Will converting PNG to JPG reduce quality?

JPG is lossy, so some detail is discarded. At 90% quality the difference is usually invisible in photos. Sharp text and flat graphics can show artefacts, which is why PNG is better for those.

Why is my PNG bigger than the original JPG?

PNG stores every pixel exactly, while JPG throws away detail to save space. Converting JPG to PNG can't recover what was lost, and the lossless file is often several times larger.

What happens to transparent backgrounds?

JPG can't be transparent, so transparent areas are filled with the colour you pick. Keep PNG (or use WebP) if you need transparency.

Are my images uploaded?

No. Conversion happens with your browser's canvas, on your device. Nothing is sent to a server.

PNG ↔ JPG Converter

Convert PNG images to JPG, or JPG to PNG, with adjustable quality and a side-by-side preview.

Processed locally

Drop a file here

PNG or JPG · up to 50.00 MB · or paste

Choose file

Stays on your device

Instructions

How to use it

01Drop a PNG or JPG onto the box, choose it from your device, or paste a screenshot.
02The opposite format is selected for you. For JPG output, adjust the quality slider.
03Compare the original and converted image and their file sizes side by side.
04Press Download to save the converted file.

About

What it does

PNG and JPG are the two most common image formats, and they're good at different things. PNG is lossless and supports transparency, which makes it ideal for logos, screenshots and graphics. JPG uses lossy compression that makes photos dramatically smaller, but it can't store transparency.

This converter goes both ways. Convert PNG to JPG to shrink a photo for email or upload limits, or JPG to PNG when an editor or form requires PNG. Your image is converted by your browser and never uploaded.

Supported formats

PNG → JPG: Much smaller for photos. Transparent areas are filled with a colour you choose (white by default).
JPG → PNG: Lossless from here on, but it won't restore detail the JPG already lost, and the file is usually larger.

Settings explained

Quality: 90% is visually identical to the original for most photos. 70–80% gives much smaller files with little visible change.
Fill transparency with: JPG has no transparency, so see-through pixels need a background colour. Match it to where the image will be shown.

Good for

Shrinking a PNG photo to fit an upload limit
Meeting a form that only accepts JPG (or only PNG)
Converting screenshots for email attachments
Getting a PNG for an editor that won't open JPG

Questions, answered

Will converting PNG to JPG reduce quality?: JPG is lossy, so some detail is discarded. At 90% quality the difference is usually invisible in photos. Sharp text and flat graphics can show artefacts, which is why PNG is better for those.
Why is my PNG bigger than the original JPG?: PNG stores every pixel exactly, while JPG throws away detail to save space. Converting JPG to PNG can't recover what was lost, and the lossless file is often several times larger.
What happens to transparent backgrounds?: JPG can't be transparent, so transparent areas are filled with the colour you pick. Keep PNG (or use WebP) if you need transparency.
Are my images uploaded?: No. Conversion happens with your browser's canvas, on your device. Nothing is sent to a server.

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