Image Resizer
Resize images to any exact dimension online for free. Set width and height in pixels without losing quality.
Upload an image to see live preview
Image Resizer — image resizer online free
Flixfer's Image Resizer lets you resize any image to exact pixel dimensions — whether for social media templates, email signatures, product listings, or website banners. Set precise width and height, optionally maintain aspect ratio, and download your resized image instantly. All processing runs in your browser.
Features
- Set exact pixel width and height
- Optional aspect ratio lock to prevent distortion
- Supports JPEG, PNG, WebP, and GIF
- Live preview of resized dimensions
- Download in original or specified format
- Browser-based — files never uploaded
How to use Image Resizer
- Open the Image Resizer tool.
- Upload your image.
- Enter the desired width and/or height in pixels.
- Toggle "Maintain aspect ratio" if needed.
- Click Resize and download your image.
FAQ
Standard Social Media Image Sizes (2024)
| Platform | Image Type | Recommended Size |
|---|---|---|
| Square Post | 1080 × 1080 px | |
| Story / Reel | 1080 × 1920 px | |
| Cover Photo | 820 × 312 px | |
| Twitter/X | Header Image | 1500 × 500 px |
| Profile Banner | 1584 × 396 px | |
| YouTube | Thumbnail | 1280 × 720 px |
| Profile Picture | 640 × 640 px |
When to Resize vs. When to Crop
Resize when you need the entire image at a different scale — for example, reducing a 4000px wide photograph to 800px for a website.
Crop when you need to change the aspect ratio or focus on a specific area — for example, turning a landscape 16:9 photo into a square 1:1 Instagram post. Use our Image Cropper for this use case.
Resolution Explained: PPI vs. DPI
A common source of confusion is the difference between PPI (pixels per inch, used for screens) and DPI (dots per inch, used for print). For web use, pixel dimensions are what matter — a 1200×800px image will look the same on any monitor regardless of its DPI setting. For print, DPI matters: 300 DPI is the industry standard for high-quality printing.
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Benefits
- Meet exact size requirements for social platforms, ad networks, and print
- Reduce file sizes by resizing oversized images
- No distortion with aspect ratio lock
- Free with no usage limits