How do I convert PNG to ICO?

Drop the file on this page. It runs in your browser, so there is no upload, no account and no daily limit.

Why will my software not open a PNG file?

Nothing refuses a PNG. What refuses is a page weight budget or an upload limit, because a photograph stored as PNG is often five to ten times what it needs to be.

Is there anything odd about PNG?

A PNG of flat graphics should stay a PNG. A PNG of a photograph almost never should. Which one you have decides whether converting it is a good idea or a bad one.

Why ICO specifically?

An icon is asked for at whichever size the thing using it wants, so this writes 16, 32, 48 and 256 into one file rather than one size scaled by whatever opens it.

Is the image uploaded?

No. It is decoded and re-encoded by the page, and no request carries it anywhere, which the network panel will show you.

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PNG to ICO

A PNG is a screenshot, a design export, or anything that needed a transparent background

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How this compares with TinyPNG Web Pro

1
Where your PNG came from
A PNG is a screenshot, a design export, or anything that needed a transparent background. Lossless, correct, and larger than it usually needs to be.
2
Why you are converting it
Nothing refuses a PNG. What refuses is a page weight budget or an upload limit, because a photograph stored as PNG is often five to ten times what it needs to be. An icon is asked for at whichever size the thing using it wants, so this writes 16, 32, 48 and 256 into one file rather than one size scaled by whatever opens it.
3
The one thing to know
A PNG of flat graphics should stay a PNG. A PNG of a photograph almost never should. Which one you have decides whether converting it is a good idea or a bad one.

FAQ

How do I convert PNG to ICO?: Drop the file on this page. It runs in your browser, so there is no upload, no account and no daily limit.
Why will my software not open a PNG file?: Nothing refuses a PNG. What refuses is a page weight budget or an upload limit, because a photograph stored as PNG is often five to ten times what it needs to be.
Is there anything odd about PNG?: A PNG of flat graphics should stay a PNG. A PNG of a photograph almost never should. Which one you have decides whether converting it is a good idea or a bad one.
Why ICO specifically?: An icon is asked for at whichever size the thing using it wants, so this writes 16, 32, 48 and 256 into one file rather than one size scaled by whatever opens it.
Is the image uploaded?: No. It is decoded and re-encoded by the page, and no request carries it anywhere, which the network panel will show you.

PNG to ICO

Where your PNG came from

Why you are converting it

The one thing to know

FAQ

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