PNG to ICO converter

Create a real multi-resolution .ico file — for a website favicon, a Windows shortcut or a desktop app — from any PNG, JPG or SVG. Transparency is preserved and you choose exactly which sizes go inside.

How to convert PNG to ICO

1. Choose your PNG (a square image of at least 256 × 256 works best).
2. Tick the sizes you need: 16, 32 and 48 for favicons; add 256 for Windows app icons.
3. Choose PNG encoding (smaller) or BMP (for very old software).
4. Press Download .ico.

Which sizes to include

Windows picks the closest size for each place it shows an icon and scales it otherwise, so including the common sizes keeps it sharp. 256 px is the maximum an ICO entry can store.

Pre-drawn small sizes

Designers often hand-tune the 16 and 32 px versions so lines snap to pixels. Add all your versions at once — for each size, the tool uses the smallest image that is at least that big, so your hand-drawn 16 px art isn't replaced by a blurry downscale of the large logo.

PNG vs. BMP inside an ICO

An ICO file is a small directory of images. Since Windows Vista, entries may be stored as compressed PNG, which is much smaller and is what every browser expects. BMP entries (32-bit with alpha plus a 1-bit mask) are bigger but open in very old programs and some icon editors.

Private by design

Everything runs in your browser — your images are never uploaded, stored or seen by anyone.

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