JPG to PNG Converter

A JPG to PNG converter is a tool that transforms image files from the JPEG format into the PNG format. While both are common image formats, they have different characteristics — JPG uses lossy compression, meaning some image data is discarded to reduce file size, while PNG uses lossless compression, preserving every pixel exactly. Converting between them is useful when you need the specific advantages PNG offers over JPG.

The main reason to convert a JPG to PNG is quality and transparency. PNG files don’t lose any image data when saved, making them ideal for images that need to stay sharp — like logos, text-heavy graphics, screenshots, or anything you plan to edit further. PNG also supports transparent backgrounds, which JPG cannot do at all. If you’re preparing an image for a website, app, or design project where a clean, crisp result matters, PNG is usually the better choice.

Transparent BG:
exports the PNG with an alpha channel rather than a solid white background, useful for design work
Keep EXIF:
signals that metadata like camera info and location should be preserved (relevant if you extend the tool with server-side processing)
Grayscale:
converts the image to black and white before exporting
Flip H:
mirrors the image horizontally before converting
The Scale slider lets you resize the output anywhere from 10% to 200% of the original dimensions
Convert to PNG runs the conversion, and Download saves the finished file to your device

This tool runs entirely in your browser — nothing is uploaded to any server. When you load a WAV file, the browser’s built-in Web Audio API decodes the raw PCM (pulse-code modulation) audio data from the file. That decoded audio is then passed to a JavaScript port of the LAME MP3 encoder called lamejs, which compresses the audio at the bitrate you’ve selected. The encoding happens in small chunks so the page stays responsive and you can watch the progress bar fill in real time. Once encoding is complete, the resulting MP3 is assembled as a binary blob in memory and made available for you to download — all without your audio ever leaving your device.

The tool runs entirely in your browser — nothing is uploaded to any server. When you select a JPG file, it’s loaded directly into memory and drawn onto an invisible HTML canvas element. The canvas then exports the image data as a lossless PNG file, which you can download instantly. Because it’s all client-side, your images stay completely private.

Yes, our JPG to PNG converter tool is completely free of charge.