How do I convert PNG to ICNS?
Choose a PNG, JPEG, or WebP image, select fit or fill, then download the generated multi-resolution ICNS file.
Convert PNG to ICNS in Your Browser
This free PNG to ICNS converter creates a real multi-resolution macOS icon container from PNG, JPEG, or WebP artwork. Your source image never leaves the browser.
Source artworkAppIcon.icnsChoose artwork to begin
PNG, JPEG, or WebP · max 24 MB Browser-local
A real multi-resolution ICNS, not a renamed image
ICNS stores multiple icon renditions for different macOS display sizes. This converter resizes your source, packages seven PNG renditions into one ICNS file, and lets you download it without an upload step.
- Seven embedded icon renditions
- Fit or fill crop control
- 100% browser-local processing
How it works
- 01Choose square artwork, ideally at least 1024 × 1024 pixels.
- 02Select fit or fill and inspect the preview.
- 03Download the generated ICNS file containing seven PNG renditions.
Continue your Mac app workflow
Frequently asked questions
What source size works best?
Use square artwork at 1024 × 1024 pixels or larger. Upscaling a smaller source cannot recreate missing detail.
Is my image uploaded?
No. Resizing and ICNS packaging happen entirely in your browser.