Image to ICO / Favicon Generator
Convert a PNG or JPG into a multi-size .ico favicon (16, 32, 48, 64, 128, 256px) right in your browser, ready to drop into any site.
Drag & drop a PNG or JPG image, or click to browse
A square source image (e.g. 512x512) gives the sharpest favicon. Nothing is uploaded.
Every website needs a favicon.ico — but Windows and older browsers expect a single .ico file containing several sizes bundled together, not just one PNG. This Image to ICO / Favicon Generator takes a PNG or JPG, resizes it to standard icon dimensions from 16 through 256 pixels, and packs them into one properly formatted .ico file, all inside your browser.
There's no design software or command-line tool required — drop in a logo or app icon, pick which sizes to include, and download a favicon.ico ready to drop straight into your site's public folder.
How to use the Favicon Generator
- 1
Upload your source image
Drag a PNG or JPG onto the upload area. A square image (like a 512x512 logo) produces the cleanest result, since non-square sources get stretched to fit.
- 2
Choose your sizes
Toggle any of the six standard icon sizes — 16, 32, 48, 64, 128, and 256 pixels — on or off depending on where the favicon will be used.
- 3
Generate the .ico
Click Generate .ico to resize your image at every selected size and pack them into a single icon file.
- 4
Preview each size
Check the individual size previews to make sure fine details are still legible at 16x16, the smallest and most demanding size.
- 5
Download favicon.ico
Click Download favicon.ico to save the finished multi-size icon file, ready to reference from your HTML.
- 6
Add it to your site
Place the downloaded file in your project's public folder as favicon.ico, or reference it explicitly with a link rel="icon" tag pointing at /favicon.ico.
Why convert in your browser instead of uploading to a server?
Your logo never leaves your browser
Uploading a brand asset to a random converter site means trusting that service with your logo file indefinitely. Local generation resizes and packages the icon using only the Canvas API, so the source image never crosses the network.
No arbitrary size restrictions
Some online favicon generators only offer one or two sizes on the free tier. Here, all six standard sizes — 16 through 256 pixels — are available with no upsell.
Instant regeneration while you iterate
Tweaking a logo and want to see how it looks as a favicon? Because there's no upload step, you can regenerate the .ico as many times as you like in seconds.
A correctly formatted, standards-compliant file
The generator writes a real ICONDIR-based .ico container with embedded PNG image data per size — the same structure produced by professional icon tools — so it works correctly across browsers and operating systems.
Frequently asked questions
Which sizes should I actually include?+
16x16 and 32x32 cover browser tabs and bookmarks, 48x48 is used by some Windows contexts, and 64-256px sizes cover high-DPI displays and desktop shortcuts. Including all six keeps you covered everywhere.
Why does my icon look blurry at 16x16?+
Small icon sizes leave very little room for detail — logos with fine text or thin lines often need a simplified version for the smallest sizes. Check the 16px preview specifically before downloading.
Can I use a JPG as the source image?+
Yes, though PNG is recommended if your logo has transparency, since JPG doesn't support an alpha channel and transparent areas will be filled with white.
Where do I put the downloaded favicon.ico file?+
Most frameworks, including Next.js, automatically serve a file named favicon.ico placed in the public or app directory. Alternatively, reference it explicitly with a link tag in your HTML head.
Does this generate modern PNG favicons too, like apple-touch-icon?+
This tool focuses on the classic multi-size .ico format. You can also download any individual size as a standalone PNG from the previews section to use for apple-touch-icon or other modern favicon tags.
Is my source image resized proportionally?+
No — each selected size is stretched to an exact square to match the .ico specification. For best results, start with a square source image so nothing gets distorted.
A missing or broken favicon is one of those small details that quietly signals an unfinished site — generating a proper multi-size .ico takes under a minute here and needs nothing installed beyond your browser.
Because the whole process — resizing, encoding, and packaging — runs as plain JavaScript, it works identically whether you're on a locked-down work laptop or a personal machine with no design software installed.