说明：  作为一名开发人员，我发现将图像转换为.png的在线工具因广告和广告软件而令人沮丧。为了解决这个问题，我创建了一个简单的、开源的、无广告的图像转换器，它是免费的、用户友好的。它有效地将各种图像格式转换为.png，确保流畅无忧的体验。
(As a developer, I ve found online tools for converting images to .png frustrating due to ads and adware. To fix this, I ve created a simple, open-source, ad-free image converter that s free and user-friendly. It efficiently converts various image formats to .png, ensuring a smooth and hassle-free experience.)