Screenshot Annotator
Draws arrows, boxes, numbered steps and blur patches on a screenshot and exports a flat image.
Arrows, boxes, numbered steps and a crop, drawn onto a screenshot and flattened into one PNG — the things a bug report or a how-to needs, without opening a design tool. It also has a pixelate brush, and it is clear about the difference between that and the blur next to it.
Drop a screenshot
Arrows, boxes, text, step numbers, pixelate and crop — all in your browser.
How to use it
Drop the screenshot
It is drawn to a canvas at full resolution, so text stays as legible as it was.
Pick a tool and drag
Arrows and boxes follow the drag; the step tool drops a numbered circle and counts up on its own.
Crop last
The crop is applied on export, so you can keep adjusting the annotations inside it and clear it if you change your mind.
Common questions
Pixelate or blur for something sensitive?
Pixelate. It removes the pixels and they are not in the export. Blur is a visual effect that can be reversed, and the page says so when you select it.
Can I move an arrow after drawing it?
No — undo removes the last one and you draw it again. Keeping every annotation selectable and draggable is a different tool with a different amount of state; this one is meant to be faster than opening that.
Why is the export always PNG?
Because a screenshot is exactly what JPEG is worst at — hard edges and text ring visibly. A PNG of a screenshot is usually smaller as well.
Feed it from
Pixelate & Mosaic
Applies a mosaic or blur over selected regions of an image and flattens it into the output.
Paint
A scratch canvas built around the clipboard: paste a screenshot with Ctrl+V, draw on it, and Ctrl+C the result straight back out.
PDF Annotator
Adds highlights, notes, shapes and freehand ink, and exports the comment list separately.
Device Mockup
Places a screenshot inside a phone, tablet, laptop or browser frame with a background and shadow.
Next
These accept what this tool produces, so the result can go straight in.
Device Mockup
Places a screenshot inside a phone, tablet, laptop or browser frame with a background and shadow.
Image Cropper
Crops to a freeform or fixed-ratio region and can auto-trim uniform or transparent borders.
Pixelate & Mosaic
Applies a mosaic or blur over selected regions of an image and flattens it into the output.
PNG Compressor
Quantises the palette and rewrites the deflate stream to shrink a PNG without changing its dimensions.
Background Remover
Keys out a flat or single-colour background in OKLab and returns a transparent PNG, with a brush for fixing the edges.
EXIF Remover
Strips camera, GPS and editing metadata from photos while leaving the pixels untouched.