The TikTok In-Feed Ad size (1080×1920px)
TikTok in-feed ads appear between organic videos in the For You feed and play full screen, so the native format is 1080x1920 pixels in a 9:16 ratio. Whether you are building a static end card, a cover frame, or a still creative, sizing it to this full-screen canvas means it fills the phone edge to edge and blends with the surrounding native content instead of sitting inside black bars that instantly read as an ad.
The critical planning step is TikTok's dense interface. On top of an in-feed ad you get the username and caption in the lower-left, the like, comment, share, and profile icons stacked on the right, and the call-to-action button near the bottom. That leaves a fairly narrow safe zone in the upper and central portion of the frame. Keeping your logo, product, and any key message inside that central band, away from the bottom and right edges, stops the interface from covering the parts that matter.
Because TikTok viewers scroll quickly and expect native-feeling content, a clean vertical creative that looks at home in the feed tends to outperform a repurposed landscape ad. Resizing to exactly 1080x1920 first keeps the creative sharp and locks the ratio so nothing stretches at upload. This tool resizes 100% in your browser with no upload, it is free, and it preserves the 9:16 aspect ratio. TikTok updates its ad specs and safe zones frequently, so verify the current guidance before you push a campaign live.