Snapok
Annotation

Mark it up without leaving the capture.

Draw right on the capture overlay the moment you select a region, or open the full image editor with ⌘E. Every annotation stays an object, so you can move, restyle, or delete it tomorrow.

Download for MacFree · Open source · macOS 14+
Annotation

Six tools, one key each

Rectangle R, ellipse O, arrow A, pen P, mosaic M, text T, and V to select. Sizes on 1 / 2 / 3, or [ and ] to step.

Editable after capture

Annotations are saved with the screenshot. Double-click it in your library and keep editing; changes are written back when you close it.

Real text styling

Pick a font family, a size in image pixels, and bold. Styles survive saving, reopening, and exporting.

Mosaic for anything private

Pixelate a region by hand, or let the on-device masking find phone numbers, emails, ID numbers, and keys for you.

How to annotate a screenshot on Mac

  1. 1Press ⌃⌘A and select a region.
  2. 2Pick a tool from the toolbar or press its key (R, O, A, P, M, T).
  3. 3Draw. Press ⌘Z to undo, Delete to remove the selected annotation.
  4. 4Press ⌘C to copy or ⌘S to save, at the original resolution.

How Snapok compares

Snapok vs SnagitThe cross-platform documentation suite, now subscription-only.Snapok vs CleanShot XThe polished paid all-rounder, with recording and cloud.

Frequently asked questions

Can I edit annotations after I’ve copied the screenshot?

Yes, if auto-save is on. The screenshot and its annotations land in your library; double-click to reopen them in the editor.

Can I zoom in to annotate small details?

Yes. Pinch on the trackpad, use the canvas controls, or ⌘+ / ⌘− and ⌘0 to fit.

Related features

Scrolling screenshotCapture a long web page, chat, or document as one image.Window & UI element captureHover to snap the selection to a window, panel, button, or the menu bar.Backgrounds & framesAdd a background, padding, rounded corners, and a soft shadow.Text recognition (OCR)Copy text out of any screenshot, and search your library by it.Screenshot translationTranslate the text in an image and keep the layout, with your own model.Sensitive info maskingFind and hide phone numbers, emails, ID numbers, and API keys on-device.Screenshot libraryEvery capture saved with its annotations, grouped by day, searchable.Color picker & magnifierCopy any on-screen color as HEX or RGB while you capture.

Try Snapok free on your Mac.

Free and open source. macOS 14 or later, Apple Silicon and Intel.

Download for MacAll features