Batch convert JPEG 2000 (.jp2 / .j2k) to JPG — or images to JP2
JP2 and J2K in, JPG and PNG out — and back again.
Open and convert whole folders of JPEG 2000 files on Windows, offline. No upload, no subscription.
Download Free — 30-Day Trial, No Credit Card$129 one-time. No monthly fees.
Try Free for 30 Days - No Credit Card Required
Convert JPEG 2000 in three steps
Add JP2 / J2K files
Drop a whole folder of JPEG 2000 images into the batch.
Pick output format
Choose JPG, PNG, TIFF, JP2 or any of 60+ formats.
Convert in bulk
Process hundreds of JPEG 2000 files in one run.
Convert both directions
JP2 / J2K → JPG / PNG
Turn archive and medical JPEG 2000 images into everyday JPG or PNG that opens anywhere.
JPG / PNG → JP2
Encode your photos to JPEG 2000 (.jp2) when an archive or workflow requires it.
Why a desktop JPEG 2000 converter
Before Contenta
Online JP2 converters cap free files, queue uploads, and put archive or medical images on someone else's server.
After Contenta
Contenta Converter runs entirely on your PC — unlimited files, full speed, and your images never leave your machine.
Start Converting Photos Today
Choose the plan that works for you. All plans include every feature.
No subscription trap. Contenta is a one-time purchase — less than 2 months of Lightroom, and it's yours forever.
Frequently Asked Questions
Contenta reads and writes 60+ formats including JPEG, PNG, TIFF, WebP, HEIC, AVIF, BMP, GIF, PDF, and 25+ camera RAW formats (CR2, NEF, ARW, DNG, RAF, and more).
There is no limit. Contenta uses multi-core processing to convert thousands of images in minutes. Users regularly process 10,000+ photos in a single batch.
Yes. Contenta supports 25+ RAW formats from Canon, Nikon, Sony, Fuji, Panasonic, Olympus, and more. Full white balance, denoising, and color adjustment controls are built in.
The 30-day trial includes every feature. The first 10 images you convert are saved without a watermark. That allowance is counted once across the whole trial, not per batch, so conversions after it carry a small watermark. A license removes it.
No. Contenta Converter is a one-time purchase. You pay once and own it forever, including all future updates. No monthly or yearly fees.
What Our Users Say
“I have been using Contenta Converter for years and it has saved me countless hours of work. Highly recommended!”
“Simple, fast, and does exactly what it promises. The batch processing is incredibly efficient.”
“Best image converter I have found. The RAW support and metadata handling are top-notch.”
Published by ContentaSoft, Umea, Sweden, developer of Contenta Converter PREMIUM.
Contenta Converter PREMIUM is a desktop application for Windows that batch converts, resizes, renames, watermarks, and processes images in 60+ formats including JPEG, PNG, WebP, HEIC, TIFF, RAW, and PDF.
This software contains no adware, spyware, toolbars, or bundled third-party programs. The installer installs only Contenta Converter PREMIUM.
Conversion, resizing, watermarking and metadata editing run on your computer. The optional AI features (background removal, photo restoration, colorize) send the images you process with them to Google Gemini using your own API key. The software does not collect personal data.
Free 30-day trial with full functionality. After the trial, a license key is required. Lifetime license: $129 (one-time payment, no subscription).
How to Uninstall
Open Windows Settings > Apps > Installed apps, find "Contenta Converter PREMIUM" in the list, and click Uninstall. You can also run the uninstaller from the installation folder or use Control Panel > Programs and Features.
Download size: ~2 MB (web installer). Additional components are downloaded during installation (~300 MB total).