How to Convert JP2 to PNG — Quick & Free
Fast, instant JPEG 2000 to PNG conversion. No signup required. Just drop your .jp2 file and get .png in seconds.
Batch Settings
Some metadata may not survive
Your JP2 file may contain EXIF metadata. PNG has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
お持ちのJP2（JPEG 2000）ファイルを、汎用性の高いPNG形式へ変換するお手伝いをいたします。JP2は高圧縮率を誇る先進的な画像形式ですが、ウェブブラウザや一般的な画像編集ソフトでの互換性に課題を抱えることがあります。一方、PNGは透過性に対応し、劣化のない画像保存に適しているため、特にデザインやDTPの分野で広く利用されています。この変換サービスをご利用いただくことで、JP2の持つ高画質を保ちつつ、より多くの環境でスムーズに画像を取り扱えるようになります。ビジネス文書への挿入、ウェブサイトでの表示、あるいは個人のコレクション整理など、様々な場面でその利便性を実感していただけるはずです。簡単な操作で、お手元の画像を最適な形式へと生まれ変わらせましょう。
- 漫画・イラストのデジタルアーカイブ化
- ビジネス文書の図版作成
- DTP入稿データの形式統一
日本のDTP業界では、古くから高解像度画像の取り扱いに慣れており、特定のプロフェッショナル向けソフトでのみJP2が扱えるケースも少なくありません。PNGへの変換は、より多くのソフトウェアやウェブサービスでの利用を可能にし、作業効率の向上に貢献します。
About JPEG 2000 to PNG Conversion
Short answer: yes, you can convert JP2 to PNG online for free, and quality is well preserved with the right settings. Just upload your .jp2 file to CocoConvert, pick PNG as the output, and click Convert. The whole process takes seconds.
Now for the details. JP2 (JPEG 2000) offers wavelet-based compression with better quality than JPEG at the same bit rate. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. Converting between these two formats lets you improve file compatibility across devices.
Full Name: JP2 uses JPEG 2000, while PNG uses Portable Network Graphics. Compression: JP2 uses Lossy & Lossless, while PNG uses Lossless. Transparency: JP2 uses Yes, while PNG uses Yes.
Your JP2 file is decoded and re-encoded as PNG. Converting JP2 to PNG maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert JPEG 2000 to PNG
- 1
1. Upload JP2
Drop your .jp2 file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select PNG
Choose .png from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .png file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert JPEG 2000 to PNG
Your JP2 image is decoded into raw pixel data, then re-encoded as PNG.
Your JP2 file is decoded — the compressed/stored pixel data is expanded into raw RGBA (with alpha channel) pixels
Pixels are re-encoded using Portable Network Graphics's lossless compression
Metadata (EXIF, ICC profiles) is transferred where PNG supports it
The PNG file is saved and ready for download
JPEG 2000 vs PNG — Detailed Comparison
| Feature | .JP2 | .PNG |
|---|---|---|
| Full Name | JPEG 2000 | Portable Network Graphics |
| Compression | Lossy & Lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| Color Depth | up to 16 bits/channel | 8 or 16 bits/channel (up to 48-bit color) |
| HDR Support | No | No |
| Typical File Size | 1–5 MB per photo | 5–20 MB per photo, <1 MB for graphics |
| Platform Support | Limited | Universal |
| Browser Support | Limited | Universal |
| Year Created | 2000 | 1996 |
| Open Standard | Yes | Yes |
Should You Convert JPEG 2000 to PNG?
When to Convert
- ✓Your JP2 file won't open on a recipient's device or in an application
- ✓A website, service, or platform only accepts PNG uploads
- ✓You need a file that works in web browsers
- ✓You need maximum device and software compatibility
Frequently Asked Questions
Is JP2 to PNG conversion free?
Yes. CocoConvert offers free JP2 to PNG conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is JP2 to PNG conversion?
Most files convert in 2–10 seconds depending on size. Large image files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded JP2 file and the converted PNG file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting JP2 to PNG lose quality?
Converting JP2 to PNG maintains high quality with CocoConvert's optimised encoder settings.
Can I convert PNG back to JP2?
Yes, CocoConvert supports PNG to JP2 conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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