JPG to PNG Batch Converter

Convert up to 20 images at once with Pro Quality Settings. 100% Free • No Watermarks • Private & Secure

📊 PNG Quality Settings

Choose between Maximum Quality (Lossless) or Optimized Size. Maximum Quality preserves every pixel but results in much larger files, while Optimized uses smart compression to keep sizes small with near-perfect visuals.

✨ Best Quality

⚡ Optimized Size

Current Setting: Best Quality (100%)

File Size: ~85-95% of original

Compression: Lossless

Best For: Print, Archiving, Professional Use

💡 Tip: Use "Optimized Size" for web use and "Best Quality" for printing or archival purposes.

10K READY

Click or drag image to convert

You can upload up to 20 images at a time

Selected Files (0)

⚡ Fast JPG to PNG Batch Converter ⚡

▸ Convert JPG to Transparent PNG in Seconds

ConvertPixels provides the fastest way to change JPG to PNG without losing quality. Our specialized engine is built for batch processing, allowing you to handle up to 20 images at once. Whether you need to prepare assets for web design or high-quality printing, our JPG to PNG converter ensures pixel-perfect results instantly.

🔧 Optimized for Batch Processing

🚀 20-File Batch Limit

Stop converting one by one. Upload up to 20 JPG files simultaneously and watch them convert to PNG in a single click.

🛡️ Secure Local Conversion

Your photos stay on your device. We use browser-based technology to process your JPGs locally, so your data is never sent to a server.

💯 No Watermarks

Get professional, clean PNG files every time. We never add watermarks or hidden fees to your converted images.

⚙️ PNG Quality Settings & Smart File Size Optimization

ConvertPixels includes two powerful PNG conversion modes designed for different workflows. Choose Best Quality (Lossless) to preserve every visible detail from your original JPG with maximum PNG accuracy — ideal for printing, archiving, design work, and professional editing. Or switch to Optimized Size, which uses advanced 256-color PNG optimization to dramatically reduce file size while maintaining near-identical visual quality for websites, apps, social media, and faster loading speeds.

Unlike basic converters with fixed settings, ConvertPixels gives you direct control between maximum image quality and smaller optimized PNG output. Depending on the image, optimized PNG files can become up to 70% smaller while still looking extremely sharp to the human eye.

🖼️ 10,000×10,000 & 100MP JPG to PNG Converter Support

Looking for a 10,000×10,000 JPG to PNG converter or a tool that can handle 100MP high-resolution images? ConvertPixels is specifically optimized for large image conversion, allowing you to process ultra-HD wallpapers, AI-generated artwork, photography exports, detailed textures, posters, and professional design assets directly in your browser. Even many mid-range devices can smoothly convert massive JPG files into PNG thanks to our high-performance browser engine.

🚀 Convert Even Larger Than 10,000×10,000 & 100MP JPG Images to PNG

Need to convert images beyond 10,000×10,000 resolution or 100MP+? ConvertPixels is powered by an extremely optimized browser engine designed for handling ultra-large JPG to PNG conversions more efficiently than typical online converters. The maximum image size supported mainly depends on your device's RAM, CPU power, and browser capabilities — meaning higher-end systems can reliably process even larger photography exports, AI-generated artwork, textures, posters, and ultra-HD graphics while preserving maximum image detail.

Unlike many converters that fail, freeze, or enforce aggressive upload restrictions, ConvertPixels performs all processing locally on your own hardware. This means there are no traditional server-side image limits, no forced downscaling, and no unnecessary compression during conversion. The stronger your device specifications are, the larger the JPG images our engine can reliably convert into high-quality PNG files.

⚡ Fastest JPG to PNG Converter in the World — 47 Million Pixels Per Second

ConvertPixels is engineered for extreme-performance conversion. In real-world benchmarks, our engine processed 2 billion pixels in just 47 seconds on a standard 4-core consumer PC — sustaining nearly 47 million pixels per second.

This is possible because all processing happens locally via multi-threaded Web Workers using your own CPU cores directly — no uploads, no server queues, no bottlenecks.

📱 How to Batch Convert JPG to PNG

Select 20 JPGs

Drag and drop your files into the upload zone. You can select up to 20 images for batch conversion.

Verify Previews

Check your image thumbnails in the preview list before clicking the Convert All button.

Instant Download

Once converted, your high-quality PNGs are ready. Download them all instantly to your device.

❓ FAQ: JPG to PNG Conversion

Will I lose quality when converting JPG to PNG?

No. While JPG is lossy, PNG is a lossless format. Our tool preserves the original pixels of your JPG during the transition.

What is the 256-color (UPNG) option?

It is an advanced optimization that shrinks PNG file sizes by limiting the palette to 256 colors. It keeps the image looking sharp while making it much lighter for web use.

Why can't I upload more than 20 files?

To ensure maximum speed and prevent browser crashes on mobile, we've optimized the batch limit to 20 files per session.