How to Convert SUN to ART — Quick & Free
Fast, instant SUN to ART conversion. No signup required. Just drop your .sun file and get .art in seconds.
Batch Settings
About SUN to ART Conversion
Short answer: yes, you can convert SUN to ART online for free, and quality is well preserved with the right settings. Just upload your .sun file to CocoConvert, pick ART as the output, and click Convert. The whole process takes seconds.
Now for the details. SUN is a widely used file format. ART is a widely used file format. Converting between these two formats lets you convert between formats quickly.
Your SUN file is decoded and re-encoded as ART. Converting SUN to ART 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 SUN to ART
- 1
1. Upload SUN
Drop your .sun file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select ART
Choose .art 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 .art file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert SUN to ART
Your SUN file is decoded and re-encoded as ART.
Your SUN file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in ART format
The converted file is ready for download
Format Comparison
SUN
.sun file
| Extension | .sun |
| MIME Type | image/x-sun-raster |
| Category | Image |
ART
.art file
| Extension | .art |
| MIME Type | image/x-art |
| Category | Image |
Should You Convert SUN to ART?
When to Convert
- ✓When you need a ART file
Frequently Asked Questions
Is SUN to ART conversion free?
Yes. CocoConvert offers free SUN to ART 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 SUN to ART 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 SUN file and the converted ART file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting SUN to ART lose quality?
Converting SUN to ART maintains high quality with CocoConvert's optimised encoder settings.
Can I convert ART back to SUN?
Yes, CocoConvert supports ART to SUN conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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