Responsive Image Crop Previewer
Upload an image once and instantly preview perfect crops for every major social media and ad placement. See 16:9, 1:1, 4:5, 9:16, banners, covers, stories, reels, and link previews in one dashboard.
Key Features
- One upload, multi-platform previews for YouTube thumbnails, Facebook feed and cover, Instagram posts and stories, TikTok, X (Twitter), LinkedIn, Snapchat, Pinterest, Reddit, WhatsApp, and more.
- Smart center-fit cropping: preserves aspect ratio, shows letterboxing when needed, and auto-crops to the largest possible size without stretching.
- Per-slot size validation: instant warnings when an image is too small for a specific placement (e.g., width or height below target pixels).
- Original image stats: view source width, height, and file size with live thumbnails for quick switching between uploads.
- Browser-only and private: nothing uploads to a server—everything happens locally for fast, secure previews.
- Drag-and-drop or multi-file picker support with cached crops for fast toggling between creatives.
Why Use It
Ensure your creative meets every platform’s recommended resolution and aspect ratio before posting. Avoid cut-off thumbnails, awkward crops, or blurry upscales by validating each size—1280×720 YouTube, 1080×1080 Instagram, 1080×1920 Stories, 1200×628 link previews, and more.
This webapp is created for those who are looking for:
social media image sizes, youtube thumbnail preview, instagram crop tool, facebook cover photo preview, tiktok video cover crop, twitter x image size checker, linkedin banner size, stories reels aspect ratio, responsive image cropper, online crop preview, ad creative sizes.
- social media image size checker
- youtube thumbnail crop preview
- instagram story size preview
- facebook cover photo preview tool
- twitter x image size tester
- tiktok video cover size
- linkedin banner size checker
- social media image cropper online
- free social media image resizer
- auto crop for social media posts
- check if my image fits facebook feed
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- multi platform image preview tool