JPEG to XPM Converter
Processing entirely on your device — large files may take a moment.
JPEG is the proper full name of the format most people call JPG — the Joint Photographic Experts Group standard. Files ending in .jpeg are identical to .jpg files in every way. Convert PNG or SVG output to XPM to feed icon themes and legacy toolkits.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How JPEG compares to XPM
| JPEG | XPM | |
|---|---|---|
| Compression | Lossy (DCT, adjustable quality) | None (ASCII text) |
| Transparency | Not supported | Single transparent color |
| Animation | Not supported | Not supported |
| Metadata | EXIF, ICC profile | Not supported |
| Best for | Photos and continuous-tone images | Linux icons, X11 themes |
How to convert JPEG to XPM
- 1
Select your files
Drag & drop your JPEG 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 XPM". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted XPM file individually, or grab everything at once as a ZIP archive.
About the JPEG format
JPG (short for JPEG, the Joint Photographic Experts Group committee that standardized it in 1992) has been the default photo format for over three decades. It compresses photographs using the discrete cosine transform: the image is split into 8×8 blocks, and details the human eye is bad at noticing are discarded. The result is files many times smaller than uncompressed data, at a quality level you control when saving.
In practice JPG is unbeatable for photographs and smooth gradients — camera memory cards, messaging apps and the web all assume it. It is a poor fit for screenshots, logos or anything with sharp edges and flat color, where compression leaves visible ringing around text. There is no transparency support, color depth is capped at 8 bits per channel, and every re-save with compression compounds tiny generational losses.
+Strengths
- ✓Opens on literally every device, app and browser made in the last 30 years
- ✓Compresses photos dramatically — typically 10:1 or better with little visible loss
- ✓Quality level is adjustable, so you can trade fidelity for file size
- ✓Mature ecosystem: EXIF metadata, ICC profiles and progressive loading all supported
!Limitations
- −Lossy — artifacts appear on text, sharp edges and flat areas
- −No transparency, so overlays and logos need PNG or WebP instead
- −Repeated re-saving at low quality permanently degrades the image
About the XPM format
XPM (X11 Pixmap) is an image format that is literally C source code: pixels are listed as character-to-color mappings inside an ASCII array. Compilers, text editors and version control all treat it as plain text, which is why Linux desktop icons and legacy X11 application assets have used it for decades.
XPM is limited to 256 colors per image and stores no alpha beyond a designated transparent character, so it is a niche target: mainly icon themes, window-manager decorations and retro programming projects.
+Strengths
- ✓Plain text — diffs and greps
- ✓Compiles straight into C programs
- ✓Tiny for small flat icons
!Limitations
- −256 colors maximum
- −Poor alpha (one transparent color)
Why convert JPEG to XPM?
Think of it as moving your file to the container that fits the job. Lossy — artifacts appear on text, sharp edges and flat areas XPM works differently: Plain text — diffs and greps If any of that sounds like your task, run the conversion — it takes seconds and nothing leaves your device.
Frequently asked questions
Is this JPEG to XPM 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 JPEG to XPM?
No — XPM is a lossless format, so every pixel of the converted image matches your original JPEG file. You can also adjust the quality/size balance before converting when the target format supports compression.
Will transparent areas survive the conversion to XPM?
Transparency is kept whenever XPM actually supports an alpha channel. If the target format has none (like JPG), transparent areas are flattened onto a white background — that is a property of the format, not of this tool.
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 JPEG files matters (camera model, GPS, timestamps), keep the original file as the master and treat the converted copy as the shareable version.