Are my HEIC files uploaded anywhere?

No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.

Is converting HEIC to ICO free?

Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.

Does converting HEIC to ICO lose quality?

ICO is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. Scaled down to icon sizes; detail beyond 256 pixels is discarded.

Do I need to install anything to open ICO files?

No installation is needed for the conversion itself — it runs in the browser you already have. Opening the ICO afterwards needs whatever software normally handles Windows Icon on your device.

HEICtoICO

Convert HEIC to ICO

Up to 3 files at once, 100 with Pro. Mixed formats are fine.

You can convert HEIC to ICO free and without an account: drop the file above and the ICO is ready to download in a second or two. The conversion happens inside your own browser, so the file is never uploaded — it works on Windows, Mac, Linux, iPhone and Android, and keeps working with the network switched off.

What HEIC and ICO are for

What an iPhone saves photos as. Half the size of JPG, and awkward everywhere outside Apple.

Icon container holding several sizes in one file. Still what browsers expect as a favicon.

How to convert HEIC to ICO

Drop your HEIC file onto this page, or click to pick one.
Choose ICO as the target. The conversion runs inside your browser — the file is never uploaded.
Download the finished ICO file.

HEIC vs ICO: what changes

HEIC compared with ICO
	HEIC	ICO
Full name	High Efficiency Image Container	Windows Icon
File extension	.heic	.ico
Media type	image/heic	image/x-icon
Compression	Lossy — file size is bought with quality	Lossless — nothing is discarded

Quality: Some quality is given up for a smaller file. At the default setting the difference is hard to see.
Where it runs: This conversion runs inside your browser. Your file is never uploaded, and it works with the network disconnected.
What can be lost: Scaled down to icon sizes; detail beyond 256 pixels is discarded.

HEIC to ICO: common questions

Are my HEIC files uploaded anywhere?: No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.
Is converting HEIC to ICO free?: Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.
Does converting HEIC to ICO lose quality?: ICO is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. Scaled down to icon sizes; detail beyond 256 pixels is discarded.
Do I need to install anything to open ICO files?: No installation is needed for the conversion itself — it runs in the browser you already have. Opening the ICO afterwards needs whatever software normally handles Windows Icon on your device.