PNG to JPG Converter

Convert one PNG into a real JPEG while keeping its pixel dimensions. Processing stays in your browser.

Category: conversion · Priority: P0

PNG only · up to 25 MiB · 40 megapixels

Private: the image is processed locally

90

Higher quality can produce a larger file. Changing this control does not convert until you press the button.

Transparent pixel background

JPG has no transparency. This color is placed behind transparent PNG pixels.

Choose a PNG to begin.

How to convert PNG to JPG

  1. Choose one valid PNG file within the 25 MiB and 40 megapixel limits.
  2. Set the JPEG quality and choose the color placed behind transparent pixels.
  3. Press Convert to JPG, review the result, then download the new file.

PNG transparency and JPG backgrounds

JPEG cannot store transparency. PicRecast fills the canvas with your selected color before drawing the PNG, so transparent and semi-transparent pixels are composited deliberately instead of turning black by accident.

PNG vs JPG

PNG supports lossless image data and transparency, which suits logos, interface graphics, and screenshots. JPEG uses lossy compression and no alpha channel, which often suits photographs and sharing workflows where compatibility matters.

When JPG is the better choice

JPG is useful when a service requires JPEG, when an opaque photographic image is acceptable, or when you want control over a lossy quality setting. A converted JPG is not guaranteed to be smaller than its PNG source.

Limitations

This tool handles one still PNG at a time. APNG animation is rejected. Dimensions are unchanged, image quality cannot be improved by conversion, file size may increase, and original metadata or color-profile details may not survive browser re-encoding.

Privacy

The selected PNG and generated JPG stay in your browser. This tool creates no conversion API request and does not send image bytes to Supabase, an AI provider, or another image service.

Frequently asked questions

What JPG quality should I choose?

90 is a practical starting point. Lower values can reduce size with more visible compression; higher values retain more detail but may produce larger files.

What happens to transparent PNG pixels?

They are composited over the white, black, or custom color you select because JPEG has no transparency channel.

Is my PNG uploaded?

No. Decoding, background compositing, and JPEG encoding run locally in the browser.

Related tools

Need the reverse conversion? The related tool uses the same browser-local Conversion Engine. Open JPG to PNG