What is an image resizer?

An image resizer is a tool that changes the width and height resolution (pixels) or file size of an image while preserving visual clarity.

How do I resize an image without losing quality?

To maintain high quality, use high-quality resampling algorithms (bicubic interpolation), lock aspect ratio to avoid stretching, and choose output formats like WebP or high-quality JPG.

Can I resize JPG images?

Yes, PixDok supports JPG, JPEG, PNG, WebP, HEIC, GIF, and BMP formats.

Can I resize PNG images?

Yes! Transparency in PNG images is fully preserved with a transparent background canvas.

Can I resize images to a specific pixel size?

Yes, enter your exact target width and height in pixels or choose from social media and HD presets.

Can I resize an image to 100KB?

Yes, enable the Target File Size option and select 100 KB. The tool will adjust quality and resolution to hit your target file size.

Are my images uploaded to PixDok?

No! PixDok processes your images 100% locally inside your web browser. Your photos are never uploaded or stored on any server.

Image Resizer - Resize Images Online Free

Image Preview

image.png

Original: 1920 × 1080 px

Size: 2.4 MB

Resize Settings

Width

Height

Popular Preset Sizes

Social Media

Instagram Square

1080 × 1080

Instagram Portrait

1080 × 1350

Instagram Story

1080 × 1920

Facebook Post

1200 × 630

Target File Size (Optional)

Output Format

Quality 90%

Advanced Settings

Your images stay private — processing happens in your browser.