Drop files here, or click to browse
Drop one or many images, or a whole folder. You can also paste with Ctrl+V.
How to use
Drop your JPG files
Drag .jpg or .jpeg files onto the upload area, click to browse, choose a folder or paste with Ctrl+V, up to 50 MB each. One file shows a card with its size and dimensions; two or more start bulk mode automatically.
Keep PNG and set the options
PNG is preselected under Output format and needs no quality setting. Type a Max width or Max height to scale large photos down, and switch on Make background colour transparent for logos on white.
Convert and download
Press Convert to PNG. A single file shows before and after sizes and downloads directly. A batch lists each file's new size and saves everything as converted-png.zip.
Why JPG to PNG Converter
- Convert one JPG or hundreds, with a single ZIP for batches.
- Make a white or plain background transparent in the same step.
- Before and after compare, file sizes and a total for the batch.
- Runs in your browser. Photos are not uploaded.
Why a PNG made from a JPG is bigger but not sharper
JPG is a lossy format. When a camera or app saves a JPG, it splits the picture into small blocks and simplifies the fine detail that the eye barely notices. That detail is gone from the file for good.
PNG is lossless. It stores every pixel exactly and compresses only by finding repeated patterns, which works well for flat graphics and poorly for photos full of texture and noise. So when you convert a photo from JPG to PNG, the PNG faithfully stores the already simplified pixels, and the file often ends up several times larger.
Converting makes sense when the file will be edited again, when a tool or form only accepts PNG, or when you plan to add transparency later. If you only need a smaller file for the web, WebP or a compressed JPG is a better target.
JPG, PNG and WebP at a glance
All three formats open in current browsers. The right one depends on the content of the image and where it is going.
A simple rule works for most people: photos you share or upload go as JPG, graphics you edit or need with a transparent background go as PNG, and images for your own website go as WebP. This converter can produce any of the three from the same JPG, so you can try two formats and compare the sizes it shows.
| JPG | PNG | WebP | |
|---|---|---|---|
| Compression | Lossy | Lossless | Lossy (this tool) or lossless |
| Transparency | No | Yes | Yes |
| Typical size for a photo | Small | Large | Smallest |
| Good for | Photos, sharing, email | Screenshots, logos, editing | Images on websites |
| Opens in older software | Almost everywhere | Almost everywhere | Not always |