JPG to ICNS - Convert image online
Conversion Results:
| # | Output File | Source File | Action |
|---|
How to convert JPG to ICNS:
1. Click the "Choose Files" button to select multiple files on your computer or click the "URL" button to choose an online file from URL, Google Drive or Dropbox. Image file size can be up to 200M. You can use file analyzer to get source image's detailed information such as image size, resolution, quality and transparent color.
2. Set target image format, image quality and image size. You can use the original image size or select the "Change width and height" option and enter a custom image size. The format is [width]x[height], for example: 1920x1080. The image quality option only works on a few image formats such as JPG, WEBP or AVIF. The value ranges from 1 (lowest image quality and highest compression) to 100 (best quality but least effective compression). If this value is blank, the converter will use the estimated quality of your input image if it can be determined, otherwise 92. The target image format can be JPG, PNG, TIFF, GIF, HEIC, BMP, PS, PSD, WEBP, TGA, DDS, EXR, J2K, PNM, SVG, etc.
3. Click the "Convert Now!" button to start batch conversion. It will automatically retry conversion on another server if one fails, please be patient while converting. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox.
JPG vs ICNS:
| Name | JPG | ICNS |
| Full name | Joint Photographic Experts Group | Apple Icon Image |
| File extension | .jpg, .jpeg, .jpe, .jif, .jfif, .jfi | .icns |
| MIME | image/jpeg | .icns |
| Developed by | Joint Photographic Experts Group | Apple Inc. |
| Type of format | Lossy image format | Icon image format |
| Introduction | JPEG is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality. | The Apple Icon Image format is an icon format used in Apple Inc.'s macOS. It supports icons of 16 x 16, 32 x 32, 48 x 48, 128 x 128, 256 x 256, 512 x 512 points at 1x and 2x scale, with both 1- and 8-bit alpha channels and multiple image states (example: open and closed folders). The fixed-size icons can be scaled by the operating system and displayed at any intermediate size. |
| Technical details | Image files that employ JPEG compression are commonly called "JPEG files", and are stored in variants of the JIF image format. Most image capture devices (such as digital cameras) that output JPEG are actually creating files in the Exif format, the format that the camera industry has standardized on for metadata interchange. | The file format consists of an 8 byte header, followed by any number of icons. Over time the format has been improved and there is support for compression of some parts of the pixel data. |
| Associated programs | Apple Safari, Google Chrome, Mozilla Firefox, Internet Explorer, Adobe Photoshop, Paint Shop Pro, the GIMP, ImageMagick, IrfanView, Pixel image editor, Paint.NET, Xara Photo & Graphic Designer. | Apple Icon Composer, icns Browser, iconutil, Iconfactory, IconBuilder. |
| Sample file | sample.jpg | sample.icns |
| Wikipedia | JPG on Wikipedia | ICNS on Wikipedia |
