Les tailles d'éléments TikTok semblent simples mais se compliquent vite — vidéo, photo de profil, publicité in-feed, publicité top-view, effet de marque, couverture publicitaire, bannière de hashtag sponsorisé. Importez aux mauvaises dimensions et TikTok recadre automatiquement du contenu important ou rejette le fichier. Ce guide documente toutes les spécifications de tailles TikTok actuelles ; le redimensionneur gratuit ci-dessous convertit n'importe quelle image ou frame vidéo aux bonnes dimensions en un clic. Sans inscription, sans filigrane.
TikTok video size: 1080×1920 (9:16)
TikTok videos use **1080×1920 pixels** at a **9:16 vertical aspect ratio**. This is non-negotiable — uploads at other ratios get auto-cropped with black bars or pillar-boxed, killing engagement on the For You page.
**Length**: 3 seconds to 10 minutes (longer for some accounts).
**Format**: MP4 or MOV.
**File size**: under 287 MB on mobile, 500 MB on desktop.
**Frame rate**: 30 fps standard, 60 fps supported.
Design rule: TikTok's UI overlay (username, caption, sound info) covers the bottom 20% of the screen. Keep key text and CTAs in the top 60% — middle of frame works best.
TikTok profile picture size
**200×200 pixels** displayed; upload at 800×800 for retina display sharpness. Aspect ratio: 1:1 square (displays as circle).
File formats: JPG, PNG. Under 5 MB. Animated profile pics not supported.
Design rule: profile pic displays as a circle in TikTok's UI — design assuming circle crop. Center the subject; leave margin around the edges. Single faces, simple logos, and bold single-color brand marks work best at the displayed 40×40 px size in feeds.
TikTok ad sizes (TikTok Ads Manager)
**In-Feed Ad video** — 1080×1920 (9:16) or 720×1280 minimum. Same as organic.
**TopView Ad video** — full-screen 1080×1920. Auto-plays with sound when app opens.
**Brand Takeover (static image)** — 1080×1920 px, JPG or PNG.
**Brand Effect (sticker)** — varies by effect type; check TikTok Creative Center for current specs.
**Branded Hashtag Challenge banner** — 1080×1920.
All ad assets use the same 9:16 vertical ratio as organic content. The advantage of pre-resizing: ad files often face stricter quality review than organic, so getting dimensions exactly right reduces rejection cycles.
TikTok thumbnail (cover) size
TikTok automatically picks a thumbnail from your video, but creators can override via 'Select cover' during upload. Custom cover size: **1080×1920 pixels** (same as the video frame).
If you upload a separate static cover image, use 1080×1920 and design it as a feed-grid hook — what shows on your profile grid (3-column display) is the cover. Strong covers consistently lift profile-to-follow conversion rates 15-25%.
Why TikTok asset specs matter more than other platforms
TikTok's For You algorithm uses watch time as the dominant ranking signal. Anything that hurts watch time — wrong aspect ratio causing letterbox bars, low-resolution upload triggering compression blur, mismatched cover that misrepresents the video — drops your reach hard.
Upload at 1080×1920 native, never below. Don't trust TikTok's auto-resize. Pre-resize once with the tool above; reuse the framing template for every video.
