Guide des tailles d'images X (Twitter) + Redimensionneur gratuit (2026)

Toutes les tailles d'images X (Twitter) au même endroit — photo de profil, bannière, images dans le fil, summary cards. Redimensionnez n'importe quelle photo aux bonnes dimensions en un clic. Gratuit, sans inscription.

Outils gratuits

Votre image redimensionnée apparaîtra ici

Cliquez sur l'image pour définir le centre du recadrage

Importer une image

Choisir la taille

L : 1080 x H : 1080

Astuce : Cliquez n'importe où sur l'image d'aperçu pour définir le point central du recadrage. Utilisez le curseur de zoom pour ajuster la portion visible de l'image.

Les tailles d'images X (Twitter) n'ont pas beaucoup changé depuis le rebranding de Twitter — mais les quelques changements sont passés inaperçus. Ce guide couvre toutes les tailles d'images X actuelles en 2026 : photo de profil, bannière, images dans le fil, X Cards et les nouveaux formats de bannière X Premium. Le redimensionneur gratuit ci-dessous convertit n'importe quelle image aux bonnes dimensions en un clic. Sans inscription.

X (Twitter) profile picture size

**400×400 pixels** displayed; upload at 800×800 or 1080×1080 for retina sharpness.

Aspect ratio: 1:1 square (displays as circle).

File formats: JPG, PNG, GIF (static or animated for X Premium accounts). Under 2 MB.

Design rule: profile pic displays at small sizes — single face, simple icon, or bold logo works. Detailed photography turns to mush at the 48×48 px feed-display size.

X header (banner) size

**1500×500 pixels** at a **3:1 aspect ratio**. Spans the top of your profile page.

Design rule: the bottom-left corner gets covered by your profile photo and the bottom-right corner displays your bio. Keep important visual elements in the top half and center. Edge-to-edge designs lose corners.

Mobile crops the header to a wider 3.5:1 or 4:1 ratio depending on device — design the center 80% to be the safe zone, knowing the outer edges may not show on mobile.

X in-feed image sizes

**Single image post** — **1200×675 pixels** (16:9 ratio) recommended. Other ratios accepted but get cropped to 16:9 in the feed preview.

**Vertical image** — 1080×1350 (4:5). Renders larger in mobile feeds but cropped in desktop preview.

**Multi-image post** — up to 4 images per tweet. X auto-arranges into 2-image, 3-image, or 4-image grids. Each image should be 1200×675 minimum.

File size cap: 5 MB per image. Animated GIFs up to 15 MB.

X Card image sizes (link previews)

When you share a URL, X pulls the link's `twitter:image` meta tag and displays it as a Card. Two main Card types:

**Summary Card** — square 144×144 px image at the left of a small preview.

**Summary Card with Large Image** — **1200×628 pixels** (1.91:1) at the top of the preview, with title + description below. Most websites use this as their default.

The image must be hosted on your domain (not embedded as base64) and accessible to X's crawler.

X Premium long-form post images

X Premium accounts (the paid tier formerly Twitter Blue) can post long-form articles with embedded images. Embedded image specs:

**Recommended**: 1200 px wide, any height. X resizes for mobile/desktop display. **Maximum**: 8192×8192 px. **File formats**: JPG, PNG, GIF, WEBP.

Long-form images render at full width inside the article body. Same caption + alt-text fields apply.

Conseils pour tirer le meilleur parti de cet outil

  • Profile pic: design for small display sizes. Single face or bold logo beats detail.
  • Header: bottom-left covered by profile photo. Lead with hero in the top half.
  • In-feed: 16:9 (1200×675) renders best across mobile and desktop.
  • Twitter Card: ensure your site has `twitter:image` meta tag pointing to a 1200×628 px image.
  • Always include alt text — X exposes it to screen readers and uses it as a ranking signal.

Questions fréquentes

What is the X (Twitter) image size?

Profile: 400×400 (square). Header: 1500×500 (3:1). In-feed posts: 1200×675 (16:9). Card image: 1200×628 (1.91:1).

What size is a Twitter header?

1500×500 pixels at a 3:1 aspect ratio. Mobile crops slightly wider — keep important elements in the center 80%.

Is the Twitter image resizer free?

Yes. Free, no signup, no watermark. Resize any image to X (Twitter) spec in one click.

What is the Twitter post image size?

1200×675 pixels (16:9 ratio) for single-image posts. Up to 4 images per tweet; X auto-arranges into grids.

What size is a Twitter Card image?

1200×628 pixels (1.91:1) for the Summary Card with Large Image. Set via the `twitter:image` meta tag on your page.

Why does my Twitter header look weird on mobile?

Mobile crops headers to a wider ratio than desktop. Design the center 80% as the safe zone; the outer edges may not show on mobile.

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