Instagram Post Resizer1080 × 1080 px
Resize any image to exactly 1080×1080px for Instagram. Free, instant, and nothing leaves your browser.
- Dimensions
- 1080 × 1080 px
- Aspect ratio
- 1:1
- Max file size
- No fixed limit
- Best format
- JPG
How to resize an image for Instagram
Add your image
Click Choose image or drop a file into the box above. JPG, PNG and WebP all work.
Check the crop
The preset is already set to 1080×1080px. Drag inside the preview if you want to reposition the crop.
Download
Pick a format and click Download. You get a Instagram Post at exactly 1080×1080px.
Instagram Post size at a glance
A square Instagram post is still the safest choice for the main feed because it displays consistently across mobile and desktop. The 1080px width is the maximum Instagram renders, so going larger just adds file size without visual benefit.
Why 1080×1080 matters
Using 1080×1080 gives you the sharpest upload without fighting unpredictable crops. It also keeps design systems simple when producing repeatable branded content at scale.
What happens when the size is wrong
Low-resolution images look soft after Instagram's compression pass. Off-ratio uploads get auto-cropped, which can cut off text or reframe the subject awkwardly in the profile grid.
Best practices
- Keep the focal subject centered enough to survive both feed display and profile grid thumbnails.
- Use bold, simple text rather than dense copy overlays — small text becomes unreadable after compression.
- Export as JPG at 85-90% quality for photos; use PNG only for graphics with flat colors and sharp edges.
Frequently asked questions
What size should a Instagram Post be?
The recommended size for a Instagram Post is 1080×1080 pixels (1:1 aspect ratio).
How do I resize an image for Instagram Post?
Upload your image to the resizer above. It will automatically crop and resize to 1080×1080px. Adjust the crop position if needed, then download the result. Your image never leaves your device.
Which format should I use for a Instagram Post?
Instagram accepts JPG, PNG. We recommend JPG — Square 1080×1080 remains the safest general-purpose feed format. Instagram also supports 4:5 portrait (1080×1350) and 1.91:1 landscape.
Is my image uploaded anywhere?
No. TinyResize runs entirely in your browser. The file is read from your device, resized on your device, and downloaded from your device. Nothing is sent to a server.