Fast, Private Screenshot Annotation & Redaction
Mark up any screenshot in seconds — add arrows, highlights, numbered steps, and text, hide private details for good, and save it as a PNG or JPEG. Everything stays on your device: no uploads, no sign-up.
Drop an image here, press Ctrl/Cmd+V to paste, or click to choose a file
Works with PNG, JPG, and WebP images, or a SnapMark project you saved earlier
Keeps full image quality Save and keep editing later
Every Markup Tool You Need
Arrows, boxes, circles, lines, a pen, a highlighter, text notes, and numbered steps to walk anyone through anything.
Hide Private Info for Good
Blur or pixelate to soften details, or cover them with a solid block that is permanently removed from the saved image. No one can undo it.
Save or Share in One Click
Download a sharp PNG or a smaller JPG at any size, or copy it straight to your clipboard to paste into a chat or email.