Image to ICO
FreeConvert image to ICO favicon format (16x16 to 256x256)
Drop image here or click to browse
Convert image to ICO favicon format (16x16 to 256x256)
About Image to ICO
Every website needs a favicon, that tiny icon in the browser tab, and apps often need ICO files too. This tool turns any image into a proper ICO file at the right sizes, so your site or program looks finished and professional.
Upload a logo or graphic and get an ICO file containing standard icon sizes from 16x16 up to 256x256. Square images with transparency work best. Everything runs in your browser without an account, and your source image is deleted as soon as the icon is ready.
Common uses
- Creating a favicon for a website or web app
- Making an application or shortcut icon in ICO format
- Generating multi-size icons from a single logo
- Replacing a default browser tab icon with your own brand
How to use
- 1
Upload your file
Click the upload area or drag & drop your file. Supports *. Up to 50 MB.
- 2
Adjust settings
Use the options panel to customise the output — quality, format, size and more.
- 3
Click "Process — Image to ICO"
Click the process button. Your file is converted instantly on our secure servers.
- 4
Download your result
Preview and download your converted file. No watermarks, no quality loss, no expiry.
ICO is the standard format for website favicons and Windows icons. Contains multiple sizes in one file.
Why ToolHub?
- 100% Free — no hidden costs, no subscriptions
- No signup or account required
- Works in your browser — no software to install
- Privacy first — files processed and deleted immediately
- Batch conversion — convert multiple files at once
- High quality output — no watermarks, no quality loss
- Supports 30+ input formats including RAW, HEIC, BMP, TGA
- Lightning fast — most conversions complete in under 5 seconds
FAQ
What sizes does the ICO file include?
The tool generates standard favicon sizes ranging from 16x16 up to 256x256 inside a single ICO file.
Should my image be square?
Yes, a square image works best so the icon isn't stretched or cropped awkwardly at small sizes.
Does it keep transparency?
If your source image has a transparent background, that transparency is carried into the ICO file.
What sizes are included in the ICO file?
The generated ICO file includes multiple sizes: 16×16, 32×32, 48×48, 64×64, 128×128, and 256×256 pixels — all the standard favicon sizes.
What is the best source image for a favicon?
Use a square image (equal width and height) at least 256×256 pixels for the best result. SVG or PNG with transparent background works best.
How do I add a favicon to my website?
Place favicon.ico in your website root and add <link rel="icon" href="/favicon.ico"> in your HTML <head> section.
Can I use PNG as a favicon instead of ICO?
Yes — modern browsers support <link rel="icon" href="/favicon.png" type="image/png">. ICO is still recommended for maximum compatibility.
Can I use Image to ICO on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.