Convert HEIC to ICO
Convert HEIC files to ICO locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
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How to convert HEIC to ICO
- Drop your .heic files above, or click Upload Files. You can add many files at once.
- ICO is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .ico files as soon as each one finishes.
What to know about HEIC to ICO conversion
- HEIC photos from iPhone and Android are decoded locally; your photos are never uploaded to a server.
- ICO is lossless: it stores the decoded image exactly, which usually makes files larger than the original HEIC, but prevents further quality loss when you edit again.
- Transparency is preserved: ICO supports an alpha channel just like HEIC.
- Images larger than 256×256 pixels are scaled down automatically, the maximum size of a Windows icon.
- ICO is best for website favicons and Windows icons, and opens in browsers, Windows and icon editors.
HEIC vs ICO
| Feature | HEIC (High Efficiency Image Container) | ICO (Windows Icon) |
|---|---|---|
| Compression | lossy | lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Best for | photos taken with iPhones and recent Android phones | website favicons and Windows icons |
| Opens in | Apple devices, and Windows with the HEIF extensions | browsers, Windows and icon editors |
HEIC (High Efficiency Image Container): The default photo format on iPhones and many Android devices, based on the HEVC codec.
ICO (Windows Icon): An image file format for computer icons, widely used as website favicons.
Conversion options
- Resize by width, height or both (aspect ratio is preserved)
- Filters: grayscale, sepia, blur and sharpen
- Custom output file name
Frequently asked questions
Is it safe to convert HEIC to ICO here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several HEIC files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Convert HEIC to other formats
- HEIC to JPG
- HEIC to PNG
- HEIC to PDF
- HEIC to WEBP
- HEIC to GIF
- HEIC to SVG
- HEIC to AVIF
- HEIC to TIFF
- HEIC to BMP
- HEIC to JXL
- HEIC to PSD
- HEIC to TGA
Convert other formats to ICO
- JPG to ICO
- PNG to ICO
- PDF to ICO
- WEBP to ICO
- GIF to ICO
- SVG to ICO
- AVIF to ICO
- TIFF to ICO
- BMP to ICO
- JXL to ICO
- PSD to ICO
- CR2 to ICO
See every HEIC converter and ICO converter, or browse the full converter directory.