Image to ICO

ICO is the standard format for website favicons and Windows icons. RelahConvert converts any image to ICO entirely inside your browser — no upload, no server, complete privacy. Convert a single image or batch process dozens at once. Choose

How to Convert Images to ICO Without Uploading

Select your images — click "Select Images" or drag and drop any JPG, PNG, or WebP files onto the page. You can convert multiple images at once.
Choose your size — pick a standard ICO size (16×16, 32×32, 48×48, 64×64, 128×128, 256×256) or enter a custom size up to 512×512.
Download your ICO — a single .ico file for one image, or a ZIP file containing all converted ICO files for batch conversions.

The Best Free Batch Image to ICO Converter — No Upload Required

Why Convert an Image to ICO?

How do I make a favicon from an image without uploading?

Use RelahConvert — select your image, choose a size (or enter a custom size), and download your .ico file instantly. Everything runs locally in your browser.

Can I convert multiple images to ICO at once?

Yes — select multiple images and they will all be converted to ICO at your chosen size. Multiple files are downloaded as a ZIP.

Can I use a custom size for my ICO file?

Yes — in addition to the standard sizes (16, 32, 48, 64, 128, 256px), you can enter any custom size up to 512×512 pixels.

What image formats can I convert to ICO?

JPG, PNG and WebP are all supported.

Do you store my images?

Never. All processing happens locally in your browser.

Last updated: 2026-05-24