Instagram Post Resizer
Resize images for Instagram posts in square or vertical formats.
About Instagram Posts
- •Square format: 1080×1080 pixels (1:1 aspect ratio) - best for feed posts
- •Vertical format: 1080×1350 pixels (4:5 aspect ratio) - best for portrait posts
- •Maximum file size: 30MB
- •Supported formats: JPG, PNG
- •Images are automatically resized while maintaining aspect ratio
- •All processing happens in your browser - your images never leave your device
How to Resize Images for Instagram Posts
Creating perfectly sized Instagram posts is essential for maintaining image quality and ensuring your content looks professional. Our free tool makes it easy to resize any image to Instagram's optimal dimensions.
- Upload Your Image: Drag and drop your image or click to browse. The tool accepts JPG, PNG, and WebP formats up to 30MB.
- Choose Post Format: Select between Square (1080×1080) or Vertical (1080×1350) format. Square works best for most feed posts, while vertical format takes up more screen space and is great for portrait-oriented content.
- Automatic Resizing: Our tool automatically resizes your image to the selected dimensions while maintaining the aspect ratio. The image is fitted within the frame without distortion.
- Preview & Download: Review the resized image and compare it with the original. When satisfied, download the optimized image ready for Instagram upload.
Common Use Cases: Use this tool for Instagram feed posts, carousel posts, product photos, promotional images, or any content you want to share on your Instagram profile. Perfect for businesses, influencers, photographers, and anyone who wants professional-looking Instagram content.
When to Use This Tool
Resize images for Instagram in these situations:
- Photos from Camera: High-resolution camera photos (often 4000×3000 or larger) need resizing to Instagram's 1080px width for optimal display and faster uploads.
- Images from Other Sources: Screenshots, downloaded images, or graphics from design tools may not match Instagram dimensions and need resizing.
- Creating Instagram Content: When preparing content for Instagram marketing campaigns, resize all images to ensure consistent, professional appearance.
- Batch Processing: Resize multiple images to the same format for consistent Instagram feed aesthetics.
- Optimizing for Mobile: Instagram is primarily viewed on mobile devices. Properly sized images load faster and look better on small screens.
Platform Requirements: Instagram recommends 1080×1080 pixels for square posts and 1080×1350 pixels for vertical posts. While Instagram accepts various sizes, using these exact dimensions ensures your images display at maximum quality without compression artifacts.
Tips & Best Practices for Instagram Posts
Choose the Right Format
Square (1:1): Best for most feed posts, displays well in the Instagram grid, and works great for product photos, food photography, and general content. Vertical (4:5): Ideal for portrait-oriented content, takes up more screen space in the feed, and is perfect for fashion, lifestyle, and portrait photography.
Image Quality
Always start with high-quality source images. While Instagram compresses uploads, starting with sharp, well-exposed images ensures better final quality. Use JPEG format for photos (smaller file size) and PNG for graphics with text or transparency.
File Size Optimization
After resizing, consider using our Image Compressor if the file is still large. Instagram accepts up to 30MB, but smaller files (under 2MB) upload faster and may retain better quality.
Safe Zones for Text
If adding text overlays, keep important text in the center 60% of the image. Use our Social Image Safe Margin Tool to visualize safe zones where text won't be cut off on different devices.
Common Mistakes to Avoid
- Don't upload images smaller than 1080px width - they'll appear pixelated
- Avoid extreme aspect ratios - stick to 1:1 or 4:5 for best results
- Don't resize already-compressed images multiple times - this degrades quality
- Avoid uploading images with text too close to edges - they may be cropped on some devices
Related Tools
For Instagram Stories, use our Instagram Story Cropper. For creating slideshows, try our Instagram Story Slideshow Maker. All processing happens in your browser for complete privacy.
Frequently Asked Questions
What are the recommended dimensions for Instagram posts?
Instagram posts work best in square format (1080×1080 pixels) or vertical format (1080×1350 pixels). Our tool supports both formats.
What is the difference between square and vertical formats?
Square format (1:1) is best for feed posts and displays well in the Instagram grid. Vertical format (4:5) is ideal for portrait-oriented content and takes up more screen space.
What is the maximum file size for Instagram posts?
Instagram accepts images up to 30MB. Our tool resizes images while maintaining quality.
Will the aspect ratio be maintained?
Yes, our tool maintains the original aspect ratio while resizing to Instagram recommended dimensions. Images are fitted within the selected format frame.
What image formats are supported?
Instagram supports JPG and PNG formats. Our tool works with all common image formats and converts them as needed.