Batch HEIC to ICO
Convert HEIC to Windows ICO favicon icons
Drop HEIC files or folder here
Click to browse — supports .heic, .heif, .hif
Tips
HEIC — iPhone format. Half the size of JPG, but limited support.
ICO — Windows icon format. Multi-size favicons in one file.
Privacy — Your files stay on your device. The browser handles the conversion locally.
Batch — Drop a folder or pick multiple files. Each HEIC becomes its own ICO file.
How to Convert HEIC to ICO
Drop your HEIC files
Drag photos from your iPhone or computer, or click to browse. We accept multiple files at once.
Pick icon sizes
Choose which sizes to include. The default set covers most favicons and Windows icons.
Convert and download ICO
Each HEIC is decoded locally in your browser. Download one ICO file ready for a favicon or Windows icon.
About HEIC to ICO
A favicon or app icon has to stay sharp at 16×16 pixels in a browser tab and at 256×256 on a high-DPI desktop. HEIC cannot do that on its own. ICO is the container format that packs several bitmap sizes into one file, so the operating system or browser picks the best size automatically.
This tool converts HEIC files to ICO directly in your browser. HEIC is the default photo format on iPhone and iPad, which makes this a handy way to turn a photo into an icon. The conversion runs locally using WebAssembly and the Canvas API; your images are not uploaded.
It generates the common icon sizes from your source image and skips any larger than the source to avoid blurry upscaling. You can also pick which sizes to include. The result is a single ICO file ready for a favicon or Windows project. We do not add watermarks or impose usage limits.
Frequently Asked Questions
What is HEIC and why do I need to convert it?
HEIC is Apple's default photo format on iPhone and iPad. It saves space but is not supported as an icon format by Windows or most browsers. Converting to ICO gives you a file Windows and browsers can use for favicons and app icons.
What is ICO format?
ICO is the icon format used by Windows and browsers. A single ICO file holds multiple sizes, from 16×16 to 256×256, so the right size is used wherever the icon appears.
Will the image quality be preserved?
Yes. ICO output is lossless. Each selected size is rendered from the original HEIC, so edges stay clean. Sizes larger than your source are skipped rather than upscaled, which would add blur.
Which sizes should I pick?
The default covers the common sizes: 16, 24, 32, 48, 64, 128, and 256 pixels. For a basic favicon, 32 and 48 are usually enough. For a Windows app icon, keep the larger sizes too.
Is there a file size limit?
There is no hard limit. Since processing runs locally in your browser, the practical limit depends on your device's memory. Most HEIC photos from iPhones convert quickly.
Do I need to sign up or pay?
No. There are no fees, no subscriptions, and no watermarks. Every feature is free and unlimited.
Is my photo data safe?
Yes. Everything is processed in your browser with WebAssembly. We do not upload, store, or log your photos.
More blog posts to read
What Is HEIC? A Technical Deep Dive into File Signatures, Detection, and Conversion
Deep Dives
HEIC Format Complete Guide: What iPhone Users Need to Know
Tutorials