🖼️ Image Tools
Convert PNG to JPEG with selectable quality and transparency background.
Convert a PNG image to JPEG at a selected quality and choose the solid color used behind transparent or partially transparent pixels.
Convert PNG to JPEG in the browser with a selected quality and background color. Because JPEG has no transparency channel, transparent pixels must be composited onto an explicit background.
The selected image is decoded and processed in the browser. Keep the original until the downloaded output has been opened and checked on the target device.
Last reviewed for accuracy:
Scenario: A PNG has transparent space and is converted with a white background.
Result: The JPEG shows white where the PNG was transparent.
The canvas is filled white before drawing the PNG, then encoded as JPEG with the chosen quality.
JPEG uses lossy compression and does not support alpha transparency. Fieldlet composites the source over the chosen solid color, encodes the pixels, and verifies that the browser returned JPEG data.
Background color and JPEG quality solve different parts of the conversion. The background replaces transparent pixels, while quality controls lossy compression; neither setting can preserve alpha transparency in the final JPEG.
JPEG does not support transparency, so Fieldlet composites transparent pixels over the background color you select before encoding.
JPEG cannot store transparency. The selected background color replaces transparent and partially transparent pixels during conversion.