Image Resizer AI
“The Shopify image compressor allowed us to quickly reduce our collection banner file sizes while preserving sharp product clarity. Super smooth client-side experience!”
Instagram Post Size Converter
Convert, crop, and fit your photos for Instagram square, portrait, and story sizes 100% free locally in your browser.
Upload Images
Drag & drop your files here, or click to browse
100% Private: All compression occurs locally in your browser. No files are uploaded to any server.
Resize Photos for Instagram Feed Posts
Convert and resize photos to official Instagram feed post sizes: square (1080x1080), portrait (1080x1350), and landscape (1080x566). Explore all our free Instagram Tools to format stories using our Instagram Story Resizer or split panoramic multi-slide posts with the Instagram Carousel Splitter.
⭐ User Reviews & Feedback
See what creators and marketers think of our 100% browser-based tools.
Love our free tools? Review us on Trustpilot!
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Instagram Border Maker
“The Instagram Border Maker saved me so much time! Super clean output and 100% private in-browser processing.”
Instagram Metadata Remover
“Instant EXIF and GPS metadata stripping without losing image quality. Essential tool before posting photography online.”
Instagram Color Palette Extractor
“Loved the 1-click PNG swatch export and CSS variables generator! Made matching post color schemes effortless.”
Instagram Collage Maker
“The 2x2 grid collage builder with live preview and custom spacing is insanely fast and mobile-friendly.”
Instagram Image Size Calculator
“Auto-detecting image dimensions and showing instant crop/fit compatibility badges for all Instagram formats is genius!”
Frequently Asked Questions
Got questions? Find conversational answers below.
The recommended Instagram post dimensions are 1080 x 1080 pixels for square posts (1:1 aspect ratio), 1080 x 1350 pixels for portrait posts (4:5 aspect ratio), and 1080 x 566 pixels for landscape posts (1.91:1 aspect ratio).
You can convert your image size using ImageResizerAI by choosing either a Fit (letterbox with solid or blurred background) or Fill (smart crop) setting. This ensures your entire photo is displayed without losing key visual detail.
Yes, it is 100% free and processes all image resizing directly inside your web browser. No uploads to external servers are required, ensuring total privacy.