How to make get a multi size ico file

Question

I simply want to have an  ico file that has multiple sizes of the icon image contained within it   I d like it for use in a cross-platform desktop application  so that  e g  on Windows  the 16x16 size is used for the app s top bar but a 32x32 size version is used when the various open apps are shown when using Alt-Tab    Once I have that  ico file  I know how to use it within my widget toolkit to get this effect  but I don t know how to get it   What process should I use to make such a file

User · Answer

What i do is to prepare a 512x512 PNG  the Alpha Channel is good for rounded corners or drop shadows  then I upload it to this site http   convertico com   and for free then it returns me a 6 sizes  ico file with 256x256  128x128  64x64  48x48  32x32 and 16x16 sizes

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icon sushi  is a portable utility that can create multiple icon ico file for free   Drag  amp  drop the different icon sizes  select them all and choose file -  create multiple icon   You can download if from http   www towofu net soft e-aicon php

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The excellent  free trial  IcoFX allows you to create and edit icons  including multiple sizes up to 256x256  PNG compression  and transparency  I highly recommend it over most of the alternates   Get your copy here  http   icofx ro    It supports Windows XP onwards    Windows automatically chooses the proper icon from the file  depending on where it is to be displayed  For more information on icon design and the sizes bit depths you should include  see these references    Icons  Windows Aero  Creating Windows XP Icons

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Fresh answer 2018   Step 1 Launch Microsoft Paint  Not Paint Net but plain Paint  Step 2 Open the image you want to convert to icon format by clicking the    Paint    toolbar tab and selecting    Open      Step 3 Click the    Paint    tab  highlight the    Save As    option and select the    BMP picture    option  As 256-colored  There is a dropdown list   Step 4 You have to open it in Paint net now  Enter a file name for the icon and type     ico     without quotations  as the file extension  Select your preferred output folder for the icon and click    Save     still in bmp type    exposing  auto definition in saving parameters window   This is a solution for those WHO DOESN T WANT THE THIRD PARTY APPS TO GAIN PERMISSIONS ON THEIR COMP  I use this simple way to create custom icons for folders on my desktop or documents

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I found an app for Mac OSX called ICOBundle that allows you to easily drop a selection of ico files in different sizes onto the ICOBundle app  prompts you for a folder destination and file name  and it creates the multi-icon  ico file    http   www google com search client safari amp rls en amp q Mac OSX ICOBundle amp ie UTF-8 amp oe UTF-8 http   www telegraphics com au sw info icobundle html   Now if it were only possible to mix-in an animated gif version into that one file it d be a complete icon set  sadly not possible and requires a separate file and code snippet

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ImageMagick  the free and open source image manipulation toolkit  can easily do this   Note  Since ImageMagick 7  the CLI has changed slightly  you need to add magick in front of any commands   magick convert icon-16 png icon-32 png icon-64 png icon-128 png icon ico   See also http   www imagemagick org Usage thumbnails  favicon  that has the example   magick convert image png -bordercolor white -border 0                -clone 0 -resize 16x16                   -clone 0 -resize 32x32                   -clone 0 -resize 48x48                   -clone 0 -resize 64x64                -delete 0 -alpha off -colors 256 favicon ico   There is also now the shorter   magick convert image png -define icon auto-resize  256 128 96 64 48 32 16  favicon ico

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Visual Studio Resource Editor  free as VS 2013 Community edition  can import PNG  and other formats  and export ICO

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This can be done for free using GIMP   It uses the ability of GIMP to have each layer a different size   I created the following layers sized correctly     256x256 will be saved as 32bpp 8bit alpha 48x48 will be saved as 32bpp 8bit alpha 48x48  will be saved as 8bpp 1bit alpha 32x32  will be saved as 32bpp 8bit alpha 32x32  will be saved as 8bpp 1bit alpha 32x32  will be saved as 4bpp 1bit alpha 16x16  will be saved as 32bpp 8bit alpha 16x16  will be saved as 8bpp 1bit alpha 16x16  will be saved as 4bpp 1bit alpha   Notes   You may need to check other resources to confirm to yourself that this is a sensible list  of resolutions and colour depths  Make sure you use transparency round the outside of your image  and anti-aliased edges  You should see the grey checkerboard effect round the outside of your layers to indicate they are transparent The 16x16 icons will need to be heavily edited by hand using a 1 pixel wide pencil and the eyedropper tool to make them look any good  Do not change colour depth   Mode in GIMP  Leave it as RGB You change the colour depths when you save as an  ico - GIMP pops up a special dialog box for changing the colour settings for each layer

[icons] How to make/get a multi size .ico file?

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