Free Online Image Resizer
Quickly resize any picture to custom dimensions in pixels, centimeters, or inches. Maintain aspect ratio or stretch to exact portal requirements.
Drop your image here or browse files
JPG, PNG, WEBP • Fast, private & simple
Technical Specifications & Format Limits
Calibrated to meet strict administrative portal guidelines and high-resolution print standards.
| Units Supported | px, cm, mm, inch (at 300 DPI) |
| Max Resolution | Up to 8000 x 8000 px |
| Aspect Ratios | 1:1, 4:5, 16:9, 3:2, Custom |
| Privacy | 100% In-Browser |
Why Choose PhotoKB's Online Image Resizer - Resize by Pixels, CM & Inches?
Engineered with high-fidelity canvas algorithms to avoid pixel distortion and rejection errors.
How to Use Online Image Resizer - Resize by Pixels, CM & Inches in 3 Simple Steps
No technical skills needed. Complete your compression in under 5 seconds.
Upload Image
Choose the photo you want to resize from your computer or phone.
Enter New Dimensions
Type your desired width and height, choose units (px/cm/in), and toggle aspect ratio.
Apply & Download
View the instant preview and click Download Resized Image.
Common Use Cases & Supported Portals
Pre-configured to strictly comply with official examination authorities and government platforms.
Exam Dimension Specifications
Set exact 350x450 px or 200x230 px required by competitive exam forms.
Social Media Banners & Posts
Resize for YouTube thumbnails (1280x720), Instagram posts (1080x1080), and LinkedIn banners.
Print & Framing Dimensions
Convert digital photos to exact 4x6 inch, 5x7 inch, or A4 print layouts.
Frequently Asked Questions about Online Image Resizer - Resize by Pixels, CM & Inches
Answers to common questions regarding specifications, rejection errors, and resolution.