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