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PNG to ICO Converter

v1.0.0

Click or drop a PNG file here

Max size: 10 MB

Actions
  • Convert JSON data into TypeScript interfaces for easy integration with your codebase.

  • Convert Markdown files to HTML format for web publishing and sharing.

  • Extract and convert Windows ICO icons to PNG format, preserving transparency and the highest available resolution.

  • Convert JSON data to YAML format for readable configuration and documentation.

  • Convert Markdown files to PDF format for easy sharing and printing.

  • Convert ASP.NET Core appsettings.json files to .env environment variable format. Supports Development and Production presets. Fully client-side.

  • Convert JSON data into Rust structs for easy integration with your codebase.

  • Convert JSON data into JavaScript object declarations with customizable variable names and export options.

  • Convert JSON data into CSV format for easier data analysis and sharing.

  • Convert CSV files to JSON format for easier data manipulation and integration.

  • Convert SVG markup to PNG, JPEG, or WebP images directly in your browser with custom resolution and background.

  • Convert YAML configuration files to JSON format for easier processing and integration.

  • Convert any JSON object or array into a JSON Schema. Supports Draft-07, 2019-09, and 2020-12 with options for required fields, additionalProperties, and format inference.

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  • Convert any time between time zones. Enter a time, date, or Unix timestamp, pick source and target IANA time zones, and instantly see the result in multiple formats. Auto-detects your local timezone.

  • Encode images (PNG, JPG, WebP, SVG, GIF, AVIF) and PDFs to Base64 or decode Base64 strings back to files — fully in-browser.

  • Encode and decode base64 strings or files, commonly used for encoding binary data in text format.

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About PNG to ICO Converter

The PNG to ICO Converter transforms any PNG image into a Windows ICO file — the standard format used for application icons, favicons, and desktop shortcuts.

What is an ICO file?

ICO is a file format used by Windows to store icons. A single ICO file can contain multiple image sizes so the operating system can pick the best resolution for each context — for example, 16×16 for taskbar icons and 256×256 for high-DPI displays.

Common Use Cases

  • Favicon: Place a favicon.ico at the root of your website so browsers show your brand icon in tabs and bookmarks.
  • Windows application icon: Embed an ICO file in your executable so it appears on the desktop and in the taskbar.
  • Desktop shortcut: Assign a custom icon to any Windows shortcut file.

Tips for Best Results

  • Use a square PNG with a transparent background for the cleanest results at all sizes.
  • Start with at least 256×256 pixels so the ICO looks sharp on high-DPI screens.
  • Keep the file under 10 MB — in practice most icon PNGs are well under 1 MB.
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