Capture timers remember your last off/on and seconds choice
Region, window, and full-screen capture controls start with the timer off, then keep your last delay choice for the next shot.
Mark what matters. Capture, annotate, review, summarize, save, and share screenshots without leaving a focused native macOS workflow.
Mac App Store review is complete and OneMark Capture is eligible for distribution.
Capture a region, window, or full screen
Mark what matters with fast annotation tools
Rotate or mirror the image/canvas when orientation needs cleanup
Run OCR / Smart Redaction before sharing
Capture a region, window, or full screen
Mark what matters with fast annotation tools
Rotate or mirror the image/canvas when orientation needs cleanup
Run OCR / Smart Redaction before sharing
Summarize text and edit prompt.md for local AI Handoff
Save editable .onemark projects
Copy, share, drag, export, or compose in Share Studio
Made with the app
Actual flattened Share Studio exports, produced locally from captured screenshots and editable markup.

A flattened Share Studio export combining a captured Xcode window, saved logo placement, stage background, and caption band.

A captured image marked with freehand text and a shape, then composed locally into a product-ready Share Studio output.
Region, window, and full-screen capture controls start with the timer off, then keep your last delay choice for the next shot.
Use arrows, lines, shapes, text, markers, pen, highlighter, blur, redaction, rectangle crop, and ellipse crop without opening a heavier editor.
Image / Canvas transforms rotate or flip the loaded image, expanded canvas, marks, and crop together before you rerun OCR.
Apple Vision OCR keeps text selectable, Text Summary uses Apple Intelligence when available, and the Handoff prompt supports Writing Tools on newer macOS releases.
Copy a flattened PNG, share through macOS, export PNG or JPEG, drag an output file, or create an inspectable local AI Handoff bundle.
Review before output
OneMark Capture scans screenshots locally with Apple Vision OCR. The review pane keeps recognized text selectable, restores saved analysis when the image still matches, summarizes text where Apple Intelligence is available, and applies accepted redactions as editable rectangles.
Local first
OneMark Capture runs as a Dock app and menu bar utility. Open a new blank window with Command-N, use app-local shortcuts, optional global capture, Shortcuts, and Siri actions while keeping capture, review, export, and handoff choices visible.