PGM to SIXEL Converter
Processing entirely on your device — large files may take a moment.
Convert an image to SIXEL to preview it inside a terminal session. If your files are still in PGM format, this page is the shortcut: PGM is netpbm's grayscale format — 8 or 16-bit samples, ASCII or binary, zero compression. Computer-vision research and image-processing courses live on it.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How PGM compares to SIXEL
| PGM | SIXEL | |
|---|---|---|
| Structure | P2 (ASCII) / P5 (binary) header + samples | DEC SIXEL Graphics coder |
| Compatibility | netpbm, OpenCV, MATLAB | ImageMagick, specialty tools |
| Best for | Research pipelines, raw luminance | Legacy and specialty pipelines |
How to convert PGM to SIXEL
- 1
Select your files
Drag & drop your PGM 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 SIXEL". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted SIXEL file individually, or grab everything at once as a ZIP archive.
About the PGM format
PGM is netpbm's grayscale format: a two-line text header, then raw 8 or 16-bit luminance samples with no compression and no metadata. That raw honesty made it the default exchange format of computer-vision research, image-processing coursework and any pipeline where "what you read is exactly the pixel value" matters.
Converting PGM to PNG or JPG just normalizes it for humans; converting back down preserves every value bit-exactly when the pipeline needs numbers, not pictures.
+ Strengths
- ✓Bit-exact pixel values, no color management surprises
- ✓16-bit depth support
- ✓Trivially parseable
! Limitations
- −No compression — large files
- −Grayscale only
- −No embedded metadata
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
Why convert PGM to SIXEL?
Converting makes sense where the strengths of SIXEL meet what PGM cannot give you. Written natively by ImageMagick Meanwhile No compression — large files One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this PGM to SIXEL 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 PGM to SIXEL?
No — SIXEL is a lossless format, so every pixel of the converted image matches your original PGM file. You can also adjust the quality/size balance before converting when the target format supports compression.
Can I convert several PGM 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.
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 PGM files matters (camera model, GPS, timestamps), keep the original file as the master and treat the converted copy as the shareable version.