Create Windows ICO favicon files from any image with multiple size presets included.
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More about the ICO File Generator
A browser checking a site's root for favicon.ico still expects the older ICO container format specifically, a single file that can actually bundle several image resolutions together inside it so the browser picks whichever size fits best, which is a genuinely different structure from a folder of separate PNG files at different sizes. This tool creates a Windows ICO file from any image with multiple size presets bundled into that one file, producing the specific format a browser's default favicon check still looks for. Useful for generating the classic favicon.ico file a browser checks by default at a site's root, bundling several icon sizes into one file instead of several separate images, or creating a properly formatted ICO file for a Windows application shortcut that expects that exact container format.
Create Windows ICO favicon files from any image with multiple size presets included. The ICO File Generator is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the ICO File Generator?
Open the ICO File Generator on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the ICO File Generator free to use?
Yes. The ICO File Generator is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the ICO File Generator safe and private?
Yes. The ICO File Generator processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What kind of output does the ICO File Generator produce?
The ICO File Generator produces clean, formatted output that you can copy or download with a single click. The output is tailored to the tool's purpose — formatted code, converted data, transformed text, or processed media — and is ready for immediate use in your project or workflow.
Does the ICO File Generator work on mobile devices?
Yes. The ICO File Generator is designed to work on any device with a modern browser, including phones and tablets. The interface adapts to smaller screens, and the core functionality — paste input, transform, copy output — works the same way regardless of your device.
Are my images uploaded anywhere when I use the ICO File Generator?
No. The ICO File Generator processes images fully client-side using the Canvas API. Your files never leave your browser, so you can safely work with personal photos, design mockups, or confidential assets.
What image formats does the ICO File Generator support?
The ICO File Generator works with common web image formats including PNG, JPEG, WebP, GIF, and SVG. The specific operations available depend on the format — lossless formats like PNG preserve quality through transformations, while lossy formats like JPEG may show compression artefacts after re-encoding.
Can I use the ICO File Generator offline?
Once the page has loaded, the ICO File Generator continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.