Convert ICO icons
Decode ICO files that contain PNG images, or set the output to ICO. For multi-size favicon packs, use the Favicon Generator.
Processed locally · never uploaded for conversion
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How to use
- Add an ICO file (PNG-based ICO recommended).
- Leave PNG selected, or choose WebP, JPG, AVIF, or ICO.
- Convert and download.
- For 16×16 through 256×256 packs, open Favicon Generator.
Key benefits
Real ICO output
When you export ICO, the file is a valid ICO container with a PNG payload—not a renamed PNG.
ICO decode
PNG entries inside an ICO are extracted for conversion.
Private
Icons never leave your browser.
ICO limitations
ICO files that store only older BMP bitmaps may not decode. Prefer PNG-based ICO files or rebuild with Favicon Generator.
FAQ
Common questions
Do all ICO files work?
ICO files with PNG images are supported. Some legacy BMP-only ICO files may not decode.
How do I make a multi-size favicon?
Use the Favicon Generator to pick several sizes and download favicon.ico plus PNGs.
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