What size should my source PNG be for a favicon?

For best results, use a square PNG at 256×256 px or larger. The converter will automatically scale it to the standard favicon size. Using a large source image ensures the favicon looks sharp on high-DPI (Retina) displays.

How do I add the favicon.ico to my website?

Place the favicon.ico file in your website's root directory (e.g., /public/favicon.ico in Next.js). Most browsers will find it automatically. You can also explicitly link it in your HTML ` `: ` ` for maximum compatibility.

Can I use a non-square PNG for a favicon?

Yes, but favicon images look best when they are square (equal width and height). If you use a non-square image, the converter will scale it proportionally and the result may have padding or appear distorted in some browsers.

What sizes does the converted ICO file contain?

QuickConvert generates a single-image ICO file at the optimal size for web favicons (up to 256×256 px). For multi-size ICO files with 16×16, 32×32, and larger variants, dedicated favicon generator tools are recommended.

Is PNG or ICO better for favicons?

Both work, but ICO provides the broadest compatibility across all environments including email clients, RSS readers, browser history, and older applications. For modern-only web apps, PNG with a ` ` tag works fine. For maximum reach, ICO is still the safest choice.

Can I generate favicons for multiple brands at once?

Currently QuickConvert processes one file at a time. For batch favicon generation, the tool will need to be used once per image. Batch processing is planned for a future update.

PNG → ICO Converter

Convert PNG to ICO
favicon ready, instantly

Generate a favicon.ico file from any PNG image in seconds. Perfect for websites, web apps, and browser tabs. Free, private, instant — no uploads needed.

Conversion type

Drop your image here, or browse

Supports PNG, WEBP, JPEG — max 10 MB

No signupNo ads100% privateFree forever

What is the ICO format?

ICO is a file format used for storing small icons, most notably as website favicons — the tiny images that appear in browser tabs, bookmarks, and address bars. The format was developed by Microsoft for the Windows operating system and has become the universal standard for web favicons over the past 30 years.

An ICO file is actually a container that can store multiple images at different sizes and color depths within a single file. For modern web favicons, the most common sizes are 16×16, 32×32, and 48×48 pixels. Many ICO files also embed a larger 256×256 image for high-DPI displays and Windows icon usage.

The favicon.ico file is placed at the root of a website (e.g., `https://example.com/favicon.ico`). Browsers automatically look for this file when displaying tabs and bookmarks, even without a `<link>` tag in the HTML. This makes creating a proper ICO favicon an essential part of any web project.

Why convert PNG to ICO?

PNG is the ideal source format for favicon creation. PNG files maintain sharp edges and vibrant colors at any size, making them perfect as the source material for a favicon. Once you have your icon designed as a PNG, converting to ICO is the final step to making it browser-ready.

While modern browsers also accept PNG files directly as favicons (via the `<link rel="icon" type="image/png">` tag), the traditional favicon.ico format still provides the broadest compatibility across all browsers, email clients, bookmark managers, RSS readers, and other applications that display site icons.

Creating a favicon used to require specialized desktop software. With QuickConvert, you can generate a favicon.ico file directly in your browser in one click — from any PNG image, any size. The tool automatically handles the ICO binary format specification.

How to convert png to ico

1
Drop your PNG file into the converter above — ideally a square image (e.g., 512×512 px or 256×256 px).
2
Click the "PNG → ICO" format button to select it.
3
Click "Convert to ICO & Download". Your favicon.ico file downloads instantly.

Key benefits

Instant favicon creation

Go from PNG logo to favicon.ico in one click. No desktop software, no complex steps.

Works in every browser

ICO format is supported universally — from Chrome and Firefox to IE and Safari on every OS.

No size restrictions on input

Use any size PNG as input. The converter automatically scales and crops to the optimal favicon size.

100% free forever

No credits, no watermarks, no paid tiers. Generate unlimited favicons for free.

Common use cases

Website favicons

Every website needs a favicon.ico. Convert your logo or brand mark to ICO format and add it to your site root.

Web app icons

Progressive Web Apps (PWAs) use ICO files among their icon set. Generate your PWA favicon with one click.

Browser shortcuts

When users bookmark or pin a website as a desktop shortcut, the ICO file is used as the desktop icon.

Email client icons

Email clients like Outlook display the sender's website favicon next to their name. A proper ICO makes your brand stand out.

Internal tools & dashboards

Internal web applications and dashboards look more professional and are easier to identify in browser tabs with a custom favicon.

PNG vs ICO

Feature	PNG	ICO
Primary use	General images, design	Website favicons, icons
Multiple sizes in one file	✗ One size per file	✓ Multiple sizes
Browser favicon support	Partial (with `<link>` tag)	✓ Universal, auto-detected
File size	Larger	Very small (icon-sized)
Transparency	✓ Alpha channel	✓ Alpha channel (32-bit)
Best for	Full-size design work	Website & app icons

Ready to convert png to ico?

Scroll up to the converter and drop your file — no signup, no uploads, no waiting. Your file stays on your device.

Start converting

Related converters

WEBP

WEBP → PNG Converter

Transform your WebP images to universally compatible PNG format in seconds. No uploads, no waiting, no signup — drag, drop, and download.

PNG

PNG → JPG Converter

Convert PNG images to JPG and dramatically reduce file size — perfect for web, email, and social media. 100% browser-based, zero uploads.

SVG

SVG → PNG Converter

Convert SVG vector graphics to PNG raster images at high resolution. Export icons, logos, and illustrations as PNG files ready for any platform.

JPG

JPG → PNG Converter

Convert your JPG and JPEG images to high-quality PNG format. Perfect for design work, editing, and any use case that requires lossless quality or transparency support.

FAQ

Convert PNG to ICOfavicon ready, instantly