Image Resizer
Make an image smaller while keeping its original proportions. Set maximum width and height in pixels; the image fits inside that box without cropping, stretching or enlarging.
Drop your image here, or browse
Supports JPG, PNG, WebP, GIF, BMP · Max 1GB · always free
JPG, PNG and WebP resize in your browser when supported. Other formats or processing fallbacks use our server.
Choose the right image operation
Resize to change dimensions, crop to remove edges, or prepare a file for a specific upload limit.
- Check the final dimensions and file size before uploading.
Continue your task
- Crop an image
Select an area visually or enter exact pixel dimensions.
- Prepare an image for an upload limit
Choose a KB limit, set maximum dimensions and inspect the result.
How to Use Image Resizer
Upload an image
Drag and drop a JPG, PNG, or WEBP image, or click to browse.
Set the dimensions
Enter maximum width and height in whole pixels from 1 to 10,000. The image fits inside these bounds and keeps its proportions.
Download the resized image
Download and check your resized image. Smaller source images are not enlarged; use Image Cropper for a different shape.
About Image Resizer
Fit an image within size limits
Use this tool to reduce oversized photos for web pages, email or upload forms with maximum pixel dimensions. For example, a 1600 × 900 photo fitted inside a 1000 × 1000 box becomes 1000 × 563 pixels. It does not become square.
Keep the original proportions
Linking the dimension fields calculates the other value from the original image ratio. Unlink them to enter an independent bounding box. The output always preserves proportions, even when the fields are unlinked. Smaller source images are not enlarged.
Processing and limits
Choose one image up to 1GB and enter whole-number maximum dimensions from 1 to 10,000 pixels. JPG, PNG and WebP are processed in your browser when supported; other formats and processing fallbacks use the server. Device memory can limit the images your browser can process.
Common uses for Image Resizer
- Reduce a large photo to fit a website’s maximum dimensions
- Make smaller images for email attachments
- Create proportional thumbnails without cropping
Frequently Asked Questions
Why is my output smaller than the dimensions I entered?
The values are maximum bounds. The image fits inside both while preserving its proportions, and it is never enlarged. Use Image Cropper when you need to remove edges for a different shape.
Does resizing affect image quality?
Reducing dimensions removes pixels, and JPG or WebP output is re-encoded. Keep your original and inspect the downloaded image before replacing it.
Can I resize by percentage or stretch the image?
This tool accepts pixel dimensions only. It preserves proportions and does not offer stretching or enlargement.
Can I resize images in bulk?
This tool processes one image at a time. Use Batch Image Preparation, linked below, to resize several images together.