# PNG to ICO — Free Online (PdfPixels)

> Convert a PNG or JPG logo into a multi-size favicon.ico (16–256 px) for websites, bookmarks, and app shortcuts.

Canonical URL: https://www.pdfpixels.com/tools/png-to-ico
Processing: server
Cost: free, no signup required for core use.

## Short answer

The PNG to ICO tool by PdfPixels converts a PNG or JPG logo into a multi-size favicon.ico. Upload a square image, pick the sizes, and download the .ico file for free.

## About

PNG to ICO converts a logo or icon into a proper .ico favicon file containing several sizes in one container — 16 through 256 pixels — so browsers, tabs, bookmarks, and operating-system shortcuts each pick the sharpest size. A single square PNG is all the input needed; the tool resizes with high-quality filtering and packs every requested size into one favicon.ico ready to drop into a site root.

## Key features

- Generates a true multi-size .ico container
- Choose which sizes to include (16–256 px)
- High-quality resampling from one source image
- Accepts PNG and JPG input, square images recommended
- Free with no signup; server-side processing

## How to use

1. **Upload your logo** — Choose a square PNG (256px or larger recommended).
2. **Select ICO sizes** — Keep 16/32/48/64 or add 128 and 256 for high-DPI surfaces.
3. **Download favicon.ico** — Drop the file into your website root and link it.

## FAQ

### What size image should I upload?

A square PNG of 256×256 pixels or larger gives the best results. Non-square images are resized to fit before the ICO sizes are generated.

### Why does one .ico contain multiple sizes?

Browsers pick the size that matches each surface — 16px for tabs, 32px for taskbars, larger for shortcuts. A multi-size ICO stays sharp everywhere instead of stretching one bitmap.

### Where do I put the favicon.ico file?

Upload it to your site root (example.com/favicon.ico) and reference it with a <link rel="icon" href="/favicon.ico"> tag. Most browsers also find it automatically at the root.

### Is PNG to ICO free?

Yes — free with no signup. Fair-use rate limits apply.

## Limits

- PDF tools: 50 MB per file. Merge: 20 files / 100 MB total / 1000 pages.
- Image tools: 25 MB, 50 MP max. AI tools: 20 MB.
- Rate limits: 20/min per processing route per IP.
- Server-side files are processed ephemerally and purged automatically within 60 minutes.

More tools: https://www.pdfpixels.com/tools — Full machine reference: https://www.pdfpixels.com/llms-full.txt