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Select one or more sizes. Multi-size files work well as website favicons.

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Convert PNG to ICO online

Change PNG to ICO for favicons and app icons. Pick sizes, download in your browser — no signup.

What is a PNG to ICO converter?

A PNG to ICO converter turns a PNG image into a Windows icon (.ico) file—the format used for favicons, desktop shortcuts, and many application icons. People search for png to ico, change png to ico, png file to ico, or png to ico converter when a site or OS expects an ICO instead of a PNG. This tool resizes your image to the sizes you select, embeds PNG bitmaps inside an ICO container, and lets you download the result in the browser without uploading files to a remote converter.

PNG to ICO converter features

Create favicon and Windows icon files from a single PNG.

  • Multi-size ICO

    Pack 16, 32, 48, 64, 128, and/or 256 px bitmaps into one .ico file.

  • Transparency preserved

    PNG alpha is kept so logos and glyphs stay clean on any tab background.

  • Favicon-ready download

    Download as favicon.ico for websites, shortcuts, and Windows apps.

  • Browser-based privacy

    Resize and encode locally—no account and no server upload for processing.

How to convert a PNG file to ICO

Three steps to change PNG to ICO.

  1. Upload your PNG

    Drop a PNG (or JPEG / WebP) into the upload area, or try an example image.

  2. Choose icon sizes

    Select the sizes to embed. Multi-size ICOs work best for favicons across devices.

  3. Download the ICO

    Click Download ICO and save the file—rename to favicon.ico if you use it on a site.

Tips for converting PNG to ICO

Get cleaner favicons and app icons.
  • 01

    Start from a square PNG

    Square artwork with transparent padding converts more cleanly than wide photos.

  • 02

    Design at 256×256 or larger

    Downscaling a sharp master looks better than upsizing a tiny logo into 256×256.

  • 03

    Include 16 and 32 for favicons

    Browser tabs often use the smallest sizes; keep shapes simple so they stay readable.

  • 04

    Keep contrast high

    Thin strokes disappear at 16×16. Prefer bold shapes when you turn a PNG into an icon.

PNG to ICO tools compared

How this free converter differs from common upload-based options.

  • Ezgif.com

    PNG to ICO with size selection. Files are processed on their servers after upload.

  • CloudConvert

    Many format pairs including PNG to ICO. Cloud conversion with account/limit options.

  • ConvertICO / online icon makers

    Dedicated favicon builders, often with templates and server-side rendering.

  • This PNG to ICO tool

    Multi-size ICO in the browser. Pick 16–256, keep transparency, no signup, no upload for processing.

Great for

When people need to turn a PNG into an icon.

  • Website favicons

    Convert a logo PNG to favicon.ico for browser tabs, bookmarks, and history.

  • Windows shortcuts

    Export application or folder icons that Explorer and the taskbar can display.

  • App packaging

    Ship a multi-resolution ICO alongside installers when a PNG alone is not accepted.

  • Quick brand swaps

    Rebuild an icon from an updated PNG without opening desktop image suites.

Why use this tool

A focused PNG to ICO workflow without desktop software.

  • 100% free

    Convert PNG to ICO without sign-ups, watermarks, or paid tiers.

  • Private by default

    Files stay in the browser—useful for unreleased logos and product marks.

  • No install needed

    Works on desktop and mobile browsers when you need a .png to .ico fast.

  • Size control

    Pick exactly the resolutions you need instead of a single fixed export.

Technical details

How PNG to ICO conversion works here.
Conversion path
Image → Canvas resize (contain, square) → PNG encode → ICO directory with PNG payloads.
Supported sizes
16, 32, 48, 64, 128, and 256 pixels. Multiple sizes can share one ICO file.
Input formats
PNG preferred; JPEG and WebP accepted. Output is image/x-icon (.ico).
Processing
100% client-side. No server upload for conversion.

Sources & References

Authoritative references on the ICO icon format, PNG images, and favicon usage on the web.
  • “The ICO file format is an image file format for computer icons in Microsoft Windows.”
    — Wikipedia — ICO (file format)

    ICO (file format): ICO is the classic container for Windows icons and remains widely used for favicon.ico files. This tool embeds PNG bitmaps inside an ICO so modern browsers and Windows can render crisp icons. en.wikipedia.org/wiki/ICO_(file_format)

  • “PNG supports lossless data compression, making it useful for storing graphics that need to be edited repeatedly without losing quality.”
    — W3C — PNG Specification

    PNG image format: PNG is the preferred source for icons because it keeps sharp edges and transparency—ideal when you change a PNG to an ICO for a favicon or app icon. w3.org/TR/PNG/

  • “The icon keyword may be used with link elements; icons can be used for bookmarks and tabs.”
    — MDN Web Docs — Rel attribute: icon

    MDN — Link types: icon: After you convert a PNG file to ICO, you typically reference it from HTML with a link rel="icon" pointing at favicon.ico or size-specific icons. developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel#icon

  • “The Canvas API provides a means for drawing graphics via JavaScript and the HTML canvas element.”
    — MDN Web Docs — Canvas API

    Canvas API: Resizing and PNG encoding run in the browser with Canvas 2D before the ICO container is assembled, so your files stay on the device. developer.mozilla.org/en-US/docs/Web/API/Canvas_API

Frequently Asked Questions

Quick answers about this tool—open a question to read more.