Convert ICNS files online for free
The converter easily converts your ICNS file to various formats - free and online. No Notepad or extra software needed.
The converter also works in reverse, so you can convert other Raster Image formats to ICNS with high quality output.
The .ICNS file extension represents the Apple Icon Image format, the standard container used by macOS to display icons for applications, folders, and files. Unlike a simple image, an .ICNS file acts as a resource bundle, holding multiple versions of the same icon at various standard resolutions (typically 16x16 up to 1024x1024 pixels) and states. This ensures the icon looks crisp on everything from a small Finder list to a high-resolution Retina display.
While highly effective within the Apple ecosystem, the .ICNS format can lead to major headaches for cross-platform workflows. It is proprietary and not natively supported by Microsoft Windows, Android, or web browsers. Designers often need to extract these assets for web use or marketing materials but find standard image viewers cannot open them. Additionally, the file size is often bloated because it carries unused resolution variants.
To use these graphics outside of a Mac, you should convert them. For web design or interface work, converting to PNG or WEBP is ideal as it preserves the transparency (alpha channel) and image quality. If you are developing software for Windows, converting .ICNS to ICO is necessary. For general viewing and sharing, JPG is a universally compatible option. Just drag and drop your file to determine the format, view, and convert it instantly.
Use Convert.Guru to open and convert your ICNS file.
Users also converted SVG, PNG, WEBP, ICN, NIB, JPG, ZIP, XAPK, BUNDLE, DS_STORE, BOM and ICO files.
If you want to convert ICNS file to SVG, DLL, EXE, DRV, VXD, 386, COM or BAT, you can use Apple Preview or similar software from the "Application Icon Storage" category. In the File menu, look for Save As… or Export….
To convert MSI, EXE, REG, MST, LNK, CAB, CAT, DRV, INF, SYS, MSU or DLL files to ICNS, try Apple Preview or another comparable tool in the "Application Icon Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ICNS converter.