Best collection of the top Sci Fi wallpapers and backgrounds available for free download.
Explore our collection of stunning HD images, perfect for using as a background or home screen on your smartphone or computer.
Our collection is always growing, ensuring there's something for everyone to enjoy.
Contact us if you'd like to showcase your own Sci Fi wallpapers on our site.

Sci Fi Wallpapers - Top Free Sci Fi Backgrounds -WallpaperCast

Sci Fi

About Us

<p>&nbsp;</p><p>&nbsp;</p><figure class="image image-style-side"><img src="/media/0/13286f93-1f65-42ed-8f76-d34b1f9f00bf.jpeg"></figure><p><strong>Created by and for people who LOVE WALLPAPERS.</strong></p><p>We offer thousands of <strong>high quality, bright and beautiful wallpapers</strong>. Whatever theme or topic you are into, we have a wallpaper for you. You can easily navigate through our categories to find the perfect image to customize your device or you can directly search for it.</p><p>A wallpaper will make your computer or phone more personal, more like you. Custom wallpapers reinforce empathy with the device and reflect your personality, taste and what makes you feel good.</p><p>If you are thinking of changing your wallpaper, if you are bored with your old wallpaper or your PC and would like to give it to personal touch, at WallpaperCast we show you our best wallpapers with amazing and original designs that will surely accompany you.</p><p>Please, feel free to <strong>suggest new wallpapers</strong> for our collection and we will happily add them. We value and welcome any suggestion and contribution.</p>

About WallpaperCast

<p>&nbsp;</p><p>&nbsp;</p><figure class='image image-style-side'><img src='/media/0/e1845f91-6b6d-4df8-bb64-db80005b0665.webp'></figure><h2><strong>Frequent Asked Questions about WallpaperCast</strong></h2><h3><strong>What is WallpaperCast'b1d04df9-07e6-4414-a5fc-5f8b12e13203'</strong></h3><p><strong>WallpaperCast</strong> is a curated collection of images to be used as background of your operating system desktop. This images are often referred to as wallpapers and they allow uses to customize and make their devices more personal.</p><h3><strong>How is WallpaperCast content organized?</strong></h3><p>Our content is organized in categories. You can find them on the top menu on our website and we have many different categories covering interesting topics.</p><h3><strong>How can I find wallpapers?</strong></h3><p>On our site you can use the search bar located on the header, to type in your query and it will display a list of results. If you are looking for inspiration it may be better to navigate through our categories.</p><h3><strong>How can I download wallpapers?</strong></h3><p>Once you find the list of wallpapers you are looking for, scroll through the list until you decide on which image you like most. Below the image you will see a red 'download' button, by clicking on it, a dialog will appear and after 3 seconds, a link will be generated and the text 'Watch full resolution image' will appear. After you click it the full resolution image file will open on your web browser, from there you can save it to your computer or mobile phone. To save it, on a computer you can right click on the image and select 'Save image as...' and on a mobile phone you would do a long press and select 'Download image' from the contextual menu.</p><h3><strong>Can I use a wallpaper on my website? For my YouTube channel? For a t-shirt?</strong></h3><p>The wallpapers are for <strong>personal use only</strong>. Personal use means that they are not to be used for any commercial purposes where you may charge money, collect fees, or receive any kind of payment. These background images may not be used on any website where they could generate revenue, and they cannot be used in advertisements. The images may not be resold, relicensed or sublicensed.</p><h3><strong>How to change your Windows 10 wallpaper</strong></h3><p>It is very easy to do it, just visit the <a href='https://support.microsoft.com/en-us/help/17144/windows-10-change-desktop-background'>Windows support page</a> for detailed instructions.</p><h3><strong>How to change your iPhone wallpaper</strong></h3><p>If you own an iPhone mobile phone, please check the official Apple support help page on <a href='https://support.apple.com/en-us/HT200285'>how to change the wallpaper on iPhone</a>.</p><h3><strong>How to change your Android wallpaper</strong></h3><p>Android users need to <a href='https://support.google.com/android/answer/7680439'>check their Android version</a> as it may be different from version to version. Newer devices, running Android 7.1 and up, can follow the steps described on the <a href='https://support.google.com/nexus/answer/2781802?hl=en'>Android support page</a>.</p><h3><strong>How can I contact you?</strong></h3><p>If you want to send us suggestions or request a wallpaper to be added to our collection.</p>

Contact

<p>&nbsp;</p><p>&nbsp;</p><figure class='image image-style-side'><img src='/media/0/6e1d70ee-852e-45d8-8c68-3a97a2ccd607.jpeg'></figure><h2><strong>We'd love to hear from you!</strong></h2><p>Using the following online form you can contact us to <strong>suggest new wallpapers</strong> for our collection or <strong>share ideas</strong> about how to improve this website. Thanks for all your suggestions and contributions!.</p>

Contact Us

Terms of Use

<p>&nbsp;</p><p>&nbsp;</p><p>This document outlines what constitutes acceptable use of the WallpaperCast.com web site, it's associated web services, and server infrastructure. It also covers our content moderation policy and what you can expect regarding performance and availability.</p><p>If you have questions about what you are legally permitted to do with content found on this web site, please consult our <a href='https://wallpaperaccess.com/copyright'>Copyright Policy</a>.</p><h2><strong>Access</strong></h2><p>This web site is intended to be accessed via standard web browser software such as the ones present on our Compatible Browsers section, and similar products via direct interaction by a human. With the exception of publicly accessible RSS feeds provided in XML format, the web site and its associated files are not meant to be accessed via any automated means such as by scripts or bots or automated applications.</p><p>Be aware that if you utilize an automated means of accessing or downloading this web site, in whole or in part, your access to the site may be prevented, terminated, delayed, or slowed either temporarily or permanently, especially if you attempt to download too many large files simultaneously. This is necessary in order to protect the user-experience of the web site for those who access it in the manner envisioned by its authors.</p><p>Please understand that automated access to the site, via scripts, bots, or other similar means can have the effect of seriously degrading the performance of the web site or incurring significant additional costs to its operators without sufficient revenue generated to cover those costs. Keep in mind, that even minor infractions against this policy can have a large negative effect when combined with similar actions by other users.</p><p>We ask that you respect the above guidelines so that we may continue to offer the web site as a free resource to the world. We prefer to use our resources, both human and financial, to improve and expand the features and content of the web site. Your cooperation is essential.</p><h2><strong>Linking</strong></h2><p>Direct hyperlinking to images and other large files hosted by WallpaperCast.com is strictly prohibited without our permission. You may of course link directly to individual HTML or XML based web pages. Direct linking to our small preview images is permitted but not guaranteed.</p><p>With the exception of publicly available RSS feeds in XML format, no files or services hosted on this web site are to be integrated into any other online service or application without the expressed written permission of the operators of this web site.</p><h2><strong>User-submitted Content</strong></h2><p>WallpaperCast.com is a community supported web site, relying on its user community for the bulk of its primary content. Currently we accept content submissions in the form of desktop wallpapers. In order to maintain the quality of our content offerings, only a subset of submissions are selected to be published to publicly accessible portions of the web site.</p><p>Some of WallpaperCast.com's content may be commented on publicly, with user submitted text appearing directly on the site, associated with the appropriate content. It is the intention of the operators and architects of this site that the commenting feature be used only for constructive feedback and other discussions directly related to the content in question. It is not to be used for personal insults, explicit or implied, off-topic discussions, racially or culturally insensitive material, sexual content, or other material not suited for a family audience including small children. Additionally, we ask that personally identifiable information not be posted to the web site, regardless of whether it pertains to yourself or another individual. Children under the age of 13 shall only post comments or other content under the supervision of a parent, guardian, or other responsible adult.</p><p>We reserve the right to moderate the content posted on WallpaperCast.com, both during and after the submission process. The moderators may delete or edit content at any time, manually or via automated means including the use of user-generated data to determine what is and is not acceptable to our audience. Moderation criteria may vary over time.</p><h2><strong>Performance</strong></h2><p>The operators of the web site make a reasonable attempt to maintain the availability and performance of WallpaperCast.com and its associated services. However, uptime and accessibility cannot be guaranteed. The web site may occasionally be inaccessible, in whole or in part, due to planned or emergency maintenance, feature upgrades, bug fixes, server migrations, hardware upgrades and failures, or simply to prevent unauthorized use, hacking, or exploitation of the web site, or its resources.</p><h2><strong>Liability</strong></h2><p>WallpaperCast.com, its owners, employees, contractors, and partners shall not be held legally liable or financially responsible for any loss, damage, or injury incurred as a result of the use or existence of WallpaperCast.com, its associated sites, content, services or infrastructure.</p><p>&nbsp;</p>

Privacy Policy

<p>&nbsp;</p><p>We recognize that privacy of your personal information is important. Here is information on what types of personal information we receive and collect when you use and visit <strong>WallpaperCast.com</strong>, and how we safeguard your information. We never sell your personal information to third parties.</p><h3><strong>Server Logs</strong></h3><p>As with most other websites, WallpaperCast.com logs web, database, and other server-software usage and access information. This information may include your internet protocol (IP) address, which in many cases can be translated to an affiliation (such as your work, school, or internet service provider), or a geographical location. We only use this information for debugging purposes and for aggregating into anonymous usage and traffic statistics.</p><h3><strong>Comments</strong></h3><p>When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection.</p><p>An anonymized string created from your email address (also called a hash) may be provided to the Gravatar service to see if you are using it. The Gravatar service privacy policy is available here: https://automattic.com/privacy/. After approval of your comment, your profile picture is visible to the public in the context of your comment.</p><h3><strong>Contact forms</strong></h3><p>We keep contact form submissions for a certain period for customer service purposes, but we do not use the information submitted through them for marketing purposes.</p><h3><strong>Cookies</strong></h3><p>While browsing W<strong>allpaperCast.com</strong>, a small number of text files referred to as cookies are created on your local file system by your web browser at the request of our servers. These files allow us to personalize the browsing experience for users. You are free to delete them at any time or configure your browser not to create them. However, we do not guarantee that every feature of W<strong>allpaperCast.com </strong>will function as expected without cookies enabled.</p><p>If you leave a comment on our site you may opt-in to save your name, email address and website in cookies. These are for your convenience so that you do not have to fill in your details again when you leave another comment. These cookies will last for one year.</p><p>If you have an account and you log in to this site, we will set a temporary cookie to determine if your browser accepts cookies. This cookie contains no personal data and is discarded when you close your browser.</p><p>When you log in, we will also set up several cookies to save your login information and your screen display choices. Login cookies last for two days, and screen options cookies last for a year. If you select “Remember Me”, your login will persist for two weeks. If you log out of your account, the login cookies will be removed.</p><p>If you edit or publish an article, an additional cookie will be saved in your browser. This cookie includes no personal data and simply indicates the post ID of the article you just edited. It expires after 1 day.</p><p>Use of Google Analytics. We use Google Analytics to collect information about the use of the Website. Google Analytics collects information such as how often users visit this site, what pages they visit when they do so, and what other sites they used prior to coming to the Website. We use the information we get from Google Analytics only to improve the Website. Google Analytics collects only the IP address assigned to you on the date you visit this site, rather than your name or other identifying information. We do not combine the information collected through the use of Google Analytics with your Personal Data. Although Google Analytics plants a permanent cookie on your web browser to identify you as a unique user the next time you visit the Website, the cookie cannot be used by anyone but Google. Google’s ability to use and share information collected by Google Analytics about your visits to this site is restricted by the <a href='https://www.google.com/analytics/terms/us.html'>Google Analytics Terms of Use </a>and the <a href='https://www.google.com/policies/privacy/'>Google Privacy Policy</a>. You can prevent Google Analytics from recognizing you on return visits to the Website by disabling cookies on your browser.</p><p>Google Analytics employs cookies to define user sessions, which allows for the collection of data about how visitors are using the Website. Google Analytics uses only first-party cookies for data analysis. This means that the cookies are linked to a specific website domain, and Google Analytics will only use that cookie data for statistical analysis related to your browsing behavior on that specific website. According to Google, the data collected cannot be altered or retrieved by services from other domains.</p><p>If you choose, you can opt out by turning off cookies in the preferences settings in your web browser. For more information on Google Analytics, please visit <a href='https://www.google.com/analytics/'>Google Analytics</a> website.<br>To opt out of being tracked by Google Analytics across all websites visit <a href='http://tools.google.com/dlpage/gaoptout'>http://tools.google.com/dlpage/gaoptout</a>.</p><h3><strong>Third-Party Advertisers</strong></h3><p>W<strong>allpaperCast.com</strong> serves ads provided by a range of third-party advertising networks. The practices of our advertising partners are not directly covered by W<strong>allpaperCast.com</strong>’s privacy policy. We recommend that you read their policies. For your convenience, we provide a list of our advertising partners below. Unfortunately, we cannot guarantee it is always comprehensive and up to date.</p><p>Google, We present you the following information about Google and the <a href='http://www.doubleclick.com/privacy/faq.aspx'>DoubleClick DART cookie</a>: Google, as a third party vendor, uses cookies to serve ads on your site. Google’s use of the DART cookie enables it to serve ads to your users based on their visit to your sites and other sites on the Internet. Users may opt out of the use of the DART cookie by visiting the <a href='http://www.google.com/privacy_ads.html'>Google ad and content network privacy policy</a>.</p><p>W<strong>allpaperCast.com</strong> has no access to or control over these cookies that are used by third-party advertisers.</p><p>You should consult the respective privacy policies of these third-party ad servers for more detailed information on their practices as well as for instructions about how to opt-out of certain practices. <strong>WallpaperCast.com</strong>‘s privacy policy does not apply to, and we cannot control the activities of, such other advertisers or Websites.</p><p>If you wish to disable cookies, you may do so through your individual browser options. More detailed information about cookie management with specific web browsers can be found at the browsers’ respective websites.</p><h3><strong>Contact Information</strong></h3><p>Concerns or questions about this privacy policy can be directed to <strong>info@</strong>W<strong>allpaperCast.com</strong> for further clarification.</p><p><br>&nbsp;</p>