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Screenshot Annotator

Pen = free-draw, Rectangle = drag a box, Highlighter = thick + semi-transparent.

About this tool

Screenshot Annotator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.

Category: Image & Creative Media. Browse more Image & Creative Media tools.