A user can audition creatives with in a snapshot of a proposed web page of a publisher website in the local application. Multiple snapshots of proposed pages for placement may be downloaded from publisher web sites and stored in a local library. The user can replace existing advertisements or other creatives and the corresponding HTML code with proposed creatives to determine which creatives will provide the best contextual fit for the proposed web site and page. The graphical nature of the application enables the user to drag and drop a creative from a local palette selected from a creatives library onto a web page snapshot.