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Comment utiliser Redimensionneur d'image
- 1
Upload your image
Drop a JPG, PNG, or WebP file onto the upload area.
- 2
Set the new dimensions
Enter width and height in pixels, or switch to percentage mode. Enable 'Lock ratio' to preserve proportions.
- 3
Download the resized image
Click Download to save your resized file.
Fonctionnalités
- +Resize by exact pixel dimensions or percentage
- +Aspect ratio lock to prevent distortion
- +Supports JPG, PNG, and WebP
- +Instant browser-based processing — no upload
- +No watermark, no signup, completely free
Questions fréquentes
What's the maximum size I can resize to?
There's no strict maximum, but very large dimensions (above 8000 px) may be slow on mobile devices.
How do I keep the original proportions?
Enable the 'Lock aspect ratio' toggle. Changing width will automatically update height and vice versa.
Will resizing reduce quality?
Downscaling is lossless in terms of content; upscaling may look soft. For AI-powered upscaling, use the AI Upscaler tool.
Can I resize to percentage?
Yes — switch the unit toggle from 'px' to '%' and enter a percentage like 50 to halve the dimensions.
Outils connexes
If you need the next step, try Rogner l'image, Compresseur d'image, Agrandisseur IA, Traitement par lot.