Image Resizer Online — Resize to Exact Pixels Free
Our image resizer online lets you resize JPG, PNG, and WebP images to any exact pixel dimension instantly. Maintain aspect ratio, use 8 social media presets, and download in seconds — 100% free and private.
Image Resizer Online
Upload your image, set dimensions, and download instantly
Drop your image here to resize it
or click to browse from your device
How to Use the Image Resizer Online
Upload Your Image
Click or drag & drop your JPG, PNG, WebP, or GIF image into the resizer. Max 10MB supported.
Set Your Dimensions
Enter exact pixel dimensions manually or pick a quick preset for Instagram, YouTube, Facebook, and more.
Lock Aspect Ratio
Enable Aspect Ratio Lock to avoid distortion — changing width auto-adjusts height proportionally.
Download Your Result
Click Resize Image, preview the result, then download your perfectly sized image instantly — no watermark.
About This Free Resizer Tool
This image resizer online runs entirely in your browser using the HTML5 Canvas API — your photos are never uploaded to any server. It supports aspect ratio locking to prevent distortion, 8 social media presets, and optional format conversion to JPG, PNG, or WebP — all in a single step.
Common Image Sizes by Platform
| Platform / Use | Recommended Size | Ratio | Format |
|---|---|---|---|
| Website Header | 1920 × 1080 px | 16:9 | JPG / WebP |
| Blog Featured Image | 1200 × 630 px | 1.91:1 | JPG / WebP |
| Facebook Post | 1200 × 628 px | 1.91:1 | JPG |
| Instagram Post | 1080 × 1080 px | 1:1 | JPG |
| Instagram Story | 1080 × 1920 px | 9:16 | JPG |
| Twitter Post | 1200 × 675 px | 16:9 | JPG |
| Twitter Header | 1500 × 500 px | 3:1 | JPG |
| LinkedIn Post | 1200 × 627 px | 1.91:1 | JPG |
| YouTube Thumbnail | 1280 × 720 px | 16:9 | JPG |
| Profile Picture | 400 × 400 px | 1:1 | JPG / PNG |
| E-commerce Product | 800 × 800 px | 1:1 | JPG / WebP |
| Email Newsletter | 600 × 300 px | 2:1 | JPG |
Best Free Image Resizer Online
Exact Pixel Dimensions
Set precise width and height in pixels. Perfect for social media, web design, print, and professional projects.
Aspect Ratio Lock
Prevent image distortion. Lock ratio and changing one dimension auto-adjusts the other proportionally.
8 Social Media Presets
One-click presets for Instagram, Facebook, Twitter, YouTube, HD and more — no manual calculation needed.
100% Private
All resizing happens in your browser. Your images are never uploaded to any external server.
Format Conversion
Convert to JPG, PNG, or WebP while resizing — two operations in a single step.
100% Free
No limits, no watermarks, no signup. Use this image resizer online as many times as you need.