Convert SUN to APNG

Stop converting SUN files one by one. reaConverter processes entire folders to APNG automatically — just drag, drop, and click Convert.

SUN to APNG conversion is faster with the right tool. reaConverter handles everything from a few files to thousands in one batch. Processes files consistently every time, with full control over quality and output settings.

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How to Convert Multiple SUN Files to APNG?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

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Install reaConverter

2. Load your SUN files

Launch reaConverter and drop in your SUN files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your SUN files into reaConverter

3. Select APNG as output format

Pick APNG as output format and choose the destination folder where you want to save new .apng files.

Select APNG as output format

4. Start SUN to APNG conversion

Then simply press the Convert button and your conversion will begin in no time!

Start Conversion

Once the conversion is complete, you can find your APNG files in the destination folder you selected.

SUN to APNG Converter

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

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Do more with your files

Converting SUN 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
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
J. Mitchell
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"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
Malik T. Martin
Malik T. Martin
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"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"
Sarah Lane
Sarah Lane
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"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
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"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
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"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

SUN to APNG Conversion: FAQ

What are SUN files?

The SUN format is part of a group called Sun Raster Images, also including RAST, RAS, SR and SCR. All were designed by Sun Microsystems for its UNIX workstations and might not be compatible with other platforms. SUN images can be black-and-white or colored, including several types of color depths.

What are APNG files?

The APNG format is also known as "animated PNG" and is made up of a series of PNG files of the same size that are connected as an animation. APNG files are similar in function with GIFs, but they support better quality images and transparency.

Can reaConverter convert SUN to APNG?

Yes! reaConverter instantly converts .sun to .apng 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 SUN to APNG online?

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

How can I turn SUN files into APNG on my computer?

The best way to change SUNs to APNGs 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 SUN to APNG.

How can I automate SUN to APNG 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 SUN files to APNG using the command prompt?

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

What else can I do with reaConverter?

Copy IPTC dataConvert GIS filesChange file dateConvert vector filesConvert picture color space

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