what you would rather not share.

BlurShot is a Chrome extension that crops any region of a web page with Cmd+Shift+S, blurs or pixelates it on the spot, and saves it. From crop to save, the image never leaves the browser.

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A cropped region open in the editor with a mosaic applied over the parts to hide

Do any of these happen before you hand a screenshot over?

You reopen the image right before sending it, checking with your own eyes for an API key or a customer name

You open an image editor for the sole purpose of hiding something — crop, paint, export

An online blurring tool means uploading the very image you least want to share

A black rectangle hides the value, but it also hides what the field even was

With BlurShot

Crop, hide, save — one continuous move.

Press Cmd+Shift+S, drag a region, and the crop opens straight into the editor. Painting over what should go and downloading the result takes no other app.

REASON

Why it works

01Three ways to select, one per shape you are hiding

A rectangle takes a block of text in one drag, a lasso traces a shape that will not sit in a box, and a brush paints straight over the fiddly parts. You can mix all three within a single image.

An editor where a rectangle, a lasso and a brush each hide a different area

02Change the effect and its strength after the fact

Switching between blur and mosaic, and moving the strength anywhere from 5 to 50, both work after the areas are drawn. Everything already hidden is redrawn together, so nothing has to be undone and painted again.

The toolbar slider changing the strength of an effect already applied

03Image handling stays inside the browser

Cropping, editing and saving all happen inside the browser. There is no networking code at all, so there is no upload, no tracking and no usage collection.

FUNCTION

Key features

Crop a Region With a ShortcutCmd+Shift+S (Ctrl+Shift+S on Windows) dims the page and crops only the region you drag. Esc cancels.

Blur and MosaicBlur dissolves text; mosaic flattens it into blocks. Strength runs 5 to 50, by slider or Shift+Left / Shift+Right.

Rectangle, Lasso and BrushThe rectangle hides the box you drag, the lasso the inside of the shape you trace, the brush the width of the stroke you paint.

Hide or Undo in BulkHiding the whole image and dropping every edit are one click each. Cmd+Z / Ctrl+Z steps back one edit at a time.

Save as PNGSaved as a PNG at the display's real pixels. Closing without saving asks you to confirm first.

Set Your DefaultsPick the starting effect, selection tool and strength in the popup. The next editor you open starts there.

What it asks for, and what happens to the image

Requirements: A Manifest V3 extension, published on the Chrome Web Store.
Permissions used: activeTab, storage and scripting — those three. It does not ask to read every site, nor to see your browsing history.
What runs on your pages: None of the extension's code enters a page until you press the shortcut. Only then does it place the selection overlay on that one tab.
What gets captured: Only the visible part of the tab you are looking at. Nothing below the fold, nothing in a background tab, nothing outside the browser.
Where the image goes: The crop is placed in extension storage once, for the editor to pick up, and is deleted the moment the editor reads it. What stays behind is your effect, selection tool and strength settings.
Network traffic: There is no networking code. Neither the image nor a record of what you did leaves the browser.
Pages it cannot run on: Pages Chrome does not let extensions run on — chrome:// settings screens and extension pages among them — are out of reach.
Price: Free.

Try it

Add it from the Chrome Web Store.

Add from the Chrome Web Store

Asks for activeTab / storage / scripting · The image never leaves the browser · Free