TikTok Sizes, Dimensions and Limits
Updated September 2026 · By Joseph Pugliese, founder of Linklay
Last verified: September 7, 2026
TikTok is built around vertical video, but creators still need separate guidance for profile images, cover frames, video dimensions and text limits. This hub combines new size references with Linklay’s existing TikTok caption and bio character-limit pages so every intent has one canonical destination.
Images
- TikTok Profile Picture Size — Use a 200 × 200 px square image for a TikTok profile picture, or upload a larger square source for extra sharpness.
- TikTok Thumbnail Size — Use a 1080 × 1920 vertical video as the source for a TikTok cover frame and keep the important subject near the center.
Video
- TikTok Video Size — The recommended TikTok video size is 1080 × 1920 px at a 9:16 vertical aspect ratio.
Text limits
- TikTok Caption Character Limit — The TikTok caption character limit is 4,000 characters in the current native app experience.
- Tiktok bio character limit
Existing guides
Sources and verification
Every TikTok specification linked from this hub was last verified September 7, 2026, and each page lists the source behind its numbers.
Sources
- Hootsuite, Social media image sizes, September 2026 https://blog.hootsuite.com/social-media-image-sizes-guide/
- TikTok Ads preview, profile-photo ad spec context https://ads.tiktok.com/standalone-preview/home
- TikTok For Business, Creative best practices https://ads.tiktok.com/resources/help/article/creative-best-practices
- TikTok Ads, Auction in-feed ad specifications https://ads.tiktok.com/help/article/tiktok-auction-in-feed-ads
- Hootsuite, Social media caption preview and character limits https://www.hootsuite.com/social-media-tools/social-media-caption-preview
- Hootsuite, TikTok captions guide https://blog.hootsuite.com/tiktok-captions/