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PNG en JPG

PNG to JPG

Convert PNG images to JPG in your browser. Choose the quality and a background for transparency, then download images individually or as a ZIP archive.

Add PNG images

Drop your PNG images here

PNG only · 20 MB per file · 40 MP per image · 20 files per batch

Help

How to use the converter

Drag your images into the area or click to browse your files. Accepted files appear with a preview, their dimensions and their size. Nothing is converted until you confirm.

Processed on your device

Your images are processed on your device and are not uploaded for conversion.

No account, no watermark

No signup, no watermark added and no advertising pages.

Dimensions kept

No resizing or cropping is applied to converted images.

How to convert PNG to JPG

  1. Add your PNG files

    Add your PNG images from your device or drop them into the zone. Each file is checked before it is added.

  2. Set quality and background

    Pick the JPEG encoder setting and the colour applied to transparent areas. The original dimensions are kept.

  3. Convert and download

    Conversion runs in your browser. Download each JPG on its own, or every successful file in one ZIP archive.

Quality and transparency, without guesswork

What the conversion actually does, and what it does not do.

Quality and file size

The slider sets the JPEG encoder quality (90 by default). The downloaded file is a real JPEG, encoded by the browser from the PNG pixels: it is not a renamed PNG. A high value keeps more detail but can produce a larger file. The opposite happens too: a simple PNG — a screenshot, a logo, flat colour — can become a bigger JPG, because PNG was already very efficient there.

Transparency

JPG has no alpha channel. Transparent and semi-transparent pixels are composited onto the chosen background colour (white by default) before encoding.

Dimensions and metadata

No resizing or cropping is applied: the decoded width and height are reused as they are. The source PNG metadata is not copied into the JPG.

Local processing

The conversion uses your browser's Canvas API. Your images are processed on your device and are not uploaded for conversion.

Guides

Three practical guides to choose a format, handle transparency and set quality without surprises.

PNG or JPG: which format should you choose?

Both formats are everywhere, but they answer different constraints. Here is how to choose with confidence, and what actually changes in a conversion.

Read the guide

Converting a transparent PNG to JPG

A transparent PNG converted to JPG needs a colour behind the empty areas. Prepared well, the result stays clean; prepared badly, it lands on black or with dirty edges.

Read the guide

JPG quality and file size

The quality slider is not a percentage of fidelity. Here is what it actually changes, and useful starting values.

Read the guide

Frequently asked questions

How do I convert several PNG files to JPG?
Select or drop up to 20 PNG files. The converter processes two at a time, shows progress and lets you stop at any point. When it finishes, download each JPG on its own or every successful conversion in one ZIP archive.
What happens to transparent backgrounds?
The JPG format has no transparency. Transparent and semi-transparent areas are composited onto the chosen background colour — white by default, black or a custom colour — before encoding.
Which JPG quality should I choose?
90 is a good starting point for most images. A lower value usually reduces file size at the cost of softer detail. The value shown is the JPEG encoder setting, not a guaranteed percentage of visual fidelity.
Why is the JPG sometimes larger?
Flat colour, screenshots and logos are already compressed very well in PNG. Re-encoded as JPG they can become heavier while losing sharpness. The interface shows the real size of both files and flags a larger result.
Does converting JPG to PNG improve quality?
No. PNG keeps exactly the decoded pixels of the JPG, but it does not restore detail lost in the original JPEG compression.
Does a converted JPG become transparent?
No. A JPG holds no transparency information, so the resulting PNG is fully opaque.
Are images uploaded for conversion?
No. Conversion runs in your browser with the Canvas API: the files stay on your device. Like any website, the service receives routine hosting requests; they do not carry the content of your images.
Are animated PNG files accepted?
No. Animated PNG (APNG) files are detected and rejected with a clear message: this version only converts still images.