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ToolBox World

PNG to JPG Converter

Screenshots and exported graphics are often saved as heavyweight PNG files. Converting them to JPEG can cut the size dramatically, making them easier to email, upload or attach to forms with strict size limits.

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How to use the PNG to JPG Converter

  1. 1

    Upload one or more PNG images.

  2. 2

    Choose a JPEG quality level and a background colour to fill any transparent areas.

  3. 3

    Click “Convert to JPG” and download your files.

Features & benefits

  • Transparency handling

    Pick white, black or any custom colour to replace transparent pixels, so you never get unexpected black backgrounds.

  • Adjustable quality

    Balance clarity and file size with a simple slider.

  • Big size savings

    Photographic PNGs commonly shrink by 70–90% when saved as JPEG.

  • Private by design

    Processing runs locally — ideal for confidential screenshots.

Why convert PNG to JPG?

PNG is perfect for preserving exact pixels, but that precision comes at a cost: a full-screen photo saved as PNG can easily exceed 5 MB. JPEG's compression is designed for continuous-tone images, so the same photo may need only a few hundred kilobytes.

Because JPEG does not support transparency, any see-through parts of a PNG must be filled with a solid colour. This tool lets you choose that colour so logos and icons still look right on the page where you intend to use them.

Frequently asked questions

What happens to transparent areas?

They are filled with the background colour you choose (white by default), because the JPEG format cannot store transparency.

Which quality should I pick?

80–90% keeps screenshots with text readable. For photos, 70–80% is usually indistinguishable from the original.

Can I convert many PNGs at once?

Yes, add up to 20 files and download them all as one ZIP archive.