AdViewport is a free browser-based tool for building advertising mockups before a campaign is published. It gives marketers, designers, freelancers, and agencies a way to review the appearance of creative and copy across eight advertising platforms: Facebook, Instagram, Google Ads, LinkedIn, X, Snapchat, TikTok, and YouTube.
Users choose a platform and edit the available text, creative, and call-to-action settings in the browser. The preview makes it possible to look at an ad layout while making changes, instead of preparing a separate design from scratch for each review. Desktop and mobile views help teams compare how a concept looks in different contexts. The tool is useful when preparing a proposal, discussing design choices with a client, or checking copy alongside an image before moving into an advertising platform's own workflow.
Finished previews can be exported as PNG, JPG, or SVG files. A share link can restore text and settings for another review. Uploaded images remain in the user's browser and are not included in shared links, so sharing a link does not transfer those image files. Users should keep that limitation in mind when handing a mockup to a colleague or client.
AdViewport does not require an account to use the tool, and the current product is free. Its purpose is to create design previews. It does not publish campaigns, buy advertising, manage campaign budgets, or predict performance. A mockup is a visual aid for reviewing a concept; final campaign setup and platform checks still take place in the relevant advertising service. This narrow workflow keeps the tool focused on preparing and communicating ad designs.
A practical session can start with choosing the platform used for a planned advertisement, then entering the proposed copy and uploading the intended creative. The preview can be reviewed as the text and call to action are adjusted. Switching between available desktop and mobile views supports a discussion about how the same concept appears in those layouts. When the design is ready for review, an exported image can be shared through the team's existing communication tools.
The eight supported platforms give teams one place to prepare visual mockups for several different channels. AdViewport is a browser utility rather than an advertising account dashboard. It can support an early review before a campaign is built, but it does not replace the destination platform's approval process or its live ad rendering. Shared text and settings are useful for collaboration, while uploaded creative needs to be handled separately because those images are not carried in a share link.
