Can I convert HEIC to ICO on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert HEIC to ICO on your phone or computer without installing an app.

Is there a free HEIC to ICO converter with no sign-up?

Yes, this one. Converting HEIC to ICO on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert HEIC to ICO without losing quality?

Yes. ICO is a lossless format, so your converted file is pixel-for-pixel the same as the HEIC. Any compression artifacts already in the HEIC are carried over, though - converting can't remove them.

Will the transparent background survive converting HEIC to ICO?

Yes. Transparency is supported in both formats and is preserved exactly.

Can I batch convert HEIC to ICO?

Yes. Add up to 30 HEIC files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload HEIC files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

HEIC to ICO Converter

Convert HEIC images to ICO online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your HEIC files onto the converter
2
Press Convert to turn them into ICO
3
Download your ICO images one by one or as a ZIP

HEIC to ICO

Why convert HEIC to ICO?

The main difference: HEIC is a lossy format, while ICO is a lossless format.

Stop losing quality on every save

A HEIC is re-compressed each time you edit and save it, and a little detail goes every time. ICO is lossless: it keeps every pixel exactly as it is, however many times you edit it.

Transparent areas stay transparent

HEIC and ICO both handle transparency, so anything see-through in the original is still see-through after conversion.

Create a favicon or app icon

ICO is the icon format every browser and Windows understands. Convert a square HEIC to get a favicon for your site or an icon for a desktop shortcut.

HEIC vs ICO: what's the difference?

Property	HEIC	ICO
Compression type	Lossy (small files, some detail discarded)	Lossless (exact pixels, larger files)
Transparent background	Yes	Yes
Animation	No	No
Where it opens	Safari only; Windows needs an extension	All browsers as a site icon
Used for	iPhone and iPad photos (saves storage)	Website favicons and Windows icons

What is an HEIC file?

HEIC (High Efficiency Image Container) is the photo format iPhones and iPads have used by default since iOS 11. It's Apple's flavor of the HEIF standard, compressed with the same HEVC technology used for 4K video.

A HEIC photo takes about half the space of a JPG at the same quality and can store extras like Live Photo frames and depth data. The catch is compatibility: Windows, many Android apps and most upload forms can't open it.

How to open an HEIC file

iPhone, iPad and Mac open HEIC natively. On Windows 10 or 11, install the free HEIF Image Extensions (and, on some PCs, the HEVC Video Extensions) from the Microsoft Store. Recent Android phones can view HEIC in their gallery. Anywhere else, convert it to JPG.

Extensions: .heic, .heif
Compression: Lossy (HEVC)
Transparency: Yes
Made by: Apple iPhone and iPad cameras

What is an ICO file?

ICO is the icon format of Microsoft Windows and the classic format for website favicons - the little image in a browser tab. One ICO file can hold several sizes (16 × 16, 32 × 32, 48 × 48 and more), so the icon looks sharp everywhere.

ICO supports transparency, so icons can have rounded or irregular shapes. Modern sites often add PNG and SVG favicons too, but favicon.ico is still the universal fallback.

How to open an ICO file

Windows shows ICO files in File Explorer and opens them in Photos; Mac Preview opens them too. GIMP and online editors can edit them. To make one, convert a square PNG - or use the Favicon Generator for a complete set.

Extension: .ico
Sizes: Several in one file (16-256 px)
Transparency: Yes
Best for: Favicons, Windows icons