Convert PNG to JPG
Portable Network Graphics → JPEG Image
拖放图片文件到此处，或点击浏览选择
PNG → JPG
PNG
PNG (Portable Network Graphics) is a lossless compressed raster image format. It supports transparency (alpha channel) and is ideal for graphics, logos, and screenshots where quality must be preserved.
JPG
JPG (JPEG) is the most widely used lossy image format. It offers excellent compression ratios, making files significantly smaller while maintaining acceptable visual quality — perfect for photos and web images.
为什么需要转换
Converting PNG to JPG dramatically reduces file size (often 60–80%), making images load faster on websites, easier to share via email, and compatible with more platforms that do not support PNG transparency.
常见问题解答 (FAQ)
Will I lose quality when converting PNG to JPG?
There is minimal quality loss when converting PNG to JPG at high quality settings. JPG uses lossy compression, so some fine details may be slightly reduced, but the difference is usually imperceptible to the human eye.
Will transparency be preserved after conversion?
No. JPG does not support transparency. Transparent areas in your PNG will be filled with a white background by default. If you need to preserve transparency, keep the PNG format.
How much smaller will the JPG file be?
Typically 60–80% smaller than the original PNG. The exact reduction depends on image complexity and the quality setting used during conversion.
Is the conversion completely free?
Yes, 100% free. There are no file limits, no watermarks, and no account required. Your file is processed entirely in your browser.
Is it safe to convert files on this tool?
Absolutely. All conversion happens locally in your browser using JavaScript and WebAssembly. Your files are never uploaded to any server.