PCX to ICO conversion is the process of transforming raster images stored in the PCX (PiCture eXchange) format into ICO (Windows icon) files that contain one or more square icon images at specific sizes and color depths. This conversion repackages pixel data and color information into the ICO container so images can be used as application icons, favicons, or system icons on Windows and other platforms.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
WebP has quietly become the default image format of the modern web, delivering 25-35% smaller files than JPG and PNG with universal browser support. This 2026 guide covers current adoption stats, browser compatibility, WordPress integration, conversion workflows, and when to choose WebP over AVIF for optimal Core Web Vitals performance.
Read guide →Not sure whether to save your image as PNG or JPG? This detailed comparison covers compression, transparency, file size, web performance, and real-world use cases so you can pick the right format every time — with conversion links when you need to switch.
Read guide →Learn how to convert HEIC to JPG for maximum compatibility. This guide explains what HEIC is, why iPhones use it, the key differences between HEIC and JPG, and walks through every conversion method including online tools, iPhone settings, Windows, and Mac.
Read guide →Drag your .PCX file from your computer or use the browse function.
Confirm .ico as the selected destination format.
Click "Convert" and download your converted .ICO file once ready.
PCX files use the MIME type image/x-pcx and are typically used in legacy graphic applications and image archives. ICO files have the MIME type image/x-icon and are widely used in Windows operating systems to store application and website icons. PCX uses simple run-length encoding compression, whereas ICO supports storing images in BMP or PNG formats internally.
The ICO (.ICO) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like PCX.
While specific technical details aren't available here, ICO files generally serve the purpose of storing image effectively within their domain.
Our Online PCX to ICO Converter allows you to convert your PCX image files to ICO format instantly. Designed for ease of use and speed, this tool supports high-quality conversions without the need to install any software. Whether you need icons for your applications or websites, converting PCX to ICO has never been simpler.
PCX is an older raster image format primarily used for storing bitmap images with limited compression, while ICO is a specialized format designed for icons that can store multiple resolution images within one file. Unlike PCX, ICO supports transparency and multiple sizes, making it more versatile for user interface design and app icons.
Keep source PCX images square or crop to square before conversion to avoid distortion in icons; common icon sizes are 16, 32, 48, 64 and 128 pixels.
For best visual fidelity, convert 24-bit or high-color PCX images and include a 32-bit ICO entry with alpha transparency for smooth edges.
Optimize icon file size by creating multi-resolution ICOs that include only necessary sizes; avoid embedding very large bitmaps in ICO files to keep download and memory usage low.
Use batch conversion tools if you have many PCX files; process them with consistent color palettes and naming conventions to speed up deployment.
This PCX to ICO converter saved me hours of manual work.
Michael R.
Developer
Fast and reliable conversion with no loss of quality.
Lisa M.
Graphic Designer
Perfect for creating custom icons on the fly.
Jason K.
IT Specialist
Start your free PCX to ICO conversion now.
Drag your file here to to upload.
Up to 250MB
Format limitation: PCX uses indexed palettes or RGB raster data while ICO expects square sizes and specific color depths—some palette remapping or color quantization may be required, which can alter exact colors.