Online Image Resizer

Resize images online for free — fast, private, and 100% local. Works with JPG, PNG, GIF, WebP, HEIC and exports JPG/PNG/WebP/AVIF. Ideal for social, blogs, and web.

Upload Image

Drop, select, or paste an image to start.

  • Local processing for privacy
  • Custom dimensions & presets
  • Quality & format control
  • Aspect ratio lock
  • Smart Cover (subject-aware crop)
  • AI background removal (optional)

Working…

Initializing…

Resize images online, directly in your browser

This tool lets you resize images quickly without uploading them to a server. Everything runs locally in your browser, which means your images stay private and are never sent anywhere.

What this image resize tool is for

Use this tool when you need to change the dimensions of an image for a specific purpose, such as social media uploads, website images, email attachments, or documents. You can resize by exact width and height or use presets for common platforms.

Who this tool is useful for

This image resizer is built for everyday users, creators, and developers who want a fast, reliable way to resize images without installing software. It’s especially useful if you care about privacy or you’re working with sensitive images.

When to use image resizing

Resizing is commonly used to meet upload requirements, fit images into specific layouts, or reduce file size for faster loading. For example, resizing images before uploading them to a website can improve performance and page speed.

How the resize process works

Your image is loaded into your browser and resized using standard canvas processing. No external servers or APIs are involved. Once resized, you can download the result immediately in your chosen format.


Related tools

Need a different workflow? These tools work well alongside resizing.


See it in action

Same image, three sizes — a quick visual of resized output.

Orange cat pilot illustration (large)
Large (≈360 px)
Orange cat pilot illustration (medium)
Medium (≈240 px)
Orange cat pilot illustration (small)
Small (≈160 px)

Image Resizer FAQ - Answers to Common Questions

Upload your image, set dimensions or use presets, adjust settings, and download the resized image — all locally in your browser.

Yes, 100% free with no account needed. Your images never leave your device.

Supports JPG, PNG, GIF, WebP, and HEIC for input, with output in JPG, PNG, WebP, or AVIF.

Yes, use presets for Instagram posts/stories, YouTube thumbnails, Facebook covers, and more.

Absolutely, the tool is fully responsive and works on desktops, tablets, and mobiles.

Use our quality slider to maintain high resolution while resizing. Lock aspect ratio to avoid distortion.

Yes, our bulk image resizer tool allows you to process multiple files at once for free.

Our AI-powered background removal uses local browser processing to detect and remove backgrounds, creating transparent PNGs.