Fast Online Image Resizer & Dimension Converter
Need your photos in specific pixel dimensions? Whether you are preparing images for Instagram posts (1080x1080), YouTube thumbnails (1280x720), LinkedIn banners (1200x627), or custom dimensions, this tool resizes them efficiently in batch directly inside your browser. No file upload, no account, no size limit.
Social Media Image Size Reference
Each platform enforces specific pixel dimensions for optimal display. Using the wrong size causes cropping, letterboxing, or compression artifacts. Here are the standard dimensions this tool supports via built-in presets:
- Instagram Post (square): 1080 x 1080 px
- Instagram Story / Reel: 1080 x 1920 px
- YouTube Thumbnail: 1280 x 720 px
- Facebook Cover Photo: 820 x 312 px
- LinkedIn Post Image: 1200 x 627 px
- Twitter / X Post: 1200 x 675 px
- Pinterest Pin: 1000 x 1500 px
Fit Inside vs Crop to Fill — When to Use Each
Fit Inside scales the image down so the entire image fits within the target dimensions, preserving all content but potentially leaving empty space on the sides or top. Use this for product photos, documents, and any image where cropping content is unacceptable.
Crop to Fill (Cover) scales the image up or down so it completely fills the target dimensions, then crops the excess from the center. Use this for profile pictures, thumbnails, and social media posts where you need the frame exactly filled and slight edge cropping is acceptable.
Batch Resizing Without Uploads
All resizing happens via browser Canvas API. Drag and drop multiple images, set your target dimensions once, and download all resized files as a ZIP archive. Because nothing leaves your browser, there are no upload limits, no wait times for server processing, and no privacy concerns with sensitive images.