Convert ICO to JP2
Free, fast and secure — convert ICO to JP2 right in your browser.
Shrink your ICO by converting to JP2
Converting ICO to JP2 trades a little detail for a much smaller file, making JPEG 2000 the practical choice for fast web pages, email and sharing.
How to convert ICO to JP2
- 1 Drop your ICO file into the converter above.
- 2 It is converted to JP2 automatically — no settings to fiddle with.
- 3 Download your new JP2 file instantly.
ICO vs JP2
| Feature | ICO | JP2 |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency | Yes | Yes |
| Animation | No | No |
| Type | Raster | Raster |
| MIME type | image/x-icon | image/jp2 |
| Best for | Website favicons and Windows app icons — usually made from a PNG or SVG. | Archival, medical and cinema imaging — converted to JPG or PNG for everyday sharing. |
About the formats
Icon (ICO)
ICO is the Windows icon format, used for app icons and website favicons. A single ICO file can bundle several sizes so the right one is shown at each scale.
Strengths
- The standard for website favicons
- Bundles multiple sizes in one file
- Supports transparency
Limitations
- Tiny dimensions only
- Not for general photos
- Limited editor support
Best for: Website favicons and Windows app icons — usually made from a PNG or SVG.
JPEG 2000
JP2 (JPEG 2000) is an advanced image format offering both lossy and lossless compression with better quality than classic JPEG. It is used in archiving, medical imaging and cinema, but has limited everyday support.
Strengths
- Better quality than JPEG at the same size
- Lossless and lossy modes
- Strong for archival and medical imaging
Limitations
- Almost no browser support
- Limited consumer-app support
- Slower to encode/decode
Best for: Archival, medical and cinema imaging — converted to JPG or PNG for everyday sharing.