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

Toutes les tailles d'images Facebook au même endroit — profil, couverture, posts, événements, groupes, publicités. Redimensionnez n'importe quelle photo aux bonnes dimensions en un clic. Gratuit, sans inscription.

Outils gratuits

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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.

Facebook possède le plus grand catalogue de tailles d'images de toutes les plateformes sociales — profil, couverture, post, événement, groupe, publicités, marketplace et une douzaine d'autres variantes. La plupart des créateurs n'en connaissent que 2 ou 3. Ce guide documente toutes les tailles d'images Facebook actuelles ; le redimensionneur gratuit ci-dessous convertit n'importe quelle photo aux bonnes dimensions en un clic. Sans inscription, sans filigrane.

Facebook profile + cover photo sizes

**Profile photo** — **170×170 pixels** on desktop, **128×128** on smartphones. Upload at 320×320 or larger for retina sharpness. Displays as a circle.

**Cover photo** — **820×312 pixels** on desktop, **640×360** on mobile. Mobile crops the sides; design the center 640 px as the safe zone. Recommended upload size: 851×315 (the exact Facebook spec).

**Cover video** — 820×312, 20-90 seconds, MP4. Auto-plays muted; design for sound-off comprehension.

Facebook post image sizes

**Single image post** — **1200×630 pixels** (1.91:1) recommended for universal display. Works across desktop, mobile, and shared previews.

**Vertical image post** — 1080×1350 (4:5). Mobile-optimized — takes up more feed space.

**Square post** — 1080×1080 (1:1). Good for Instagram cross-posts.

**Multi-image post** (up to 10 images) — Facebook auto-arranges into a collage. Best with consistent aspect ratios across all images.

Facebook event + group sizes

**Event cover photo** — **1920×1080 pixels** (16:9). Displays at the top of the event page and in event invitations.

**Group cover photo** — **1640×924 pixels** (16:9). Spans the top of the group page on desktop; mobile crops to a wider band.

**Group icon** — **64×64 pixels** displayed; upload at 250×250 for sharpness.

Event and group covers heavily influence join rates. Strong covers — clear event title or group purpose — lift joins 30-50% over default Facebook stock images.

Facebook page + business sizes

**Page profile photo** — same as personal profile, 170×170.

**Page cover photo** — 820×312 desktop, 640×360 mobile. Critical: pages running ads from this cover need it to comply with Facebook's text-overlay rules (under 20% text in early ad iterations; rules changed in 2024 but text-heavy covers still underperform).

**Showcase / shop banner** — 1920×1005 px. Used at the top of a page's Shop or Showcase tab.

Facebook ad image sizes (Meta Ads Manager)

**Feed ad (single image)** — 1080×1080 (1:1) or 1080×1350 (4:5 vertical). **Story ad** — 1080×1920 (9:16). **Reels ad** — 1080×1920 (9:16). **Right column ad** (desktop only) — 1200×628 (1.91:1). **Marketplace ad** — 1080×1080 (1:1). **Carousel ad** — 1080×1080, 2-10 slides, all same ratio. **Collection ad** — 1080×1080 main + 4 product images. **Video ad** — multiple ratios supported, with 1:1 and 4:5 highest-performing on Facebook feeds.

Meta auto-crops if you upload other dimensions but the result is unpredictable. Pre-sizing per placement reduces ad-review rejection and gives the cleanest creative.

Why Facebook image sizes matter more than they seem

Facebook's algorithm uses engagement rate as a top ranking signal. Wrong-sized images get less engagement because:

- Auto-cropped photos lose composition - Compressed photos look unprofessional and depress click-through - Mismatched aspect ratios trigger Facebook to display the post smaller in feed (especially horizontal posts on mobile)

Pre-sizing fixes all three. Two clicks with the resizer above gets you a clean, full-display post that the algorithm rewards.

Conseils pour tirer le meilleur parti de cet outil

  • Cover photo: design the center 640 px as the safe zone. Mobile crops the sides.
  • Posts: 1200×630 universal, 1080×1350 vertical for mobile feed dominance.
  • Event/group covers: 1920×1080 — drives 30-50% higher join rates than stock images.
  • Profile pic displays as circle. Center the subject; leave edge margin.
  • Marketplace + ad images: pre-size per placement. Auto-crop tanks ad performance.

Questions fréquentes

What is the Facebook post image size?

1200×630 pixels (1.91:1) for universal compatibility. 1080×1350 (4:5 vertical) for mobile-first feeds.

What is the Facebook cover photo size?

820×312 pixels on desktop, 640×360 on mobile. Design the center 640 px as the safe zone — mobile crops the sides.

Is the Facebook image resizer free?

Yes. Free, no signup, no watermark. Resize any image to Facebook-spec dimensions in one click.

What is the Facebook profile picture size?

170×170 pixels on desktop, 128×128 on mobile. Upload at 320×320 or larger for retina sharpness. Displays as a circle.

What is the Facebook event cover size?

1920×1080 pixels at a 16:9 aspect ratio. Displays at the top of the event page and in event invitations.

What is the best size for a Facebook ad image?

1080×1080 (1:1) for feed and Marketplace ads. 1080×1920 (9:16) for Story and Reels ads. 1200×628 (1.91:1) for right-column desktop-only ads.

Why does Facebook crop my photos?

You uploaded at the wrong aspect ratio for the placement. Different formats — feed, cover, event, ad — each have specific ratios. Pre-resize per placement to prevent unwanted crops.

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