Online Image Resizer
Free online image resizer to easily resize, compress, and edit photos in KB or pixels for FREE.
Drop your images here to resize
or, drag and drop images here
Resize in pixels, cm, mm, or inches • Batch mode supported
How to Resize Images Online in 3 Steps
Select or Drop Images
Choose single or multiple photos from your device, or simply paste a screenshot using Ctrl+V.
Set Dimensions & Unit
Enter your desired width and height in px, cm, mm, or inches, and choose to lock aspect ratio or set target KB.
Instant Download
Preview the before/after dimensions and download your resized photos individually or as a single ZIP archive.
Frequently Asked Questions
How do I resize an image to exact pixel dimensions without losing quality?
Upload your image, specify the exact width and height in pixels, and keep the aspect ratio locked if you want to avoid visual distortion. Our engine uses high-precision bicubic canvas resampling to retain crisp details, clean edges, and vibrant color contrast when scaling down, avoiding the blurriness common in basic image editors.
What is the difference between resizing an image and compressing it?
Resizing alters the physical pixel dimensions of an image (such as scaling from 1920×1080 to 800×600), directly changing its display size on screens or paper. Compressing optimizes internal color encoding and removes redundant file data to reduce file weight in kilobytes without changing the pixel width or height of the picture.
How do I resize an image to centimeters (cm) or inches for physical printing?
Switch the unit toggle to CM or INCH, enter your target physical print size (such as 3.5×4.5 cm for passport photos), and select 300 DPI for sharp print reproduction. The resizer automatically calculates the exact pixel count required for high-resolution laboratory photo printing, ensuring your photo prints at the correct physical scale.
Will changing the width and height distort or stretch my picture?
Not if you keep the aspect ratio lock enabled. When locked, adjusting either the width or height automatically recalculates the other dimension proportionally. If your target requires custom non-proportional dimensions, you can unlock the ratio, or crop the image first to frame your subject neatly before applying new dimensions.
Is it safe to resize confidential documents and private photos here?
Yes, completely safe. MyImageDesk executes every operation locally inside your browser session using HTML5 Canvas and WebAssembly. Your photos, government IDs, and documents never upload to any remote server or third-party database, providing complete confidentiality for passport photos, exam admit cards, signatures, and personal pictures.