About This Tool
What is Image Resizer?
A tool for resizing images to custom dimensions. Maintain aspect ratio or freely set width and height. Useful for social media uploads, website optimization, and image standardization.
How to Use
- Click 'Select Image' to upload an image.
- Enter the desired width and height.
- Check 'Maintain aspect ratio' to preserve proportions.
- Set format and quality, then download.
Key Features
- Free resizing to any dimensions
- Aspect ratio preservation option
- Output format selection (PNG, JPG, WebP)
- Quality adjustment
Tips
- Recommended social media sizes: Instagram 1080x1080, Facebook cover 820x312, Twitter 1200x675.
- Maintaining aspect ratio prevents image distortion.
- For web images, 1920px width is sufficient for most screens.
Frequently Asked Questions
What are the recommended image sizes for social media platforms?▼
Instagram post: 1080x1080 (square) or 1080x1350 (portrait). Facebook cover: 820x312, post: 1200x630. Twitter/X header: 1500x500, post: 1200x675. LinkedIn banner: 1584x396. YouTube thumbnail: 1280x720. Always check current platform guidelines as they may change.
Does resizing an image reduce its quality?▼
Enlarging an image always reduces quality because new pixels must be interpolated (guessed). Shrinking an image discards pixels but generally looks fine. For best results, start with a high-resolution original and only resize down. The quality setting affects JPG/WebP compression, not the resize algorithm.
What does 'maintain aspect ratio' mean?▼
Aspect ratio is the proportional relationship between width and height (e.g., 16:9, 4:3). When enabled, changing the width automatically adjusts the height to keep the same proportions, preventing the image from appearing stretched or squished.
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