Convert JNG to IFF

JNG to IFF converter that respects your privacy. No cloud uploads, no file size limits — just fast offline batch processing.

Online converters too slow for your JNG files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

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JNG to IFF
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How to Convert Multiple JNG Files to IFF?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting JNG files in under two minutes.

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Install reaConverter

2. Load your JNG files

Add JNG files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

Load your JNG files into reaConverter

3. Select IFF as output format

Select IFF from the output format list and set your destination folder. You can also adjust quality and compression settings.

Select IFF as output format

4. Start JNG to IFF conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

Start Conversion

When finished, your new .iff files will be waiting in the destination folder.

JNG to IFF Converter

reaConverter offers the fastest, simplest solution for converting your JNG files into IFF in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting JNG files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
Happy User
"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
Ava Thomas
Ava Thomas
Happy User

JNG to IFF Conversion: FAQ

What are JNG files?

JNG (JPEG Network Graphics) is an offshoot of the PNG/MNG family that packages a JPEG-compressed RGB image together with a lossless PNG-style alpha channel, giving you full transparency at smaller file sizes than an equivalent PNG. It uses the same chunked structure as PNG, making it easy to embed metadata or animation cues when paired with MNG. Despite its clever hybrid design, mainstream browsers and tools never embraced JNG, so it remains a niche format overshadowed by PNG, WebP, and AVIF.

What are IFF files?

IFF is an old image format associated with Amiga computers — a brand connected to Commodore, which used to be popular in the 1980s and 1990s. Commodore was one of the first types of personal computers to gain wide popularity among home users. An IFF file most likely contains an image that was created or edited using an image handling program on an Amiga computer. IFF files are currently considered obsolete and uncommon, so opening them with regular image viewers might be difficult.

Can reaConverter convert JNG to IFF?

Yes! reaConverter instantly converts .jng to .iff with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert JNG to IFF online?

If you only need to convert a few JNG files to IFF format, feel free to try our free online free online JNG to IFF converter — perfect for small batches with no installation needed!

How can I turn JNG files into IFF on my computer?

The best way to change JNGs to IFFs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from JNG to IFF.

How can I automate JNG to IFF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert JNG files to IFF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line jng to iff converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert CAD formatsSet picture bit depthConvert DICOM imagesResize pictures

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