SUN to CUR conversion is the process of taking raster image files in the SUN raster format (commonly .sun or .ras), which store uncompressed or run-length encoded pixel data and metadata, and converting them into Windows cursor files (.cur) that package one or more small cursor images and hotspot coordinates. This conversion adapts SUN images to the CUR format's size, color depth, and hotspot requirements so they can be used as mouse cursors on Windows systems.
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Read guide →Drag your .SUN file from your computer or use the browse function.
Confirm .cur as the selected destination format.
Click "Convert" and download your converted .CUR file once ready.
SUN files typically use the image/x-sun-raster MIME type and store raster bitmap data. CUR files use the image/x-icon MIME type but include cursor-specific metadata such as hotspots and alpha transparency. CUR files often incorporate multiple image resolutions encoded using standard bitmap or PNG formats.
The CUR (.CUR) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like SUN.
While specific technical details aren't available here, CUR files generally serve the purpose of storing image effectively within their domain.
Our Online SUN to CUR Converter provides a seamless way to convert SUN image files into CUR format without any software installation. Designed for users needing quick and accurate conversions, this tool supports high-quality output suitable for various applications.
SUN files primarily serve as raster image bitmaps used in certain legacy or specific systems, while CUR files are specialized cursor formats that include hotspot information and transparency. Unlike SUN files, CUR files are optimized for use as mouse pointers in Windows environments.
Keep individual cursor frames small — optimal CUR sizes are usually 16x16 to 48x48 pixels; larger sizes increase file size and may not be supported by all software.
Preserve quality by converting SUN truecolor data to 32-bit CUR with alpha when transparency is needed; if source SUN is paletted, convert to 8-bit or expand to 24/32-bit to avoid palette artifacts.
For batch conversions, prepare SUN files with consistent dimensions or define uniform target sizes to avoid manual resizing per file.
Format limitation: SUN files can contain metadata and uncommon color encodings that may not map perfectly to CUR; complex SUN features (nonstandard compression or uncommon bit depths) may require rasterizing to a common truecolor bitmap first.
This SUN to CUR converter saved me hours of manual work.
John M.
Developer
The conversion quality is excellent and the tool is very user-friendly.
Linda K.
Graphic Designer
Fast and reliable, perfect for quick cursor creation.
Mark S.
IT Specialist
Start your free SUN to CUR conversion now.
Drag your file here to to upload.
Up to 250MB
File size advice: aim for source SUN files under 1–2 MB per image for quick processing; very large SUN rasters should be cropped/resized before cursor conversion.