SIXEL to MAT Converter
Processing entirely on your device — large files may take a moment.
Convert MAT image arrays to PNG for reports and previews. If your files are still in SIXEL format, this page is the shortcut: SIXEL is DEC's terminal graphics protocol — raster images rendered inline in VT340/xterm terminals, revived by modern terminal emulators for image display over SSH.
This converter runs entirely in your browser using WebAssembly — your files never leave your device, nothing is uploaded, and there are no watermarks, sign-ups or queues. Drop in several files at once to convert them as a batch.
How to convert SIXEL to MAT
- 1
Select your files
Drag & drop your SIXEL files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to MAT". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted MAT file individually, or grab everything at once as a ZIP archive.
About the SIXEL format
The DEC SIXEL Graphics coder of the ImageMagick set — the terminal-graphics format is written natively by the magick.wasm engine, entirely in your browser.
Obscure coder formats like this are exactly what template-driven converters list and never actually convert — here it really works.
+Strengths
- ✓Written natively by ImageMagick
- ✓Runs entirely in your browser
- ✓Free, private, no watermarks
!Limitations
- −Niche format — few modern readers
- −Feature subset varies by coder
- −Keep the original for re-editing
About the MAT format
MAT is the workspace format of MATLAB and its open-source sibling Octave. Image data shows up inside MAT files as numeric arrays — simulation frames, sensor captures, processed microscopy — usually alongside the variables and metadata a research script produced with them.
Converting the image arrays inside a MAT file to PNG makes them viewable and shareable without MATLAB — useful for reports, papers and collaborations where colleagues do not have a MATLAB license.
+Strengths
- ✓Carries numeric precision end to end
- ✓Pairs image data with research variables
- ✓Octave compatibility (open tooling)
!Limitations
- −Requires MATLAB/Octave to open
- −Not an image container by design
Why convert SIXEL to MAT?
Converting makes sense where the strengths of MAT meet what SIXEL cannot give you. Carries numeric precision end to end Meanwhile Niche format — few modern readers One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this SIXEL to MAT converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Will I lose quality converting SIXEL to MAT?
No — MAT is a lossless format, so every pixel of the converted image matches your original SIXEL file. You can also adjust the quality/size balance before converting when the target format supports compression.
What happens to EXIF data and other metadata?
Conversions here re-encode the image, and re-encoding generally does not carry the original metadata over. If the EXIF data of your SIXEL files matters (camera model, GPS, timestamps), keep the original file as the master and treat the converted copy as the shareable version.
Can I convert several SIXEL files at once?
Yes — drop as many files as you like into the tool and they are converted in one batch. When more than one file comes out, everything is bundled into a ZIP for a single download.