TikTok ad specs: in-feed video
What TikTok asks for in in-feed ads, bought at auction or reserved: ratios, minimum resolution, file types, video length and size, and caption length, from TikTok’s own help pages.
Checked on Oct 16, 2026 against the platform’s own pages. The sources are listed at the end of the guide.
In-feed video, auction
| Ratio | 9:16 recommended, at least 540 × 960; 16:9 (at least 960 × 540) and 1:1 (at least 640 × 640) also run |
|---|---|
| File types | .mp4, .mov, .mpeg, .3gp, .avi |
| Length | Up to 10 minutes |
| File size | Up to 500 MB |
| Bitrate | At least 516 kbps |
In-feed video, reservation and TopView
| Ratio | 9:16, at least 540 × 960 |
|---|---|
| Length | 5 to 60 seconds; TikTok recommends 9 to 15 |
| File size | Up to 500 MB |
| Bitrate | At least 2,500 kbps |
Images, captions and the safe zone
| Images | No single-image ads in the TikTok feed; images run as Carousel ads of 2 to 35 images, JPG or PNG, with music |
|---|---|
| Carousel images | 1200 × 628, 640 × 640 or 720 × 1280; TikTok suggests 100 KB or less |
| Caption | Up to 100 characters (50 in Chinese, Japanese and Korean) for reservation ads and TopView |
| Display name | Up to 20 characters (10 in Chinese, Japanese and Korean) |
| Safe zone | Published as template files, not as figures; a longer caption leaves a smaller safe zone |
How to upload
- 1Go to the Dashboard and click Create ad, or open an ad group and click Create.
- 2Select the ad format: Single video, Carousel or Collection Ads.
- 3Add the video with +Add videos or images, or upload it in the Library, then choose a thumbnail.
- 4Add the text, call to action and URL, then click Submit.
Good to know
- Sizewright composes TikTok banners at 1080 × 1920, above TikTok’s 540 × 960 minimum, and keeps text clear of the caption at the bottom and the buttons on the right.
- Reservation and TopView ads must run at least 5 seconds; Sizewright’s TikTok videos never run shorter.
What Sizewright delivers for TikTok
The package Sizewright builds for TikTok and every size it composes for it. Each file is checked against these limits before you can download it.
Questions about TikTok
Can a still image run as a TikTok ad?
Not as a single image in the TikTok feed: images run as Carousel ads of 2 to 35 images with music. Sizewright delivers animated sets as MP4 video for in-feed ads, and every banner also as PNG and JPG.
How long can a TikTok in-feed video be?
Up to 10 minutes for auction in-feed ads; 5 to 60 seconds for reservation in-feed ads and TopView, where TikTok recommends 9 to 15. Files can be up to 500 MB.
Sources
The pages this guide was checked against.
Banners ready for TikTok
Paste your website address. Sizewright composes the set and packages it to TikTok’s specs.