Image Extract Region
Extract several rectangular regions from one image at once and download them together as a ZIP archive. Enter one region per line as left, top, width and height in pixels, up to 50 regions, and the tool saves each area as its own lossless PNG named after its position. Useful for slicing UI screenshots, cutting sprites, collecting details for documentation and preparing training data.
Frequently asked questions
How do I enter the regions?
Write one region per line as four whole numbers: left, top, width and height in pixels, for example 0, 0, 400, 300. Commas, spaces or semicolons can separate the numbers, and empty lines are ignored.
Where do the coordinates start?
Coordinates are measured from the top-left corner of the image, which is 0, 0. Left grows to the right and top grows downward, the same convention as CSS, design tools and most image editors.
How many regions can I extract at once?
Up to 50 regions per request, entered in at most 4000 characters. Regions may overlap, and each one becomes its own file in the archive. The finished archive may be up to 25 MB.
What happens if a region is outside the image?
Every region must fit completely inside the image, and width and height must be at least 1 pixel. If a line does not fit or is not four whole numbers, the tool names that line so you can correct it.
How are the extracted files named?
Each file is named after your upload, its number in the list and its geometry, for example photo-1-120x40-300x200.png for a 300 by 200 region starting 120 pixels from the left and 40 from the top. With ten or more regions the numbers are zero-padded so the files sort in order.
Is quality preserved?
Yes. Each region is copied pixel for pixel and saved as a lossless PNG, including transparency, so details such as text in screenshots stay perfectly sharp.
How do I find the coordinates of an area?
Most image editors and design tools show the cursor position and selection size in pixels. Browser developer tools do the same for screenshots of web pages. Note the top-left corner and the size of each area you need.
What if my image is very large?
Images larger than 4000 pixels on a side are scaled to fit 4000 pixels before extraction, and the coordinates then refer to that scaled image. Uploads can be up to 5 MB in JPEG, PNG, GIF, WebP, TIFF or AVIF format.
Can I cut a sprite sheet with this tool?
Yes. List the position and size of each sprite and you get every one as a separate PNG with its transparency. For a sheet with equally sized cells, the Image Splitter tool is quicker.
How is this different from Image Crop?
Image Crop returns a single rectangle as an image file. This tool takes a list of rectangles and returns all of them in one ZIP archive, which saves repeated uploads when you need many parts of the same image.