ResizeWizard
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Your image stays on your device. ResizeWizard edits with browser APIs where possible.

Réduire la taille d’image

Reduce an image to a target file size in KB or MB with honest warnings when the target cannot be met.

CommencerOutils

Reduce size

Target exact KB or MB

Upload an image to start editing privately in your browser.

How to use this réduire la taille d’image tool

  1. Upload the image rejected by the form or portal.
  2. Enter the maximum size and choose KB or MB.
  3. Choose JPG or WebP for photos and set the highest quality you want ResizeWizard to test.
  4. Reduce the file, confirm the reported output size, and download.

Check the result before downloading

  • The reported output is at or below the stated limit.
  • The image remains readable at the destination's display size.
  • The chosen format is accepted by the upload form.

Useful outcomes

When this dedicated tool is the right choice

Aim for a real file-size ceiling, see whether the target was met, and download the closest useful result.

Government and school forms

Job application portals

Support-ticket attachments

Strict CMS and marketplace limits

Frequently asked questions

Réduire la taille d’image FAQ

Can every image reach every target?

No. A very detailed image may require smaller dimensions or visible quality loss. ResizeWizard reports the closest result instead of pretending the limit was met.

Should I use KB or MB?

Use the same unit shown by the destination. One MB is approximately 1,024 KB in the browser workflow.

How do I make the file even smaller?

Reduce dimensions, choose WebP or JPG, and lower quality gradually while checking important details.

Related tools

Only continue if the image needs another change

This page completes one job. These separate tools are available for a different next step.

Français

Recadrer une image

Crop a photo to custom dimensions or common aspect ratios like 1:1, 4:3, 16:9, and 9:16.

Open dedicated tool Français

Redimensionner une image

Resize an image by exact width and height in pixels, with an optional fixed aspect ratio.

Open dedicated tool Français

Convertir une image

Convert an image to JPG, PNG, WebP, AVIF, TIFF, or GIF when your browser supports the format.

Open dedicated tool Français

Compresser une image

Compress an image automatically while keeping a useful balance of clarity and file size.

Open dedicated tool Français

Miroir d’image

Flip an image horizontally or vertically without uploading it to a server.

Open dedicated tool Français

Faire pivoter une image

Rotate an image left, right, 180 degrees, 270 degrees, or by a custom angle.

Open dedicated tool Français

Pixelliser une image

Pixelate the whole image or a selected rectangular area with adjustable block size.

Open dedicated tool Français

Image noir et blanc

Convert a photo to grayscale or strict black and white.

Open dedicated tool
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