JNX to PICON conversion is the process of transforming a JNX map/tile archive used by some GPS and mapping applications into the PICON image/icon format used for compact map tiles or custom point icons. This conversion extracts raster tile imagery and metadata from JNX container files and repackages or re-encodes it to PICON-compatible images for use in mapping apps or device icon sets.
Related guides
Practical guides to help you choose formats, preserve quality, and avoid common conversion problems.
WebP has quietly become the default image format of the modern web, delivering 25-35% smaller files than JPG and PNG with universal browser support. This 2026 guide covers current adoption stats, browser compatibility, WordPress integration, conversion workflows, and when to choose WebP over AVIF for optimal Core Web Vitals performance.
Read guide →Not sure whether to save your image as PNG or JPG? This detailed comparison covers compression, transparency, file size, web performance, and real-world use cases so you can pick the right format every time — with conversion links when you need to switch.
Read guide →Learn how to convert HEIC to JPG for maximum compatibility. This guide explains what HEIC is, why iPhones use it, the key differences between HEIC and JPG, and walks through every conversion method including online tools, iPhone settings, Windows, and Mac.
Read guide →Drag your .JNX file from your computer or use the browse function.
Confirm .picon as the selected destination format.
Click "Convert" and download your converted .PICON file once ready.
JNX files generally use the application/vnd.jnx MIME type and are utilized for geospatial image overlays. PICON files typically use the image/x-picon MIME type and are designed for efficient image storage with lossless or lossy compression codecs. Both file types serve distinct purposes in image processing and mapping applications.
The PICON (.PICON) format is commonly used for image. Understanding its characteristics can be helpful when converting to or from other formats like JNX.
While specific technical details aren't available here, PICON files generally serve the purpose of storing image effectively within their domain.
Our online JNX to PICON converter allows you to seamlessly convert your JNX image files into the PICON format without any software installation. Designed for efficiency and quality, this tool supports fast and secure file conversion accessible from any device.
JNX files are typically used for high-resolution map overlays and specialized imaging, while PICON files offer broader compatibility across multiple platforms and devices. Although JNX supports detailed geospatial data, PICON focuses on efficient image compression and accessibility.
Keep individual JNX tile sets under 10–50 MB for faster processing and better memory efficiency; very large JNX archives may require splitting before conversion.
To preserve visual quality, choose lossless or high-quality PNG export for PICON; avoid aggressive JPEG compression when precise map details are needed.
For batch conversion, process files in groups and use a machine with ample RAM and multicore CPU; convert during off-peak hours to reduce IO contention.
Note format limitation: PICON is optimized for small icons/tiles and may not support advanced JNX metadata (routing layers, multiple zoom indexes) — some metadata can be lost during conversion.
This JNX to PICON converter made my workflow so much smoother.
Anna M.
Photographer
Accurate and fast conversion with no quality loss.
Mark L.
GIS Specialist
Easy to use and great results every time.
Emily R.
Graphic Designer
Start your free JNX to PICON conversion now.
Drag your file here to to upload.
Up to 250MB
If your JNX contains mixed tile encodings, run a pre-scan to normalize tiles (convert JPEG tiles to PNG) to ensure consistent PICON outputs.