Crop and rotate an image by exact pixels

Understand the settings

The crop rectangle is defined by its left coordinate, top coordinate, width and height in the loaded image. Coordinates start at zero. A rectangle must fit inside the image: left plus width cannot exceed the original width, and top plus height cannot exceed the original height.

Resizing preserves the crop’s aspect ratio. Rotation is applied afterward, so a 90-degree rotation swaps the output width and height. Horizontal flip is applied before rotation. The preview is scaled to fit the page; that on-screen size does not change the pixel dimensions of the downloaded file.

Browser canvas processing creates a new still image. It does not preserve original EXIF data, ICC profiles, animation or high-bit-depth samples. A transparent image remains transparent in PNG; JPEG needs a background, and this tool uses white. Repeated lossy JPEG/WebP exports can reduce quality.

Step by step

1. Choose a PNG, JPEG or WebP and read its dimensions.
2. Enter the crop rectangle. Set left/top to zero and use full dimensions to keep the whole image.
3. Optionally choose a smaller output width, rotation or flip.
4. Update preview, inspect the result, select the format and quality, then download.

Remove a border

For an 800 × 600 image with a 10-pixel border on every side, use left 10, top 10, width 780 and height 580. To make a smaller copy, set output width 390; the crop scales to 390 × 290 before any rotation.

Limits and what to check

• Files up to 20 MiB and 8 million decoded pixels; output also capped at 8 million pixels.
• PNG output is lossless for the resulting canvas pixels; that does not undo prior lossy compression or preserve the source color pipeline.
• The tool stays in your browser. No image upload is performed.
• Only supported still-image formats are accepted. For a server-side format conversion, use Image Converter.

Troubleshooting