Free Image Resizer — Resize for Instagram, Facebook & More

Resize images to any dimension instantly. Social media presets for Instagram, Facebook, Twitter. Aspect ratio lock. No watermark, free to use.

Key Features

  • Uses Sharp library - same engine used by major platforms
  • Files auto-deleted within 1 hour
  • No watermarks on resized images
  • No account needed
  • Maintains EXIF data when appropriate

How It Works

  1. Image resizing uses Sharp, a high-performance Node.js image processing library
  2. Lanczos resampling algorithm maintains quality during resize
  3. Aspect ratio can be locked or unlocked for custom dimensions
  4. Social media presets use official recommended dimensions
  5. Images are processed on server and deleted within 1 hour

Frequently Asked Questions

What image formats can I resize?

We support JPEG, PNG, WebP, and GIF formats. You can also choose to convert the format during resize.

Will resizing reduce my image quality?

Our tool uses Lanczos resampling, which provides high-quality results. Enlarging images beyond their original size may show some softness, as no tool can add detail that was not in the original.

What are the social media preset sizes?

We include presets for Instagram posts (1080x1080), Facebook covers (820x312), Twitter headers (1500x500), LinkedIn banners, YouTube thumbnails, and more.

By Nuthu Mwangi · Image processing and web optimization · Last updated 2025-09-01

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