JPG to PNG

What is JPG?

JPG, also written as JPEG, stands for Joint Photographic Experts Group — the committee that standardized the format in 1992. It is a raster image format that uses lossy compression to shrink file size by discarding visual data the human eye is less sensitive to. JPG is the most widely used and most universally supported image format on the web, found everywhere from digital cameras and smartphones to websites and social media. It is especially well suited to photographs and natural scenes that contain millions of colors and smooth gradients. However, JPG does not support transparency or animation, and every time you re-save a JPG the quality degrades a little further.

What is PNG?

PNG stands for Portable Network Graphics, an image format introduced in 1996 as a modern, patent-free replacement for GIF. Unlike JPG, PNG uses lossless compression, which means no image data is ever discarded — the decoded image is pixel-perfect and identical to the original. PNG also supports a full alpha channel for transparency, making it the preferred format for icons, logos, UI elements, screenshots, and any graphic that needs a transparent background. PNG is supported by every modern browser and virtually all image software. It is the ideal image format when crisp edges, text, and exact quality matter more than a small file size.

JPG vs PNG comparison

Both JPG and PNG are raster image formats, but they are built for very different purposes. JPG favors small file size through lossy compression, while PNG favors perfect quality and transparency through lossless compression. The table below compares the key features of each image format side by side to help you choose the right one when you convert JPG to PNG.

Feature	JPG (JPEG)	PNG
Compression	Lossy	Lossless
Image quality	Degrades on each re-save	Always pixel-perfect
Transparency	Not supported	Supported (alpha channel)
File size	Usually smaller	Usually larger
Best for	Photos, natural images	Logos, icons, screenshots, graphics
Browser support	Universal	Universal
Animation	Not supported	Not supported (APNG is separate)

When to use JPG to PNG conversion

Converting JPG to PNG makes sense in many situations where the strengths of the PNG format outweigh the smaller file size of JPG. Here are the most common reasons to convert a JPG image to PNG:

• You need a transparent background. PNG supports a full alpha channel, so it is the right format when an image must overlay another background cleanly.
• You want lossless archiving. PNG preserves every pixel exactly, making it an excellent master format for images you may edit again later.
• You are editing screenshots or UI graphics. PNG keeps text and sharp lines crisp, avoiding the blocky artifacts that JPG produces around edges.
• You are creating a logo or icon. Logos and icons benefit from PNG's lossless quality and transparency support.
• You are preparing an image for print. Lossless output guarantees the highest fidelity for printed materials and publications.
• You need repeated edits without quality loss. Unlike JPG, a PNG can be saved and re-saved any number of times with zero degradation.

How to convert JPG to PNG

Converting a JPG image to PNG with this tool takes only a few seconds and happens entirely in your browser — no uploads, no sign-up, no watermark. The tool decodes your JPG with the browser's image engine and re-encodes it as a lossless PNG through the Canvas API, so the conversion is both fast and private. Follow these three simple steps to convert your JPG to PNG:

1. Upload your JPG. Click the upload area above or drag and drop a .jpg or .jpeg file. Your image is previewed instantly.
2. Convert. Click the "Convert to PNG" button. The JPG is decoded and re-encoded as a lossless PNG image.
3. Download PNG. Click "Download PNG" to save the converted file to your device. Your original JPG stays untouched.