Image File Hosting

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How it works
Typically image hosting websites provide an upload interface; a form in which you specify the location of an image file on your local computer file system (using a browse button). After pressing a “Submit” button the file is uploaded to the image host’s server. Some image hosts allow you to specify multiple files at once, in this form, or the ability to upload one ZIP file containing multiple images. Additionally, some hosts allow FTP access, where single or multiple files can be uploaded in one session using FTP software or an FTP-capable browser.

After this process, your image is hosted on their server. Typically this means it is available on the web (to the public). You may also be allowed to make inline links to the hosted image, to embed it on other websites e.g.
   
A clickable thumbnail that is linked to the full image
Usually, the image host will put restrictions on the maximum image size allowed, or the maximum space or bandwidth allowed per user. Due to bandwidth costs, free services usually offer relatively modest size limits per image when compared to paid services, but allow users hotlinking their images. Individuals needing to host large images should consider purchasing image hosting services or purchasing webhosting services, so that they may operate their own website.


Tools
Image hosts also allow tools such as the ability to create photoblogs/galleries with your images, or add them to a slideshow for easier viewing. Some offer more advanced tools such as the ability for an individual to add notes to an image they uploaded, sideloaders, or browser sidebars. Other hosts have introduced novel features such as the ability to automatically resize images down to a user-selected size. A Flickr tool allows you to upload photos using a camera phone with email capability.


Cost
Many image hosts are free. Of the free image hosts, the vast majority are supported by advertisement, mostly on their top pages, thumbnail pages, or 'not found' pages. Showing advertisements to users has enabled image size and bandwidth limits to increase.

Some free hosts have optional paid image hosting functions, while other hosts offer only paid services. Features and storage available are generally better for paid services, while cost is still much less than the cost of purchasing webhosting to operate a website. Paid services often allow you to have password protected photo albums, customizable skins, and customized subdomains. There are many other paid services available that offer different packages of features, options, and costs.


See also

Upload Hosting