Turn JPG and JPEG photos into lossless PNG files while keeping the exact resolution and orientation.
Open toolConvert PNG to JPG
Convert PNG images to JPG with a quality slider and a background colour for transparent areas.
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How to use PNG to JPG
- Upload your PNG files.
- Choose a JPEG quality and a background colour for transparency.
- Convert and compare the sizes.
- Batch several files and download them together as a ZIP.
About this tool
Convert PNG images to JPG with full control over quality and the background colour used for transparent areas. It is the right choice when you need small, universally supported photos.
Recommended settings
- White is the default background; pick any colour to match your layout.
- Quality 80–85 balances size and clarity for most images.
Supported formats
Input: PNG. Output: JPEG.
Quality & file size
Lossy formats (JPEG, WebP, AVIF) trade detail for smaller files as you lower the quality; PNG stays lossless regardless of the slider. The tool always shows the original and result sizes so you can judge the trade-off, and it never recommends a result that is larger than your original as an “optimisation”.
Privacy
Every image is decoded, transformed and re-encoded entirely in your browser using the Canvas API and a Web Worker. Files are never uploaded, are not stored in localStorage, and are cleared from memory when you remove them or close the page.
Common issues & limitations
- Transparency is flattened onto the background colour — never onto black.
- JPEG is lossy, so sharp graphics may look softer than the PNG original.
- All processing happens on your device; nothing is uploaded, so very large batches are limited by your available memory.
Frequently asked questions
What happens to transparent areas?
JPEG has no transparency, so transparent pixels are filled with the background colour you pick (white by default) — never with black.
How do I choose the quality?
Quality 80 is a good default. Raise it for important photos, lower it to save space. Preview before downloading.
Are my images uploaded to a server?
No. Every image is decoded, processed and encoded entirely inside your browser using the Canvas API. The files never leave your device and are discarded when you close the page.