Whether you need to resize for social media, web optimization, or email attachments, ImageStream handles it in your browser. Set exact pixel dimensions or choose from preset sizes for popular platforms.
How to resize images
- 1Upload your image or drag and drop it
- 2Enter width and height in pixels or choose a social media preset
- 3Click Resize and download your resized image
Image Resizing Best Practices
Instagram — Recommended Resolutions
Avoid awkward cropping by using standard ratios. Square (1:1) should be 1080×1080px, Portrait (4:5) is 1080×1350px, and Landscape (1.91:1) is 1080×566px. For Reels and Stories, always use 1080×1920px (9:16). Resizing to these specs before posting ensures your content looks exactly as intended.
TikTok — Ad and Video Cover Specs
TikTok is a 9:16 platform. All covers and ad creatives should be 1080×1920px. Using the correct resolution prevents ad rejection and ensures your creative looks professional on mobile devices.
YouTube — Standard Dimensions
Stick to the platform standards: 1280×720px for thumbnails, 2560×1440px for banners, and 800×800px for channel icons. Always center your logo and text on banners to ensure they aren't cut off on different devices.
Facebook — Ad and Page Sizing
Use 1200×628px for link ads, 1080×1080px for square ads, and 1080×1920px for Story ads. Matching the platform's native aspect ratio is the best way to prevent automatic, messy cropping.
Shopify / E-commerce — Consistency
Consistency builds trust. Maintain a uniform aspect ratio (1:1 is standard) across all product images to keep your store looking polished. Aim for at least 800×800px; Amazon specifically requires at least 1000px on the longest side for zoom functionality.
WordPress — Responsive Strategy
Prevent mobile bloat by capping body images at 1200px width and sharing images (OG Images) at 1200×630px. This reduces server load and boosts PageSpeed scores.
