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Add JPG files
Drop a single JPG or a batch of files into the converter. Files are identified from raw byte signatures, not file extensions.
JPG to PNG Converter
Convert JPG to PNG online for free. Convert a JPG to lossless PNG (e.g. to edit or add transparency afterwards). Fast, 100% private, and processed directly in your browser with zero server uploads.
Convertto
Drop JPG images here, or click to choose files
Processed locally in your browser · Zero server uploads
ReadsPNG, JPG, WebP, GIF, BMP, SVG, AVIF, ICO, HEIC, TIFF, JPEG XL
WritesJPG, PNG, WebP, AVIF, JPEG XL, GIF, BMP, TIFF, ICO, PDF
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In-Browser Conversion
What is JPG to PNG Converter?
Converting JPG to PNG wraps your image into a lossless format ideal for graphic design, subsequent image edits, and archival storage where you need to prevent further lossy compression artifacts.
Universal In-Browser Image ConversionJPG to PNG Processing
Client-side conversion workflow: Drag and drop JPG files, customize settings, and convert to PNG in local browser memory.
Technical Architecture100% In-Browser Memory Pipeline
Input Format.jpg
JPG
Decoded directly via browser hardware-accelerated image pipeline.
Engine: Browser NativeZero upload
Local MemoryWASM / RAM
Uncompressed Pixels
Decoded into raw RGBA buffer inside your browser tab memory. No cloud roundtrips or server queues.
RAM Security100% Private
Target Format.png
PNG
Lossless with full transparency — logos, screenshots, line art.
Engine: Browser NativeDirect export
End-to-end local architecture: Files are processed strictly within your device's memory and never leave your computer or phone.
How to convert JPG to PNG
Convert your files in three simple steps directly in your browser:
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Convert to PNG
The browser decodes the source locally, then writes PNG at original pixel dimensions in browser memory.
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Download PNG
Save individual converted PNG files, or download the entire batch as a single ZIP archive.
Key Advantages
Why Convert JPG to PNG Locally?
Experience fast, secure, and lossless conversion with our privacy-first browser architecture.
Privacy & SecurityZero Uploads
100% Private In-Browser Processing
Your JPG photos are decoded and encoded directly inside your browser tab memory. No files are ever sent to remote cloud servers, keeping your personal photos and sensitive documents completely secure.
Zero network transmission - Complete local security
Fidelity & EngineOptimized PNG
Pixel-Perfect Visual Quality
PNG is lossless, so every pixel and the full alpha channel survive the conversion. PNG is one of the three formats browsers can encode themselves, so nothing extra is downloaded and conversion is near-instant.
Original dimensions preserved - No watermarks
ArchitectureWASM Pipeline
How the Conversion Pipeline Works
The conversion executes in two discrete steps inside this browser tab: first, the JPG source is decoded into uncompressed raw pixels in memory. Second, those raw pixels are re-encoded into valid PNG format without quality degradation.
SpecificationsStandards
Format & Privacy Guarantees
- •Dimensions: Exact pixel resolution is retained.
- •Transparency: Alpha transparency is preserved.
- •Metadata: EXIF & GPS location tags are stripped for complete privacy.
Full compliance with web standard image codecs
Continue with another image tool
After checking an image, choose a tool for the change you need. Each tool has a different purpose.
Compress Images to KB or MB
Reduce file size to fit a KB or MB limit. Compression may also reduce pixel dimensions to reach your target.
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Image Resizer and Social Media Sizes
Change pixel width and height for a website, print layout or social media preset. Enlarging an image does not restore missing detail.
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Metadata Remover
Need to strip or edit EXIF before sharing? Open Metadata Remover to remove GPS, camera data and other hidden fields.
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Image Size Finder
Check pixel width, height, megapixels and aspect ratio instantly for one image or a full batch.
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Convert other image formats into optimized PNG:
JPG to PNG FAQ
How do I convert JPG to PNG?
Drop your JPG file into the tool above, then download the PNG. Everything runs in your browser - your image is never uploaded to a server.
Is converting JPG to PNG free?
Yes. There is no signup, no watermark and no limit on the number of files.
Will I lose quality converting JPG to PNG?
PNG is lossless, so every pixel and the full alpha channel survive the conversion.
What is the difference between JPG and PNG?
Convert a JPG to lossless PNG (e.g. to edit or add transparency afterwards). Lossless with full transparency — logos, screenshots, line art.
Does converting JPG to PNG need a plugin or an install?
No. PNG is one of the three formats browsers can encode themselves, so nothing extra is downloaded and conversion is near-instant.
Is transparency kept in the PNG?
Yes. If the JPG has an alpha channel it carries through to the PNG.
Is EXIF and GPS data kept in the PNG?
No. Conversion goes through raw pixels, so EXIF, GPS coordinates, IPTC and XMP are all dropped. That is usually what you want before sharing a photo - but if you need to keep the format and only remove metadata, use the Metadata Remover instead.
Free & Private In-Browser Tool
Convert JPG to PNG Online Now
Fast, 100% private, and completely free in-browser converter. Drop your JPG files and download optimized PNG in seconds.