What file formats do you support?

We support over 100 file formats including images (JPG, PNG, GIF, WebP, TIFF), documents (PDF, DOC, DOCX, TXT), videos (MP4, AVI, MOV), audio (MP3, WAV, FLAC), and many more specialized formats.

Yes, absolutely. We use enterprise-grade encryption for all file transfers. Your files are automatically deleted from our servers after conversion, and we never store or access your personal data.

What is the maximum file size?

The maximum file size for free users is 100MB per file. Premium users can convert files up to 1GB. For larger files, we recommend our batch processing feature.

How long does conversion take?

Most files convert in under 30 seconds. The exact time depends on file size and format complexity. Our advanced algorithms ensure the fastest possible conversion while maintaining quality.

Can I convert multiple files at once?

Yes! Our batch processing feature allows you to upload and convert up to 50 files simultaneously. This is perfect for bulk conversions and saves significant time.

Do I need to create an account?

No account is required for basic conversions. However, creating a free account gives you access to batch processing, file history, and priority support.

JNX to PNG

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

JNX (Max. 10MB) • Up to 5 files in guest mode

Choose Files

Or upload from:

Temporary file processingFiles are uploaded for processing and are not retained as permanent storage. Read our File Processing & Retention Policy.

2. Conversion Settings

Convert From

Convert To

Image options

Width (px)

Height (px)

Strip image metadata (EXIF, etc.)

Advanced Options

Quality

Instant download after conversion

Why Choose Our Converter?

Fast, batch-focused JNX to PNG conversion with predictable raster results for editing and web delivery.

Fast Batch Processing

Optimized pipeline for converting many JNX map tiles into PNG tiles quickly on modern browsers.

Pixel-Accurate Rasterization

Converts JNX vector/raster mixtures into PNG bitmaps preserving visual fidelity at chosen resolution.

Bulk Workflow Ready

Supports queued batch jobs and ZIP output to streamline large map tile or waypoint image exports.

Wide PNG Compatibility

Produces standard PNG files readable by web browsers, GIS tools, and image editors across platforms.

Export Control

Choose output dimensions and whether to include alpha flattening; adjust PNG compression level client-side.

Client-Side Processing

Files are processed in browser memory; no server-side upload required, reducing exposure of sensitive map data.

Frequently Asked Questions

Find answers to common questions about our file conversion service

Still have questions?

Can't find the answer you're looking for? Our support team is here to help.

Performance Estimates

Estimated conversion times based on typical hardware.

Conversion Speed Benchmarks

1-3 seconds

12 MP image processing

12 MP, 4000x3000

Fast

3-6 seconds

24 MP image processing

24 MP, 6000x4000

Moderate

8-15 seconds

48 MP image processing

48 MP, 8000x6000

Slow

Batch Conversion Estimates

Batch Size	Total Time	Avg per Image	Efficiency
10 images (12 MP each)	20-40 seconds	2-4 seconds	High
50 images (12 MP each)	1.5-3 minutes	1.8-3.6 seconds	High
100 images (12 MP each)	3-6 minutes	1.8-3.6 seconds	Moderate
200 images (12 MP each)	6-12 minutes	1.8-3.6 seconds	Moderate

Browser Compatibility

Format support across all major browsers

Support Across Browsers

Chrome

Supported

Full Support

Firefox

Supported

Full Support

Safari

Supported

Full Support

Edge

Supported

Full Support

Advanced Format Features Support

Features	Chrome	Firefox	Safari	Edge
Alpha Channel
ICC Profiles
EXIF Metadata
16-bit Depth

Device Compatibility

Seamless conversion across desktop, mobile and tablet

Desktop

Fast multi-core processing
Batch upload support

Mobile

Responsive mobile browser workflow
Instant photo conversion

Tablet

Full tablet browser support
Touch-friendly interface

Source vs Target Format

Key technical differences between formats

Feature	Source Format	Target Format
Compression	High efficiency	Uncompressed
File Size	Small	Large
Quality	High (compressed)	Lossless
Transparency	Supported	Supported
Metadata	EXIF, ICC (variable)	EXIF, ICC (PNG chunks)
Primary Use	Map tiling & device packages	Editing & web graphics

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your source files.

Adjust Settings

Choose resolution or color options if needed.

Convert

Click convert to process files locally in browser.

Download Result

Save your converted files or ZIP archive.

Ready to Convert Your Files?

Use our high-speed converter to process your images now.

Start Converting Now

Tips and Best Practices

Optimize your conversion workflow with technical recommendations.

Prepare JNX Source Packs

Verify JNX tile indexes so exported PNGs map to expected tile coordinates
Ensure original JNX uses consistent color profile across tiles to avoid color shifts
Extract or keep original GPX/Garmin waypoint files if you need editable vectors later
Consolidate JNX small tiles into logical groups to reduce per-file overhead
Inspect JNX for embedded overlays that need separate export before flattening

Target PNG Encoding

Select RGBA export when JNX includes transparent legend or overlay elements
Choose higher PNG compression for archival copies if bandwidth is limited
Disable interlacing for faster single-pass writes when creating many tiles
Use consistent output dimensions to make tile mosaics align in GIS tools
Apply preserved ICC chunk only when downstream editors support embedded profiles

Workflow Integration

Link PNG outputs to GIS software by creating a map index from original JNX tile offsets
Batch-export JNX groups matched to project extents to simplify import into editors
Use ZIP packaging for bulk PNG transfer to CMS or cloud storage
Test a small tile set in your target mapping stack before full batch runs
Automate filename patterns reflecting zoom and tile coordinates for easy ingestion

Verify Outputs and Limits

Check resulting PNG alpha where JNX transparency is ambiguous to avoid visual artifacts
Compare a PNG sample at 100% zoom against original JNX tiles for sharpness and color
Confirm metadata fields required by archives are present after export
Monitor browser memory when converting large JNX packages to prevent tab crashes
Retain original JNX files until converted PNGs are validated for production use

Fast Processing

Close unused tabs for maximum throughput.

Client-Side Privacy

No media leaves your device.

Broad Compatibility

Output files work across all operating systems.

Pro Tip

For batch conversions, process in groups of 20-50 files to optimize memory usage and avoid browser slowdowns.

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