ToolCrispInstagram Post Resizer
Create Instagram posts at the perfect size — choose from square (1080×1080), portrait (1080×1350), tall (1080×1440), or landscape (1080×566). Upload any image, pick the variant that suits your content, and download ready-to-post images. All processing runs in your browser.
Drop files here or click to browse
Supports .PNG, .JPG, .JPEG, .WEBP, .BMP, .TIFF (up to 20 files)
Instagram Post Size Guide
Instagram supports multiple post formats:
| Format | Size | Ratio | Best For |
|---|---|---|---|
| Square | 1080×1080 | 1:1 | Classic, fits all feeds |
| Portrait | 1080×1350 | 4:5 | More feed space, higher engagement |
| Tall Portrait | 1080×1440 | 3:4 | Extended vertical |
| Landscape | 1080×566 | 1.91:1 | Panoramic shots |
Tips:
- Portrait (4:5) takes up the most screen space in the feed
- All formats use 1080px width — Instagram scales down larger images
- Carousel posts can mix formats but look best when consistent
Your files are processed entirely in your browser. Nothing is uploaded to any server.