Pexels

Vecteezy是一个高质量免费矢量素材模板下载站点，收集了相当多的图片素材。无需注册或者付费就可以浏览整个网站，除了有小型的预览图外，你也可以直接在网站內预览原始图片、下载、评分或留下意见

PngPix一个可以免费下载高清免抠素材的网站，这里的免抠素材类型非常丰富，而且质量很高，无论你需要什么样的免抠素材，都能在这里找到，看到喜欢的素材就可以直接下载，非常方便,Download free PNG Images, Photos, Pictures, Cliparts and Icons in Best Quality and High Resolution for Personal, Educational and Non-Commercial Usage.

超过25000张免费素材图片，Stock Up is the most popular way to search for free stock photography. We combine (with permission) the free stock photos from across 25 different websites into one simple and insanely fast search engine. New photos added weekly.

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The world's quirkiest collection of free high-resolution pictures you can use on your personal and commercial projects. All completely free of copyright restrictions. New photos added every week!

所有人都可以使用的摄影图片，Beautiful, free images and photos that you can download and use for any project. Better than any royalty free or stock photos.