Image Resizer
About this Image Resizer
Resize any image to exact pixel dimensions in your browser — no upload needed. Use the social media presets for instant sizing, or enter custom dimensions. Supports JPG, PNG, WebP, and GIF input files.
Social media presets included
- Facebook/OG image: 1200×630
- Instagram post: 1080×1080, Story: 1080×1920
- YouTube thumbnail: 1280×720
- Facebook cover: 820×312
- Twitter/X header: 1500×500
- WhatsApp profile picture: 800×800
- LinkedIn banner: 1584×396
Privacy
Your images never leave your device. All resizing is done inside your browser using HTML5 Canvas — nothing is uploaded or transmitted.
Frequently Asked Questions
What is the best image size for different social media platforms? +
For Facebook posts: 1200x630 pixels. Instagram square: 1080x1080. Instagram portrait: 1080x1350. Twitter/X post: 1200x675. LinkedIn post: 1200x627. YouTube thumbnail: 1280x720. Pinterest pin: 1000x1500. This resizer lets you enter custom dimensions or use platform presets.
Will resizing an image reduce its quality? +
Making an image smaller (downscaling) generally preserves quality well. Making an image larger (upscaling or stretching) will reduce quality, as the tool must invent new pixels and the result can appear blurry or pixelated. Always start from the largest available original image.
How do I resize an image without distorting it? +
Use the lock aspect ratio option when resizing to maintain the original proportions. This prevents stretching or squishing. If you need a specific width AND height that differ from the original ratio, you will need to either crop the image or add padding (letterboxing) to fill the empty space.
What image format should I save resized images in? +
For photos and social media, save as JPG for the smallest file size. For graphics with transparency or text, save as PNG. For web use, WebP is the best modern format offering the smallest file size with good quality. Choose the format based on your use case and where the image will be displayed.
How do I resize an image for printing? +
Print quality is measured in DPI (dots per inch). For high-quality print, use 300 DPI. To find the pixel size needed for a print: multiply the print size in inches by 300. For example, a 4x6 inch photo needs 1200x1800 pixels at 300 DPI.