Convert PNG to JP2 Online
File sizes are 5–10x larger than JPEG for photographic content because lossless compression can't discard visual data. Converting to JP2 gives you a key advantage: wavelet-based compression delivers superior quality at low bitrates and supports lossless, lossy, and progressive decoding in one format. JP2 is best for medical imaging, satellite imagery, and digital cinema where progressive decoding and lossless compression are critical.
Why Convert PNG to JP2?
File sizes are 5–10x larger than JPEG for photographic content because lossless compression can't discard visual data — converting to JP2 overcomes this by providing wavelet-based compression delivers superior quality at low bitrates and supports lossless, lossy, and progressive decoding in one format
JP2 is the right choice when you need to: storing and transmitting medical x-ray and mri images in dicom workflows
Gain broader compatibility — JP2 works with Medical imaging viewers (DICOM), Safari (partial), IrfanView, Adobe Photoshop, Kakadu, OpenJPEG
Your PNG files were created for creating logos and icons with transparent backgrounds for web and print, but now you need a format suited to different workflows
PNG vs JP2 — Format Comparison
Portable Network Graphics (.png)
JPEG 2000 (.jp2)
How to Convert PNG to JP2
Upload your PNG file
Drag your .png file onto the upload area or click to browse. We accept PNG files up to 50 MB.
Choose JP2 as output format
Select .jp2 (JPEG 2000) from the format list. Configure any format-specific settings to match your requirements.
Convert and download
Click Convert and wait for processing. Your JP2 file will be ready to download in seconds. The result is optimized for medical imaging, satellite imagery, and digital cinema where progressive decoding and lossless compression are critical.
Frequently Asked Questions
Is the PNG to JP2 conversion lossless?
expand_more
When both formats support lossless data, the conversion preserves all content. Up to 38 bits per component, lossless or lossy with wavelet compression, region-of-interest coding.
How large will my JP2 file be compared to the original PNG?
expand_more
PNG files are typically 10 KB – 25 MB, while JP2 files are typically 500 KB – 100 MB. The actual size depends on content complexity and any quality settings you choose.
What software can open the converted JP2 file?
expand_more
JP2 is compatible with: Medical imaging viewers (DICOM), Safari (partial), IrfanView, Adobe Photoshop, Kakadu, OpenJPEG.
What is the maximum file size I can convert?
expand_more
PureConverter accepts PNG files up to 50 MB. Your files are processed securely and deleted from our servers after conversion.
What's the difference between PNG and JP2?
expand_more
PNG (Portable Network Graphics) is best for screenshots, logos, ui elements, and any image requiring transparency or pixel-perfect accuracy. JP2 (JPEG 2000) is best for medical imaging, satellite imagery, and digital cinema where progressive decoding and lossless compression are critical. Key tradeoff: PNG's advantage is lossless compression with full alpha-channel transparency — every pixel is preserved exactly, while JP2's advantage is wavelet-based compression delivers superior quality at low bitrates and supports lossless, lossy, and progressive decoding in one format.
Pro Tips for PNG to JP2 Conversion
Review the output JP2 file to ensure all formatting and content transferred correctly from your PNG source
If your PNG file has transparency, make sure JP2 supports it — JP2 supports transparency
JP2 works especially well for: digital cinema packaging (dcp) where jpeg 2000 is the mandated frame format
Did you know? Every movie you watch in a digital cinema (DCP format) uses JPEG 2000 for its frames — the Digital Cinema Initiatives chose it specifically for its quality at 250 Mbit/s per frame.
Ready to Convert?
Upload your PNG file above and get your JP2 in seconds. Free, fast, and secure.