Redimensionner une Image Pixels · Pourcentage · Échelle · Remplissage
Resize photos to exact pixels or by percentage without installing software. Lock the aspect ratio, scale to fit a canvas, or add padding when a platform wants a fixed box.
Déposez une image ici ou cliquez pour parcourir
Jusqu'à 10 images par lot (10MB chacune). Téléchargez ou partagez, effacez la file et commencez le lot suivant à tout moment. JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, SVG, TIFF.
Mes partages actifs
Les partages actifs sont supprimés après 48 h · jusqu'à 50 Mo enregistrés
Chargement de vos partages actifs…
Comment ça marche
Téléverser
Ajoutez l'image à redimensionner.
Choisir le type
Pixels pour largeur/hauteur exactes ou pourcentage pour une échelle proportionnelle.
Définir les dimensions
Saisissez la taille cible et choisissez échelle ou remplissage.
Télécharger
Enregistrez l'image redimensionnée ou partagez un lien.
When you should resize (not compress)
Use resize when a website, app, print shop, or social network asks for a specific width and height. Compressing alone reduces file weight but leaves the pixel dimensions unchanged — forms that reject “image too large” usually mean pixels, not kilobytes.
Pixels vs percent
Pixels are best when you know the target (for example 1080×1080 or 1920×1080). Percent is faster when you only need something half / 70% / double the original for a quick draft. Keep aspect ratio locked unless you intentionally need a stretch.
Fit modes that avoid ugly stretch
- Scale — sizes the whole image to your width/height; may leave empty space if only one side is constrained.
- Padding — keeps the full image visible and fills unused canvas with color or transparency (useful for logos and product shots).
- Crop after resize — when a platform crops from the center, set the final ratio first with the crop tool, then export.
Quality tips
Downscaling usually stays sharp. Upscaling invents pixels and softens detail — enlarge only when a site refuses a small file, and prefer PNG/WebP for graphics with text. Soft export: JPG quality 80–90 for photos, PNG for screenshots with UI.
Privacy: preview runs in your browser. Choose Download to keep the file on your device, or Share for a temporary link (active shares auto-delete within 48 hours). See our privacy policy.
How to resize an image en ligne
Open the tool above, upload your image (JPG, PNG, WebP, HEIC, AVIF, and more), adjust the settings, and preview the result in your browser. When you are happy with the output, click Download to save it to your device or Share to get a temporary link. No account is required, and you can process jusqu'à 10 images per batch.
Why use imageresize.cc for image resizing?
Tips for Image Resizer — Change Image Dimensions en ligne
Start from the highest-quality source you have, lock ratio d'aspect when resizing for social or print, and download a copy before trying a different format.
Need a different workflow? Browse our full tools directory for resize, compress, convert, crop, and social-media presets.