CalcaTools

Favicon Generator

Generate professional favicon packages in seconds. Upload an image to preview, crop, and package all standard sizes in a single download package. Processes 100% locally.

Last updated: June 2026 · Free · No sign-up required

upload_file

Drag & drop your logo image here

or browse files

Frequently Asked Questions

What is a favicon generator?

A favicon generator is a free online tool that converts standard images (such as PNG, JPG, or SVG) into browser-compatible favicon formats (.ico, and multiple PNG sizes) for websites.

What sizes are included in the generated favicon package?

The download package includes standard formats required by modern browsers and operating systems: favicon.ico (containing 16x16, 32x32, and 48x48 sizes), favicon-16x16.png, favicon-32x32.png, apple-touch-icon.png (180x180), and android-chrome icons (192x192 and 512x512).

Is this favicon generator free?

Yes. It requires no signup, features no watermarks, and offers unlimited generations with 100% free downloads.

Are my uploaded images secure?

Yes. Your image is loaded, cropped, and resized directly on your device using HTML5 Canvas APIs inside your browser. No image data is uploaded to any server.

What HTML code should I use to install the favicons?

The tool generates a custom HTML snippet that you can copy and paste into your website's <head> section to link the generated favicon files.

Does this tool support SVG source images?

Yes. Any image format supported by your web browser (including SVG, PNG, JPG, and WebP) can be used as the source file.

Quick reference

SizeUsed for
16×16Browser tab
32×32Taskbar/shortcuts
48×48Windows site icons
180×180Apple touch icon
192/512Android/PWA manifest

Interpretation guide

Design ruleWhy
Bold, simple markDetail vanishes at 16 px
Strong contrastTabs render on light and dark themes
Square source ≥ 512 pxClean downscales at every size

Formula & methodology

Formula: Favicon set = source image center-cropped square → resampled to 16/32/48/180 px

  1. Upload any image (PNG, JPG, SVG) — processing is local; nothing uploads to a server.
  2. The tool square-crops and resamples to the standard favicon sizes.
  3. Download the set and paste the provided <link> tags into your <head>.

Worked example: a 1024 px logo becomes crisp 16/32/48/180 px icons; the 16 px version is the acid test — if the mark is still recognisable there, the favicon works.

Frequently asked questions

What sizes does a favicon need?
Minimum: 16 and 32 px PNG (or one ICO containing both) plus a 180 px apple-touch-icon. PWAs add 192 and 512 px manifest icons. This generator produces the standard set.
ICO or PNG — which format?
Modern browsers happily use PNG with sizes attributes; ICO remains useful as the legacy /favicon.ico fallback some tools still request. Shipping both costs nothing.
What HTML do I add?
In <head>: <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32.png"> (and 16), plus <link rel="apple-touch-icon" href="/apple-touch-icon.png">. The generator prints these ready to paste.
Why does my favicon look blurry?
Usually a non-square or low-res source forced to downscale unevenly. Start from a square image of 512 px or larger and avoid fine detail that can’t survive 16 px.
How do I force browsers to refresh a favicon?
Favicons cache aggressively. Bump the URL (favicon.png?v=2), or clear the browser’s favicon cache; new visitors get the fresh icon immediately either way.