How do I load a screenshot?

Take the screenshot, then press Ctrl+V on this page, press "Paste from clipboard", drop the image on the drop zone, or choose a file. Images with a side longer than 4,000 pixels are scaled down to 4,000 pixels. Press "New image" to start over with another one.

Is the text I hide really gone?

Yes. "Pixelate" and "Blur" overwrite the pixels in the image you download or copy, so nothing underneath is stored in the file. Pixelate replaces each block with its average color and is the safest choice for text. Cover the whole area, and check the result before you share it. You can still undo in this tab until you close it.

Which tools are there and what are the shortcuts?

Arrow (A), Rectangle (R), Ellipse (E), Line (L), Pen (P), Text (T), Step number (N), Highlighter (H), Pixelate (X), Blur (B) and Crop (C). Pick a color and a Size, tick "Filled" for solid boxes and ellipses, and hold Shift to snap lines to 45° or draw squares and circles. Ctrl+Z undoes and Ctrl+Y or Ctrl+Shift+Z redoes.

How does cropping work?

Choose Crop, drag over the part you want to keep, then press "Apply crop" or Enter. Marks you already added move with the picture, and "Undo" brings the full image back. Press Esc or "Cancel" to drop the selection.

How do I save or copy the result?

Press "Download PNG" or "Download JPG" to save the image, named like screenshot-annotated-20261007-143015.png, or "Copy to clipboard" to paste it straight into a chat or document. Copying needs a browser that can put images on the clipboard, and the button is hidden if yours cannot.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Are my files uploaded?

No. Your files are opened and processed inside your browser and are not sent to LibraTool. Some tools first download a processing engine or AI model to your browser; that download contains no data of yours.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install. Very large files can be slow or run out of memory on a phone, so use a computer for those.

🖍️

Free Screenshot Annotator

Paste or open a screenshot, add arrows, boxes, text and numbered steps, hide private details with pixelate or blur, then copy or download it.

File size depends on your deviceFiles stay privateNo login requiredFree foreverPaste with Ctrl+VPixelate and blur to hide detailsCopy or download PNG and JPG

Drop a file here, or click to browse

HEIC, HEIF · processed on your device

or press Ctrl+V to paste from your clipboard

Browse files

Or press Ctrl+V on this page to paste a screenshot, or drop an image above.

🔒 Your image stays in this browser tab. It is edited on your device and never uploaded.

How It Works

The page draws your image on a canvas, keeps each mark as a shape so undo is exact, and flattens everything into one image when you save or copy it.

1
Load a screenshot
Press Ctrl+V, press "Paste from clipboard", drop an image or choose a file.
2
Mark it up
Pick a tool such as "Arrow", "Text" or "Step number", choose a color and size, and drag on the image. Use "Undo" and "Redo" freely.
3
Hide private details
Use "Pixelate" or "Blur" over names, numbers or faces. The pixels are replaced, so the hidden detail is not in the saved file.
4
Copy or download
Press "Copy to clipboard", "Download PNG" or "Download JPG". Use "Crop" first to trim the edges.

Your image stays in this browser tab and is never uploaded.

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Free Screenshot Annotator

How It Works

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Blur / Pixelate Image

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Frequently Asked Questions