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Change WEBP size

Définissez une largeur et une hauteur précises pour votre fichier WEBP, ou redimensionnez en pourcentage.

Réponse rapide

To resize a WEBP, upload it to ezimagetools.com and type the width you need in pixels, or drag the percentage slider. With the aspect-ratio lock on, the height fills itself in so the picture is never stretched. Resizing a WEBP keeps both its transparency and its efficiency. It is free and needs no account.

En un coup d'œil

Formats acceptés
WEBP files, up to 20 at a time
Vous récupérez
The same picture as a WEBP at your chosen width and height
Taille maximale du fichier
50 Mo par fichier
Fichiers par lot
Jusqu’à 20 à la fois
Prix
Gratuit, sans limite sur le nombre d’images traitées
Compte requis
Non — aucune inscription nécessaire
Vos fichiers sont supprimés
Automatiquement, dans l’heure suivant le traitement

Mis à jour 2026-08-31

Comment redimensionner un webp

  1. Add your WEBP files

    Tap the upload box and choose the WEBP pictures you want to resize.

  2. Pick pixels or percentage

    Type the width you need, or drag the slider to scale the whole image.

  3. Keep the shape

    Leave the aspect-ratio lock on and the height fills in for you, so nothing looks stretched.

  4. Resize and download

    Press Resize, then save the new WEBP files.

What a WEBP is

WEBP is Google's web image format. It does everything JPG and PNG do — lossy or lossless, with or without transparency — in roughly 25 to 35% fewer bytes, and every browser released since 2020 displays it.

Pixels or percentage?

Use pixels when something else sets the rules — an upload form asking for 1200 pixels wide, or a print shop asking for an exact size. Use percentage when you just want the picture smaller and do not care about the exact number.

Questions fréquentes

Does resizing a WEBP reduce its quality?

Resizing a WEBP keeps both its transparency and its efficiency. If the picture is headed for a web page, resizing it to the size it will actually be displayed at saves more bytes than any compression setting will.

How do I resize a WEBP without stretching it?

Leave the aspect-ratio lock switched on and change only one dimension — the other follows automatically. Stretching happens when the width and the height are changed by different amounts, which the lock makes impossible.

What size should a WEBP be for a website?

Match the size it will actually be displayed at, then double it if you are targeting high-density phone screens. A full-width banner is usually 1600 to 2000 pixels wide; anything inside a column rarely needs more than 800. Sending a 4000-pixel image to a 400-pixel slot wastes your visitor's data and nothing else.

Can I enlarge a WEBP without it going blurry?

Not really. Enlarging cannot add detail that was never captured, so an upscaled picture always looks softer than the original. Start from the largest copy of the image you have rather than growing a small one.

What is the difference between resizing and compressing a WEBP?

Resizing changes how many pixels the picture has. Compressing changes how many bytes those pixels take to store. Resizing to smaller dimensions also cuts the file size, and doing both — resize first, then compress — gives the smallest result that still looks right.

Is it safe to resize WEBP files online?

Yes. Your file is processed on our server and deleted automatically within one hour. We never look at it and you do not need an account.

Your images are processed on our server and deleted automatically within one hour. We never look at them and you do not need an account.

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