Convert PNG to ICO Online
PNG is the ideal source format for ICO files because both formats support transparency. Convert your logo PNG into a multi-resolution ICO with one click.
↑ Select output format — all files convert to this format
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Why convert PNG to ICO?
If you're building a website, the most reliable favicon you can serve is a multi-resolution ICO file at /favicon.ico. While modern browsers also accept PNG and SVG favicons via <link> tags, ICO is the universal fallback that every browser since the late 1990s requests automatically.
PNG sources convert to ICO especially well because both formats are lossless and support full alpha-channel transparency. Logo edges stay crisp, transparent backgrounds compose cleanly against any browser theme, and icon details survive the downscaling to small sizes (16×16, 32×32, 48×48).
For best results, start with a square PNG at least 256×256 pixels. The converter generates the standard set of icon sizes inside a single ICO container, so the browser or operating system picks the right one for each context.
Common use cases
- Generating favicon.ico for a new website
- Building Windows shortcut icons
- Replacing the default folder icon on Windows
- Creating app icons for legacy installers
How to convert PNG to ICO
- Upload your PNG files — drag and drop into the uploader above, or click to browse. Up to 20 files per batch, 25 MB each.
- Confirm ICO as the output format — the format selector is already pre-selected for this conversion. You can change it before clicking Convert if you change your mind.
- Click Convert — your PNG files are processed on our server in seconds. A progress bar shows live status for each file.
- Download the ZIP — your converted ICO files are bundled into a ZIP for one-click download. Source files are deleted immediately afterwards.
PNG to ICO — Frequently Asked Questions
Is the PNG to ICO converter really free?
Yes — completely free, with no signup, no credit card, no watermarks, and no file count limits. The full feature set is available without any account.
Are my PNG files private?
Yes. Files are stored in a private directory outside the web root, never shared with anyone, and deleted immediately after you download your ZIP.
How many PNG files can I convert at once?
Up to 20 PNG files per batch, with a maximum of 25 MB per file. There are no limits on the number of batches you can run.
Does the converted ICO keep the same image quality?
Yes. ICO uses lossless compression, so every pixel from your PNG source is preserved exactly. The resulting file is bit-for-bit accurate.
What sizes does the ICO contain?
The generated ICO file is a multi-resolution container with the standard favicon sizes (16×16, 32×32, 48×48, 256×256). Browsers and operating systems automatically pick the right size for each context.
Related image conversions
Or browse the full supported conversions matrix on the homepage.