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Bitmap Cropper

World's simplest bitmap tool
This is a free and fast online utility that crops BMP (bitmap) images. You can use the configuration options (below) to set the starting point and exact dimensions of the crop, or adjust the selection directly in the preview. Extra options allow you to choose a rectangular or round crop, fill the corners around a circle or oval with any color, and send the result back for another cropping pass. Created by graphics designers from team Browserling.
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A link to this tool, including input, options and all chained tools.
Click here to select an image from your device, press Ctrl+V to use an image from your clipboard, drag and drop a file from desktop, or load an image from any example below.
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Crop Geometry
Pixels from the left edge.
Pixels from the top edge.
Width of the kept area.
Height of the kept area.
Leave a start empty to begin at 0. Leave a size empty to continue to the opposite bitmap edge.
Crop Outline
Use straight edges for a rectangle or square crop.
Use a curved edge for a circle or oval crop.
Fill four corners outside a circular or oval crop with this color.
Crop in Stages
Unlock the "Crop bitmap again" button. It moves the cropped BMP back to the input side for another pass.

What is a Bitmap Cropper?

learn more about this tool
This free online browser-based program crops BMP images by keeping a selected area and removing everything around it. You can move and resize the crop region directly in the input preview. The pixels inside the region become the new BMP, while the content outside it is discarded. For an exact crop, you can enter its position and dimensions in the options. You can create a new rectangular or square BMP, or switch to round mode to produce a circular or oval crop. A round crop leaves four corner areas outside its curved boundary. You can fill these corners with any color by entering a color name, hex code, or RGB value, or by selecting a color from the palette. If a large image is easier to trim in several steps, enable another crop and use the "Crop bitmap again" button to place the current result back in the input editor. Bmp-abulous!

Bitmap Cropper examples

Click to use
Crop the Middle Donut
In this example, we load a BMP with three pastel donut-shaped popsicles and crop out the one in the middle. We place a 145-by-220-pixel rectangular crop at the horizontal position 74 and the vertical position 140. The new BMP contains only the middle donut, while the other two are removed. (Source: Pexels.)
In this example, we load a BMP with three pastel donut-shaped popsicles and crop out the one in the middle. We place a 145-by-220-pixel rectangular crop at the horizontal position 74 and the vertical position 140. The new BMP contains only the middle donut, while the other two are removed. (Source: Pexels.)
In this example, we load a BMP with three pastel donut-shaped popsicles and crop out the one in the middle. We place a 145-by-220-pixel rectangular crop at the horizontal position 74 and the vertical position 140. The new BMP contains only the middle donut, while the other two are removed. (Source: Pexels.)
Required options
These options will be used automatically if you select this example.
Pixels from the left edge.
Pixels from the top edge.
Width of the kept area.
Height of the kept area.
Use straight edges for a rectangle or square crop.
Fill four corners outside a circular or oval crop with this color.
Create a Vertical Dragonfly BMP
In this example, we turn a horizontal dragonfly BMP photo into a vertical one by cropping its sides. We start the crop 116 pixels from the left and set its width to 250 pixels. The top position and height are left empty, so the crop begins at the top and automatically extends to the bottom edge of the bitmap. (Source: Pexels.)
In this example, we turn a horizontal dragonfly BMP photo into a vertical one by cropping its sides. We start the crop 116 pixels from the left and set its width to 250 pixels. The top position and height are left empty, so the crop begins at the top and automatically extends to the bottom edge of the bitmap. (Source: Pexels.)
In this example, we turn a horizontal dragonfly BMP photo into a vertical one by cropping its sides. We start the crop 116 pixels from the left and set its width to 250 pixels. The top position and height are left empty, so the crop begins at the top and automatically extends to the bottom edge of the bitmap. (Source: Pexels.)
Required options
These options will be used automatically if you select this example.
Pixels from the left edge.
Pixels from the top edge.
Width of the kept area.
Height of the kept area.
Use straight edges for a rectangle or square crop.
Fill four corners outside a circular or oval crop with this color.
Create a Round Chick Avatar
In this example, we create a round avatar from a BMP photo of a yellow chick. We position a 260×260 px crop over the chick and select the circular crop mode. Because the width and height are equal, the output shape is a perfect circle rather than an oval. Finally, we fill the four corner areas outside the circle with a soft lavender-blush color. (Source: Pexels.)
In this example, we create a round avatar from a BMP photo of a yellow chick. We position a 260×260 px crop over the chick and select the circular crop mode. Because the width and height are equal, the output shape is a perfect circle rather than an oval. Finally, we fill the four corner areas outside the circle with a soft lavender-blush color. (Source: Pexels.)
In this example, we create a round avatar from a BMP photo of a yellow chick. We position a 260×260 px crop over the chick and select the circular crop mode. Because the width and height are equal, the output shape is a perfect circle rather than an oval. Finally, we fill the four corner areas outside the circle with a soft lavender-blush color. (Source: Pexels.)
Required options
These options will be used automatically if you select this example.
Pixels from the left edge.
Pixels from the top edge.
Width of the kept area.
Height of the kept area.
Use a curved edge for a circle or oval crop.
Fill four corners outside a circular or oval crop with this color.
All bitmap tools
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Base-64 Encode a Bitmap
Quickly convert a BMP file to the base-64 encoding.
Base-64 Decode a Bitmap
Quickly convert base-64 encoding to a BMP file.
Create a Transparent Bitmap
Quickly convert an opaque bitmap to a transparent bitmap.
Change Bitmap Colors
Quickly substitute one color for another in a bitmap.
Convert a Bitmap to Grayscale
Quickly turn a color bitmap into a grayscale bitmap.
Blur a Bitmap
Quickly blur an area of a bitmap.
Sharpen a Bitmap
Quickly sharpen an area of a bitmap.
Pixelate a Bitmap
Quickly pixelate an area of a bitmap.
Draw a Random Bitmap
Quickly create a bitmap file from random, colorful pixels.
Resize a Bitmap
Quickly change the width/height of a bitmap.
Crop a Bitmap
Quickly select a region from a bitmap.
Rotate a Bitmap
Quickly rotate a bitmap by any angle.
Animate Bitmap Sprites
Quickly animate a bitmap sprite sheet.
Coming soon These bitmap tools are on the way
Edit and Draw Bitmaps
Create and edit bitmaps in your browser.
Compress a Bitmap
Make a bitmap smaller in size.
Uncompress a Bitmap
Convert a compressed bitmap to a raw RGB pixel bitmap.
Convert RGB Bitmap to BGR Bitmap
Convert BMP colors in RGB order to BGR order
Convert BGR Bitmap to RGB Bitmap
Convert BMP colors in BGR order to RGB order
Change Bitmap Depth
Change the number of bits per pixel of a bitmap.
Swirl a Bitmap
Create a swirl of any radius in a bitmap.
Make Bitmap Black and White
Reduce all bitmap colors to just black and white.
Merge Bitmaps
Join two or more bitmaps together.
Overlay Bitmaps
Place two or more bitmaps on top of each other.
Split a Bitmap
Split a bitmap into multiple independent bitmaps.
Extract a Bitmap Fragment
Extract one or more selected areas from a bitmap.
Duplicate a Bitmap
Make copies of bitmaps and paste them together.
Skew a Bitmap
Skew a bitmap by an arbitrary angle.
Shift a Bitmap
Shift a bitmap to the left or right.
Add a Border to a Bitmap
Add a border around or inside of a bitmap.
Remove a Border from a Bitmap
Delete a border that surrounds a bitmap.
Flip a Bitmap Vertically
Turn a bitmap upside-down.
Flip a Bitmap Horizontally
Make a mirror copy of a bitmap.
Extract Bitmap Color Palette
Find all colors in a bitmap and extract them.
Convert Bitmap to Byte Array
Create a byte array from a BMP image.
Convert Byte Array to Bitmap
Create a BMP from a byte array.
Convert Bitmap to Webp
Convert a BMP to a Webp.
Convert Webp to Bitmap
Convert a Webp to a BMP.
Convert Bitmap to PNG
Convert a BMP to a PNG.
Convert PNG to Bitmap
Convert a PNG to a BMP
Convert Bitmap to JPEG
Convert a BMP to a JPG.
Convert JPEG to Bitmap
Convert a JPG to a BMP.
Convert Bitmap to BPG
Convert a BMP to a BPG.
Convert BPG to Bitmap
Convert a BPG to a BMP.
Convert GIF to Bitmap
Save GIF frames as BMP images.
Convert BMP to GIF
Convert a bitmap to a single-frame GIF.
Convert Bitmap to Data URI
Create a Data URL scheme of a bitmap.
Convert Data URI to Bitmap
Convert a Data URL scheme back to a bitmap image.
BitBlt Bitmaps
Bit Blit two or more BMPs.
Replace Bitmap Color Index
Put a new color table in a BMP.
Print Bitmap Color Index
Extract the color table of a BMP.
Print Raw Bitmap Pixels
Extract raw RGB pixels from a BMP and print them out as text.
Convert Raw RGB to BMP
Create a bitmap image from raw RGB pixels.
Randomize Bitmap Color Index
Randomly rearrange colors in the BMP color table.
Optimize a Bitmap
Reduce a BMP's memory footprint.
Destroy a BMP
Destroy parts of a bitmap and make it glitchy.
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@browserling
We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling our mission is to make developers' lives easier, so we created this collection of online bitmap tools. Unlike many other tools, we made our tools free, without ads, and with the simplest possible user interface. Our online bitmap tools are actually powered by our programming tools that we created over the last couple of years. Check them out!
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