JPG to PNG

JPG to PNG converts a single JPG (or WebP) image into a lossless PNG file entirely inside your browser. Drop a file onto the upload area or click to browse, press Convert to PNG, then download the result. Nothing is sent to a server, the conversion runs on an HTML canvas on your own device.

Click or drag a JPG file here

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Why use JPG to PNG?

JPG to PNG takes one image and re-encodes it as a PNG using the browser's canvas API. When you select a file, the tool loads it into an Image object, draws it onto a hidden canvas at the image's natural width and height, then calls canvas.toDataURL('image/png') to produce the PNG. Because every step happens client-side, the picture you convert stays on your machine and is never transmitted to a server for the core operation. The interface is deliberately small. A single upload area accepts a drag-and-drop or a click to browse, and its label reads "Click or drag a JPG file here" until you load a file, after which it shows the filename. The Convert to PNG button stays disabled until an image is present. Once conversion finishes, a preview of the PNG appears inline, a Download PNG button becomes available, and a Clear button lets you reset. The file picker also allows WebP input, so this doubles as a quick WebP to PNG converter even though the on-screen text emphasizes JPG. It is worth being clear about what conversion does and does not do. PNG is a lossless format, so re-encoding will not pile new compression artifacts onto your image, which is useful when you plan to edit and re-save repeatedly. It cannot, however, undo the compression already baked into a JPG, nor can it add transparency that a JPG never had. The download keeps your original filename and swaps the extension to .png, and there is no built-in batch mode, so you convert one image at a time.

Key benefits

Runs fully in your browser using a canvas, so your image is never uploaded to any server
PNG output is lossless, so no extra compression artifacts are added on top of the source
Also accepts WebP input, not just JPG, since the file picker allows image/webp
Keeps your original filename and simply swaps the extension to .png on download
No account, no watermark, and no queue, the Convert to PNG button works instantly on your device

Features

Drag-and-drop or click-to-browse file upload for a single image
Accepts JPG/JPEG and WebP files (accept=image/jpeg,image/jpg,image/webp)
Client-side canvas conversion via canvas.toDataURL('image/png')
Inline preview of the converted PNG before you download
Download button that names the file after your original with a .png extension
Clear button to reset and convert a different image

Popular use cases

Turning a JPG photo into a PNG so it can sit on a layout that needs a non-JPEG source, without compression artifacts stacking up
Converting a WebP image saved from the web into the more universally supported PNG format
Preparing an icon or graphic as PNG for a tool or platform that rejects JPG uploads
Producing a lossless PNG copy of a JPG before further editing so re-saves do not degrade quality

How to use JPG to PNG

1
Add your image
Click the upload area that reads "Click or drag a JPG file here," or drag a JPG or WebP file onto it. The filename replaces the prompt once loaded.
2
Convert to PNG
Press the Convert to PNG button. The image is drawn to a canvas and re-encoded as PNG, then shown as a preview below the buttons.
3
Check the preview
The converted PNG appears inline as an image above the download and clear buttons, so you can look it over before saving it.
4
Download or clear
Click Download PNG to save the file (it keeps your original name with a .png extension). Use Clear to remove the image and convert another.

Frequently asked questions

Does converting a JPG to PNG restore quality or transparency?

No. The original JPG is already compressed, and JPG has no transparency, so the PNG keeps exactly what the source shows. PNG is lossless, so it will not add new artifacts, but it cannot recover detail or create a transparent background that was not there.

Is my image uploaded anywhere?

No. The conversion happens on an HTML canvas in your browser and the file never leaves your device. There is no API call for the conversion.

Can I convert more than one image at a time?

No. This tool handles one image per conversion. Convert a file, then use the Clear button to load and convert the next one.

What file types can I drop in?

The file picker accepts JPG/JPEG and WebP images. Any of these is drawn to a canvas and re-encoded as a PNG.

What will the downloaded file be named?

It reuses your original filename with the extension changed to .png. For example, photo.jpg downloads as photo.png. If the source has no name, it saves as image.png.

Is there a file size limit?

The tool sets no size cap of its own. Very large images depend on your browser's canvas memory, so extremely high-resolution files may be slow or fail on low-memory devices.

Last reviewed: July 2026

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