Sun raster .sun
A raster format used by Sun workstations, also commonly saved with the RAS extension.
SUN and RAS are extension variants; output is a raster image.
SUN file format guideSUN to HEIC converter
Convert Sun raster (.sun) to HEIC for free. Choose files, review the available settings and download your results. No account needed.
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HEIC .heic
A high-efficiency image container often used by iPhone cameras. Converted locally using a HEIF decoder.
HEIC file format guideHow to convert SUN to HEIC
- Select SUN files from your device or drag them into the converter.
- Check the HEIC output. Open conversion settings if you want to make adjustments.
- Convert, compare the original and result, then download your files.
Quality, compatibility and file limits
Raster export can flatten layers and reduce color depth; source editing data is not preserved.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.