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Add arrows, boxes and text to local images, with preview, undo and PNG export.

Select a PNG, JPEG or WebP up to 12 MiB and 16 million pixels.

Export annotations flattened into a PNG, leaving the original unchanged. Not for hiding private information; up to 100 annotations.

Preview and results

After processing is complete, the results will be displayed here.

Instructions for use

  1. Select a local image and wait for its preview.
  2. Choose an arrow, box or text. Drag or click on the image to add it, or enter coordinates.
  3. Review annotations and undo if needed. Export a flattened PNG without overwriting the original.

Input and output examples

Example input
screenshot.png
Example output
annotated.png

These are demo inputs and sample results, and do not mean that your data has been processed.

Calculation basis and reference materials

Input up to 12 MiB and 16 million pixels; up to 100 annotations. For explanatory markup, not privacy redaction. Text uses device fonts. Export flattens layers and leaves the original unchanged.

Content check: · About this site and content description

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