Exact, predictable sizing
Use precise pixel dimensions, proportional percentage scaling, familiar aspect ratios, or ready-made social and display presets.
All tools
Image tool · Exact control
Image Resizer
Resize to exact pixels or percentages, lock an aspect ratio, position a crop, or start from a practical preset.
Processed for this request, never stored
Drop an image to begin
JPEG, PNG, WebP, or AVIF · Maximum 25 MB
Live canvas
Upload an image to start
A focused image workspace.
Upload an image to set exact dimensions, lock an aspect ratio, choose a preset, and control the crop.
How it works
The right dimensions in three steps.
Choose the output frame first, then decide whether the image should fill it, fit inside it, or match it exactly. The processed preview shows the real exported result.
- 01
Upload an image
Choose a static JPG, PNG, WebP, or AVIF image up to 25 MB.
- 02
Set the frame
Enter exact dimensions or a percentage, lock the aspect ratio, and choose crop, fit, or stretch.
- 03
Position and export
Set the crop focus and zoom, preview the processed result, then download it in your preferred format.
A focused image editor
Precise enough for production. Simple enough for one task.
Focused crop control
Choose the important part of the image with a draggable focal point, nine-position grid, and crop zoom before processing.
Professional server rendering
Sharp and libvips apply auto-orientation, Lanczos resampling, colour handling, and format-native JPG, PNG, WebP, or AVIF encoding.
Image resizing questions
Dimensions, crops, quality, formats, and privacy.
How does the aspect-ratio lock work?+
When the lock is active, changing the width automatically updates the height and vice versa. You can use the original ratio, select a common ratio, or unlock the dimensions for a custom shape.
What is the difference between crop, fit, and stretch?+
Crop fills the requested size and removes pixels outside the selected frame. Fit keeps the complete image and adds canvas space when ratios differ. Stretch forces the image to the exact shape and can distort it.
Can I resize an image by percentage?+
Yes. Percentage mode scales both dimensions from the original image, from 1% to 500%, while preserving its original aspect ratio.
Can I choose which part remains after cropping?+
Yes. Click or drag on the image to set the crop focus, use the nine-position focus grid for precise alignment, and zoom further into the source when needed.
Does making an image larger improve its quality?+
No. Upscaling creates more pixels but cannot restore detail that was not present in the source. The tool warns when the requested output is larger than the original.
Which image formats are supported?+
The resizer accepts static JPEG, PNG, WebP, and AVIF images. It can keep the original format or export JPG, PNG, WebP, or AVIF. Animated images are rejected rather than silently losing frames.
Are my uploaded images stored?+
No. The image is processed for the current request and returned immediately. Uploads and results are not saved to a database or permanent server storage.
More focused tools, ready when you are.
Explore the growing collection for calculations, documents, writing, and everyday work.