A quick and simple image placeholder service.
<img src="http://placehold.it/350x200" /> <img src="http://placehold.it/300/09f/fff.png" /> <img src="http://placehold.it/300&text=placehold.it+rocks!" />
Placeholder Images for every case. Webdesign or Print. Just put a custom url in your html and you receive a proper placeholder picture
<img src="http://lorempixel.com/350/200" /> <img src="http://lorempixel.com/350/200/sports" /> <img src="http://lorempixel.com/350/200/sports/Dummy-Text" />
Fakeimg.pl is a little tool that generates images with an URL. Choose the size, the colors, even the text.
<img src="http://fakeimg.pl/350x200/" /> <img src="http://fakeimg.pl/350x200/ff0000/000" /> <img src="http://fakeimg.pl/350x200/?text=World&font=lobster" />
A quick and simple service for getting pictures of kittens for use as placeholders in your designs or code.
<img src="http://placekitten.com/350/200" /> <img src="http://placekitten.com/g/350/200" />
Never understimate the insanity of user-generated content in your projects again.
<img src="http://hhhhold.com/350x200" /> <img src="http://hhhhold.com/m/w/b" /> <img src="http://hhhold.com/350x200/png" />
Instantly get real image placeholders for your development site!
<img src="http://instasrc.com/350x200" /> <img src="http://instasrc.com/350x200/art" /> <img src="http://instasrc.com/350/200/art/greyscale" />
provide an easy way to generate placeholder images for your designs whether it be for web development, print, or a school paper
<img src="http://fpoimg.com/350x200" /> <img src="http://fpoimg.com/350x200?text=Advertisement" /> <img src="http://fpoimg.com/350x200?text=Advertisement&bg_color=000000&text_color=666666" />
Dynamic Dummy Image Generator
<img src="http://dummyimage.com/350x200/200/fff" /> <img src="http://dummyimage.com/350x4:3" /> <img src="http://dummyimage.com/350/09f/fff.png" />
占位图生成器
<img src="http://zhanweitu.com/350/200" />
| 图像尺寸 | 背景色 | 文本 | 文本色 | 灰度图片 | 格式 | 其他特点 | |
|---|---|---|---|---|---|---|---|
| 注：*表示高度可选，缺省时输出正方形 | |||||||
| Placehold.it | √* | √ | √ | √ | gif, jpeg, jpg, png | ||
| lorempixel | √ | √ | √ | √ | √ | 13种图片分类 | |
| Fake images please? | √* | √ | √ | √ | 可设置字体 | ||
| {placekitten} | √* | √ | 图片均为喵星人 | ||||
| hhhhold! | √* | jpg, png, gif | 多种尺寸参数，图片来自 ffffound | ||||
| Instasrc | √ | √ | 36种图片分类 | ||||
| FPOImg.com | √ | √ | √ | √ | |||
| Dynamic Dummy Image Generator | √ | √ | √ | √ | png, gif, jpg | 可按比例输出大小 | |
| 占位图 | √ | √ | 国内网站，速度较快 | ||||
| The Random Image Generator | √ | √ | 抽象背景，批量生成 | ||||
原文：http://www.cnblogs.com/goesby/p/5048071.html