Image Resizer

Resize images for social media, web, or custom dimensions -- free and private

Drop images here or click to upload

Supports JPG, PNG, WebP -- select multiple files for batch resize

Social Media Presets

One-click resize for Instagram, Facebook, Twitter, YouTube, and LinkedIn.

Batch Processing

Upload multiple images and resize them all at once with the same settings.

100% Private

Images are resized in your browser using Canvas API. Nothing is uploaded to any server.

How to Resize Images Online

Resizing images is essential for optimizing them for the web, social media, email, or print. Our free Image Resizer lets you adjust image dimensions directly in your browser with no file uploads required, ensuring complete privacy and instant results.

Steps to Resize

  1. Upload one or more images by clicking the upload area or dragging and dropping files
  2. Choose a resize mode: custom dimensions, percentage scale, or a social media preset
  3. Select an output format (PNG, JPG, or WebP) and adjust quality if needed
  4. Click the resize button and download your resized images

Social Media Image Size Guide

Each social media platform has recommended image dimensions for the best visual results:

  • Instagram Post: 1080 x 1080px (square) -- the standard feed post size
  • Instagram Portrait: 1080 x 1350px -- takes up more screen space in the feed
  • Facebook Cover Photo: 820 x 312px -- the banner image at the top of your page
  • Twitter/X Header: 1500 x 500px -- the profile banner image
  • YouTube Thumbnail: 1280 x 720px -- custom video thumbnail at 16:9 ratio
  • LinkedIn Banner: 1584 x 396px -- personal or company page background

Output Formats Explained

  • PNG: Lossless format, best for graphics, screenshots, and images with text. Larger file size but no quality loss.
  • JPG: Lossy compression, best for photographs. Adjustable quality slider lets you balance file size vs. quality.
  • WebP: Modern format with excellent compression. Smaller files than JPG at similar quality. Supported by all modern browsers.

Privacy and Security

Your images never leave your device. All resizing is performed locally in your browser using the HTML5 Canvas API. No files are uploaded to any server, making this tool completely private and secure. Your images remain on your computer at all times.

Batch Image Resizing

Need to resize multiple images at once? Upload as many images as you like and they will all be resized with the same settings in a single batch. This is especially useful when preparing a set of images for a website, social media campaign, or email newsletter where consistent dimensions are important.