Image Resizer

Resize images to exact dimensions or scale by percentage. Free, fast, and completely private — your images never leave your device.

Choose an image to resize

Supports PNG, JPG, WebP, and other formats

Resize Images Online Free

Whether you're preparing images for social media, websites, email, presentations, or print, our free image resizer makes it easy to change image dimensions to exactly what you need. Set precise pixel dimensions, scale by percentage, or maintain aspect ratio — all instantly in your browser.

Our free image resizer works entirely in your web browser using the HTML5 Canvas API. This means your images never leave your device — they're not uploaded to any server. This approach ensures complete privacy and provides instant results. Unlike iLoveIMG, Canva, PicResize, or Adobe Express which upload your files to their servers, Browser Image Converter keeps everything local and private.

How to Resize Images

  1. Select your image: Click the upload area or drag and drop your image file.
  2. Set dimensions: Enter your desired width and height in pixels, or choose a scaling percentage.
  3. Maintain aspect ratio (optional): Lock the aspect ratio to prevent distortion, or unlock for exact dimensions.
  4. Download resized image: Click resize and download your resized image instantly.

Why Choose Our Image Resizer?

  • 100% Private: All processing happens in your browser — no server uploads, unlike iLoveIMG or Canva
  • Exact Dimensions: Set precise pixel sizes for any use case
  • Aspect Ratio Lock: Prevent distortion with automatic proportional scaling
  • Percentage Scaling: Scale images by percentage (50%, 75%, 200%, etc.)
  • Instant Results: No waiting for uploads or processing queues
  • No Limits: Resize unlimited images with no daily quota restrictions
  • Always Free: No subscriptions, no watermarks, no hidden fees
  • Works Offline: Once loaded, the tool works without internet connection

Common Image Sizes for Social Media & Web

  • Instagram Post: 1080 x 1080 pixels (square)
  • Instagram Story: 1080 x 1920 pixels (vertical)
  • Facebook Post: 1200 x 630 pixels
  • Facebook Cover: 820 x 312 pixels
  • Twitter/X Post: 1200 x 675 pixels
  • LinkedIn Post: 1200 x 627 pixels
  • YouTube Thumbnail: 1280 x 720 pixels
  • Pinterest Pin: 1000 x 1500 pixels
  • Website Banner: 1920 x 1080 pixels (Full HD)

After resizing, consider using our Image Compressor to further reduce file sizes for faster loading. You can also convert formats using our PNG to JPG converter or PNG to WebP converter for optimal web performance.

Frequently Asked Questions

How do I resize an image to exact dimensions?
Simply upload your image to our resizer, enter your desired width and height in pixels, and click resize. You can lock the aspect ratio to prevent distortion, or unlock it to force exact dimensions. The resized image downloads instantly — no waiting, no sign-up required.
What are the best image sizes for social media?
Common social media image sizes include: Instagram posts (1080x1080), Instagram stories (1080x1920), Facebook posts (1200x630), Facebook cover (820x312), Twitter/X posts (1200x675), LinkedIn posts (1200x627), YouTube thumbnails (1280x720), and Pinterest pins (1000x1500). Our resizer makes it easy to hit these exact dimensions.
Does resizing an image reduce quality?
Scaling an image down (making it smaller) generally maintains good quality because pixels are being removed. Scaling up (making it larger) can reduce quality because new pixels must be interpolated, potentially causing blurriness. For best results, avoid enlarging images beyond 150-200% of their original size.
How do I maintain aspect ratio when resizing?
Our image resizer locks the aspect ratio by default. When you change the width, the height automatically adjusts proportionally (and vice versa). This prevents your image from appearing stretched or distorted. You can unlock the aspect ratio if you need to force specific non-proportional dimensions.
Is this image resizer safe? Are my images uploaded?
Yes, it is completely safe. Your images are NEVER uploaded to any server. All resizing happens locally in your web browser using the HTML5 Canvas API. Your files never leave your device, ensuring complete privacy and security. Unlike iLoveIMG, Canva, or PicResize which upload your files to their servers, Browser Image Converter keeps everything local.

Related Image Tools

Image Compressor

Reduce file size while maintaining quality after resizing

Try it now

Image Cropper

Crop images to remove unwanted areas before resizing

Try it now

PNG to JPG Converter

Convert PNG to JPG for smaller file sizes after resizing

Try it now