PNG to ICO Converter
Convert PNG to ICO entirely in your browser — private, fast, and free, with no file size limit. Drop a PNG file below — conversion happens locally on your device, so the file never leaves your computer.
Drop files, or click to browse
PNG files only — any size, any number of files
Frequently asked questions
Is this PNG to ICO converter really free?+
Yes. There's no file limit, no watermark, and no account required. Because the conversion runs in your browser instead of on a server, there's no processing queue to pay for.
Is my file uploaded anywhere?+
No. Orbfile decodes and re-encodes the image locally using ImageMagick compiled to WebAssembly, running entirely inside your browser tab. The bytes never leave your device.
Will converting to ICO lose quality?+
There's a quality slider so you can balance file size against visual quality. At high quality settings the difference is usually invisible.
Can I convert more than one file at once?+
Yes — drop as many files as you like and download them individually or as a single ZIP.
Is there a maximum file size?+
There's no fixed upload limit — Orbfile isn't uploading anything. The practical ceiling is your device's own memory, which comfortably handles even large, high-resolution photos.
How do I convert PNG to ICO?+
Drop your PNG file into the box above — it's automatically converted to ICO and a download link appears in seconds. No settings are required, though you can adjust quality if the tool offers a slider.
About PNG and ICO
What is PNG?
PNG is a lossless image format built for sharp edges, flat colors, and transparency — think logos, screenshots, and UI graphics rather than photos.
Full PNG format guide →What is ICO?
ICO is the Windows icon container format — it can bundle several sizes of the same image into one file for favicons and app icons.
Full ICO format guide →PNG and ICO solve different problems. PNG is great for logos and icons, but ICO pulls ahead when you need multi-resolution support in a single file. If that's the situation you're in, converting is worth it.
How it works
- 1
Drop your file in
Drag your image onto the box above, or click it to browse — there's no account to create and no upload to wait on.
- 2
Pick your settings
The output format is already set for this page — just adjust any extra options shown, if there are any.
- 3
Download the result
Your browser processes everything locally and hands you a download link the moment it's done — nothing was ever sent to a server.
Is it private?
Everything happens locally, inside this browser tab. Your image is read from disk, processed with WebAssembly running on your own device, and handed back to you as a download — it's never transmitted anywhere, so there's nothing to intercept and nothing stored on a server.
Common use cases
- Website favicons
- Windows application icons
- Preparing images for a website or online store
- Attaching a photo to an email with a size limit
Supported formats
This is one of many pairings the image toolkit handles. In total it covers:
Related conversions
Format details
About PNG files+
PNG is a lossless image format built for sharp edges, flat colors, and transparency — think logos, screenshots, and UI graphics rather than photos.
PNG (Portable Network Graphics) was created in the mid-1990s as a free, patent-unencumbered replacement for GIF, and it inherited GIF's lossless approach while adding full 24-bit color and an alpha transparency channel. Because nothing is thrown away during compression, a PNG can be re-saved indefinitely without ever degrading — a real advantage for screenshots, diagrams, and anything with text or hard edges, where JPEG's compression tends to introduce visible smudging. The cost is file size: for photographic content, a PNG is typically several times larger than an equivalent JPEG, which is why most photo libraries still default to JPEG and reserve PNG for graphics.
How to open a PNG file
Opens readily in Any web browser, Your operating system's default photo viewer. For real editing, use Adobe Photoshop, GIMP, Affinity Photo.
Good for
- lossless — no generation loss on re-saving
- full alpha transparency
- crisp text and hard edges
Watch out for
- much larger files than JPG for photographic content
About ICO files+
ICO is the Windows icon container format — it can bundle several sizes of the same image into one file for favicons and app icons.
ICO was built for exactly one job: giving Windows a single file that holds several resolutions and color depths of the same icon, so the operating system can pick whichever version fits — a small taskbar icon versus a large desktop shortcut, for instance — without any scaling. That same trick is why browsers still expect a site's favicon.ico to work the same way: one file, several embedded sizes, used at whatever resolution the browser tab needs.
How to open a ICO file
Opens readily in Windows Explorer previews it automatically, Any web browser. For real editing, use GIMP, IcoFX, Photoshop (with a plugin).
Good for
- multi-resolution support in a single file
- the format browsers expect for favicon.ico
Watch out for
- not meant for anything beyond small icons
Need a different format? Try the full Image Converter, or explore all image tools.