Skip to content

Tool

Image Resize Online Free

Resize images to any dimension with preset or custom sizes. No sign up required.

Drop image here or click to upload

Your file stays in your browser — nothing is uploaded

How to Resize an Image Online

1

Upload image

Select or drag your image file.

2

Set dimensions

Choose a preset or enter custom size.

3

Download

Download the resized image.

Resize Images Online — Free Image Resizer

Need to resize an image for a passport application, social media profile, or website? Our free online image resizer lets you scale any JPG, PNG, or WebP image to exact pixel dimensions — all directly in your browser with no file uploads.

Choose from popular presets like India Passport (3.5x4.5cm), US Passport (5.1x5.1cm), Social Media (1080x1080), and HD (1920x1080), or enter your own custom width and height. The maintain-aspect-ratio option ensures your image stays proportional, preventing unwanted stretching or distortion.

All resizing happens locally using the HTML5 Canvas API — your image never leaves your device. This makes it the safest way to resize photos for official documents, online profiles, or any other purpose. Works on Chrome, Firefox, Safari, and Edge.

FAQ

Image Resize | PDFOnlineToolbox

Image Resize | PDFOnlineToolbox

How do I resize an image?

Upload your image, choose a preset or enter custom dimensions, and click Resize. The resized image is generated instantly in your browser.

What presets are available?

Presets include India Passport (3.5x4.5cm), US Passport (5.1x5.1cm), Visa Photo (5.1x5.1cm), ID Card (2.5x3.5cm), Social Media (1080x1080), and HD (1920x1080).

Will resizing reduce image quality?

Upscaling an image beyond its original size may reduce sharpness. Downscaling typically preserves quality well. The output format and dimensions both affect the final result.

Is my image safe?

Yes. All processing happens in your browser. Your image never leaves your device.

Canvas Resampling and Dimensional Scaling

Resizing images utilizes HTML5 canvas bicubic interpolation algorithms to scale pixel matrices to exact target dimensions or percentage ratios. All pixel resampling operates locally in your browser, enabling rapid resizing without compression artifacts or server uploads.

Key Use Cases

  • Scaling portrait photos to exact pixel dimensions for passport and visa applications
  • Reducing high-resolution website hero banners to optimize page load speeds
  • Preparing standardized product images for e-commerce catalog uploads

Privacy & Security Guarantee

Because this utility executes entirely within your web browser's local sandbox, your sensitive files are never uploaded to cloud servers, stored in temporary directories, or inspected by third-party logs. This ensures complete data confidentiality and compliance with privacy standards.

Related Tools

M

Merge PDF

Combine multiple PDF files into a single document. Drag to reorder pages before merging.
S

Split PDF

Separate a PDF into multiple files. Split by page range or extract every page individually.
D

Delete PDF Pages

Remove unwanted pages from a PDF. Select and delete specific pages with a visual preview.
E

Extract PDF Pages

Pull specific pages from a PDF and save them as a new standalone document.
R

Reorder PDF Pages

Drag and drop pages to rearrange the order of your PDF document exactly how you want.

 View all tools →