Favicon Downloader & Converter

Download favicons from any website and automatically convert them to multiple sizes (16x16, 32x32, 48x48, 64x64, 128x128, 256x256). This is designed for developers and teams that need standardized favicon sets for multiple domains. [conversation_history:1]

Features

• Automatic favicon discovery from HTML tags, common paths, or Google’s favicon service. [conversation_history:1]
• Multi‑size conversion into any size between 8px and 512px. [conversation_history:1]
• Support for PNG, JPEG, ICO, and SVG favicon formats. [conversation_history:1]
• Batch processing of many URLs with configurable concurrency. [conversation_history:1]
• Downloadable image files stored in the Key‑Value Store. [conversation_history:1]
• Optional base64‑encoded image data in the dataset output. [conversation_history:1]

Quick Start

Basic usage

Use this input when starting a run:

{
  "urls": [
    "https://github.com",
    "https://stackoverflow.com",
    "https://reddit.com"
  ],
  "sizes":[16, 32, 48, 64, 128],
  "outputFormat": "PNG",
  "includeBase64": true,
  "saveToKvStore": true,
  "maxConcurrent": 5
}

This will download each site’s favicon, convert it to the requested sizes, store metadata in the dataset, and save all images into the Key‑Value Store for download. 

### Input Parameters

Parameter	Type	Required	Default	Description
urls	array	Yes	–	List of website URLs to extract favicons from. 
sizes	array	No	[16, 32, 48, 64, 128]	Target square sizes in pixels, between 8 and 512.
outputFormat	string	No	"PNG"	Output format: "PNG", "JPEG", or "ICO". 
includeBase64	boolean	No	true	Include base64 image data in dataset results. 
saveToKvStore	boolean	No	true	Save converted images as files in Key‑Value Store. 
maxConcurrent	integer	No	5	Maximum number of concurrent downloads (1–20). 


### Output Structure
##Dataset
##Each processed URL produces one JSON item in the default dataset. 

{
  "url": "https://github.com",
  "domain": "github.com",
  "success": true,
  "error": null,
  "originalFormat": "SVG",
  "totalSizes": 5,
  "conversions": {
    "original": {
      "size": "32x32",
      "format": "PNG",
      "base64": "iVBORw0KGgoAAAANS...",
      "bytes": 1234,
      "hash": "5d41402abc4b2a76b9719d911017c592"
    },
    "16x16": {
      "size": "16x16",
      "format": "PNG",
      "base64": "iVBORw0KGgoAAAANS...",
      "bytes": 456,
      "hash": "098f6bcd4621d373cade4e832627b4f6"
    }
  }
}

### Key‑Value Store (downloadable files)
## When saveToKvStore is true, every converted image is stored as a separate file.

File naming convention:

text
{domain_sanitized}_{size_label}.{extension}
Dots, slashes, and colons in the domain are replaced with underscores. [conversation_history:1]

size_label is either original or <width>_<height> (for example 16_16 or 128_128). [conversation_history:1]

Examples:

github_com_original.png

github_com_16_16.png

github_com_32_32.png