Why does one ICO hold several sizes?
Windows draws icons at different sizes depending on context. Embedding several lets the system choose the sharpest one rather than scaling.
All free toolsImage tool · 100% free
Image to ICO
Convert PNG, JPG or WebP images into Windows ICO icon files, including multi-size icons that hold several resolutions in one file. This is what Windows applications and shortcuts expect. It is free, needs no account, and adds no watermark to your result.
Built for: image to ico
Deleted as soon as you download itFree · fair-use only
Drop image files hereICO output · up to 100 files
Included in this tool
Multi-size ICO16/32/48/64pxPNG/JPG/WebP inputSingle icon output
When you need this
What people use it for.
Creating an application or shortcut icon for Windows
Producing a legacy favicon.ico for a website
Converting a logo into an icon format for desktop software
How it works
What happens to your file.
The source image is resampled to the standard icon resolutions and written into a single ICO container holding each size, so the system can pick the best one for the context.
What this tool includes
Everything you need, without a paywall.
Multi-size ICO
16/32/48/64px
PNG/JPG/WebP input
Single icon output
Questions
Common questions.
Does transparency survive?
Yes, when the source is a PNG or WebP with an alpha channel.
Should I use this or the favicon generator?
Use this for a standalone ICO. Use the Favicon Generator if you want the complete web icon set including the PNG sizes.
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