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.

PNG to JP2

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

PNG (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?

Reliable PNG to JP2 conversion built for archival quality, compatibility and efficient storage without server uploads.

Fast Local Processing

Convert PNGs to JP2 in-browser for immediate results without network transfers or server queue delays.

High Visual Fidelity

JP2 offers superior wavelet compression that preserves visual detail compared to JPEG at similar sizes.

Archival Compatibility

JP2 is widely used in digital archives and GIS; target files align better with long-term storage workflows.

Client-Side Privacy

Files are processed locally in memory buffers so originals and results remain on your device unless you download them.

Batch Ready

Handle tens to hundreds of PNGs per session; batching scales efficiently while avoiding repeated manual steps.

Custom Encoding Options

Adjust quality and compression parameters to balance file size, archival fidelity, and decoding compatibility.

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	EXIF, ICC
Primary Use	Web delivery	Editing & print

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 PNG Sources

Flatten layered PNG exports since JP2 cannot retain PSD-style layers
Embed or normalize ICC profiles in PNG before conversion to help mapping into JP2
Export APNG animations as numbered PNG frames to convert each to individual JP2 files
Convert 16-bit PNGs only when JP2 encoder is configured to preserve 16-bit components
Strip non-essential PNG tEXt chunks if target JP2 metadata mapping is not required

JP2 Encoding Choices

Select reversible JP2 wavelet mode for lossless archival when fidelity is paramount
Use lossy wavelet tuning to reduce photographic PNG sizes while testing PSNR or SSIM
Enable explicit alpha component mapping to preserve PNG transparency in JP2
Prefer higher quality settings for prints; lower for web-only archival copies
Test outputs with your intended JP2 decoder to ensure compatibility before mass encoding

Verification Workflow

Open converted JP2 in OpenJPEG or Kakadu to confirm color and alpha rendering
Compare pixel histograms and sample crops between PNG and JP2 to detect quantization
Check embedded color boxes in JP2 to ensure ICC profile presence if required
Automate validation scripts to flag missing metadata or bit-depth downsampling
Inspect several samples across batches because encoder behavior can vary with content

Archival & Performance

Group archival batches by color depth and resolution to maintain consistent encoder settings
Process 20–50 files per group to minimize memory spikes in browser-based conversion
Keep originals in secure archival storage before replacing with JP2 derivatives
Note that browser decoders may not support all JP2 profiles; store a decoder-compatible manifest
Download and checksum JP2 outputs immediately to avoid transient data loss on device

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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