Screenshot annotation tool

Annotate Screenshots Where You Capture Them

Mark up a screenshot with arrows, boxes, text and numbered markers the moment you take it. The tools sit next to your selection, so there is no separate editor to open and no file to re-import.

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The annotation tools

Every tool has a one-key shortcut while you annotate. Hover a button to see its key.

ToolKeyUse it to
ArrowAPoint at one specific thing
RectangleRBox a button, field or error message
EllipseCCircle something without hiding it
LineDUnderline text or connect two items
PenPFreehand marks
HighlighterMDraw attention to a line of text
TextTAdd a short label or note
Numbered markerNNumber steps in a guide: 1, 2, 3 and so on
BlurUSoften a region (not secure, see below)
PixelateBBlock out detail (not secure, see below)
Solid redactionXCover private information with an opaque box

Also: undo (Ctrl+Z), redo (Ctrl+Y), clear all, color choices, and the mouse wheel to change line thickness.

Example: a clear bug report in one image

Before: “the button looks wrong”
Button sits too low12
After: a box, an arrow and a note say exactly what and where

A marked-up image answers the questions a plain screenshot leaves open: which element, what is wrong, and in what order to look. Use numbered markers when there are several points, and keep one color for problems so the picture stays readable.

Hide private information the right way

Screenshots often catch names, emails, keys or account numbers. Choose the tool that matches how sure you need to be.

Blur

Not secure

Softens a region. Good for hiding the gist of something, but large or high-contrast text can stay readable.

Pixelate

Not secure

Replaces detail with blocks. Hard to read at a glance, but pixelation of short text can sometimes be reversed or guessed.

Solid redaction

Use this to conceal

Paints an opaque black box into the image you copy or save. Use it for passwords, keys, account numbers and anything you must not leak.

Whichever you use, open the saved image and check it before you send it.

Tips for annotations people understand

  • Use numbers for sequences

    Numbered markers count up automatically (1, 2, 3), and undo renumbers them, so step-by-step guides stay in order.

  • Keep the style consistent

    Pick one color and one thickness for the whole image. Scroll the mouse wheel to change thickness, and open the color button to pick a color.

  • Say less

    A short label such as “Click here” beats a paragraph. Text is a single line, so keep each note short.

What annotation does not do yet

You cannot select, move or delete a single annotation after drawing it; you undo back to it instead. Text is one line per note. Screen recording and share links are not available yet.

Annotate your next screenshot with QuickSnap

Preview builds are unsigned, so your system will show a security warning.

  • Download for WindowsSetup installer (.exe)Windows 10 or 11, 64-bitPreview build, unsigned. Windows may show a SmartScreen warning.
  • Download for MacDisk image installer (.dmg)Apple Silicon Macs onlyPreview build, unsigned and untested. macOS will warn you before opening it.
  • Download for LinuxDebian package (.deb)64-bit, Ubuntu 24.04 or newerPreview build, untested. Screen capture on Wayland may be limited.