How to convert PNG to JP2
To convert PNG to JP2, upload your PNG file, choose JP2 as the output format and press Convert. The finished JP2 file is ready to save to your phone or computer in seconds, free, with no watermark and no sign-up. Your file is deleted from our server about 30 minutes after the conversion.
This free online converter changes PNG images into JP2 files in seconds, with no software to install and no watermark. You can convert several files at once, resize them and choose the quality for formats that support it. Metadata such as location tags is removed from the output for privacy.
What you get with PNG to JP2
- Lossless and lossy in one format
- High bit depth
- Standard for archives and DICOM
- Works with: Safari, Photoshop, GIMP, Preview and archive systems
What to expect from this conversion
- JP2 can be saved lossy or lossless. Quality 100 gives a lossless result where the format supports it, and lower values give smaller files.
- Transparency is kept in the JP2 file.
- Browsers do not display JP2 files, so use it in editors, print workflows or development tools rather than on a web page.
PNG vs JP2
| Property | PNG | JP2 |
|---|---|---|
| Full name | Portable Network Graphics | JPEG 2000 |
| Released | 1996, PNG Development Group / W3C | 2000, Joint Photographic Experts Group |
| Compression | Lossless | Lossy or lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Bit depth | 8-bit or 16-bit | up to 16-bit |
| Shown in browsers | Yes | No |
| Best for | screenshots and UI graphics; logos with transparent backgrounds | digital libraries and archives; medical and geospatial images |
Steps to convert PNG to JP2
- Drop your PNG image file onto the converter, or click to choose it.
- Check that JP2 is selected as the target and adjust the options if you want.
- Press Convert, then download your new JP2 file when it finishes.
Tips for the best result
- Use quality 80 to 90 for photos: it is visually close to the original at a much smaller size.
- Set a width if the image will be shown on a small screen, which also reduces the file size.
- Choose a background colour before converting transparent images to a format without transparency.
Frequently asked questions
How do I convert PNG to JP2?
Drop your PNG files on the converter, confirm that JP2 is the target and press Convert. Download each file or the whole batch as a ZIP.
Is the PNG to JP2 converter free?
Yes. It is free with no watermark, no sign-up and no limit on how many images you convert. The site is supported by ads.
Does converting PNG to JP2 reduce quality?
JP2 can be saved lossy or lossless. Quality 100 gives a lossless result where the format supports it, and lower values give smaller files. The quality slider only affects formats that use lossy compression.
Will transparency be kept when I convert PNG to JP2?
Yes. JP2 supports transparency, so transparent areas stay transparent.
Which programs open JP2 files?
JP2 files open in Safari, Photoshop, GIMP, Preview and archive systems.
How many images can I convert at once?
Up to 20 images per batch, each up to 60 MB. Files are deleted from the server about 30 minutes after conversion.