Image Resizer
Resize images to any dimension
100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.
IG 1080×1080 selected — upload an image to apply it.
Drag & drop files here
or browse to upload
Supports PNG, JPG, WebP up to 20MB
Processed in your browser - your file never leaves this device.
About this tool
Instagram Post is 1080 x 1080 pixels - a square 1:1 frame. Drop any image in and it is resized to exactly that, with a live preview so you can see the crop before you commit to it. The classic square post. Instagram now allows portrait too, but square is still what most grids are built around. Instagram grids are still built on squares, so a square post is the only shape that previews exactly as it will appear on your profile. The image never leaves your computer - the resize runs in the browser, which also means there is no queue and no file-size cap. Feeding in a different aspect ratio means something gets cut. The preview shows exactly what, so you can reposition instead of discovering it after posting.
How to use this tool
- Drop your image inAny JPG, PNG or WebP. Nothing is uploaded - your browser reads the file directly.
- It resizes to 1080 x 1080 pixelsThe Instagram Post preset is already selected on this page, so there is nothing to type in.
- Check the preview and downloadThe preview shows the exact crop. Reposition if you need to, then save as JPG, PNG or WebP.
Key features
- Live preview, so you see the crop before downloading instead of after.
- Export as JPG, PNG or WebP, whichever the platform prefers.
- Runs in your browser - no upload, no account, no watermark.
- Resizes to exactly 1080 x 1080 pixels, the current Instagram Post size.
- No limit on how many images you resize.
Common uses
- Posting a square image to the Instagram feed.
- Fixing an image a platform rejected for being the wrong dimensions.
- Preparing a batch at 1080 x 1080 pixels before a scheduled post.
- Getting a correctly sized image without opening a full editor for a 30-second job.
- Resizing on a phone without installing an editing app.
Tips for better results
- Start from the largest original you have. Scaling up to 1080 x 1080 pixels from something smaller looks soft, and nothing undoes that.
- PNG keeps text and sharp edges crisp at this size; JPG is smaller for photographs.
- Check the result on the platform itself - feed thumbnails are often cropped again from the size you upload.
- Instagram grids are still built on squares, so a square post is the only shape that previews exactly as it will appear on your profile.
Mistakes to avoid
- Assuming another platform at the same pixel size behaves identically. Instagram grids are still built on squares, so a square post is the only shape that previews exactly as it will appear on your profile.
- Putting important detail near the edges of a 1:1 frame. Platforms crop again for thumbnails and previews.
- Scaling a small image up to hit the pixel count. The file gets bigger; the detail does not come back.
- Letting the image stretch instead of keeping the ratio. A squashed face is more obvious than a tight crop.
Frequently asked questions
1080 x 1080 pixels - a square 1:1 frame, 1.2 megapixels.
Drop it onto this page. The Instagram Post preset is already selected, so it resizes straight to 1080 x 1080 pixels and shows the crop before you download.
Instagram grids are still built on squares, so a square post is the only shape that previews exactly as it will appear on your profile.
Yes - free, no signup, no watermark and no limit on how many images you resize. It runs in your browser, so it costs nothing to provide.
No. The resize uses your own device image engine, so files never leave your computer.
No. It keeps the 1:1 ratio and shows what will be cropped, so you can reposition before downloading rather than finding a bad crop afterwards.
JPG for photographs, PNG when there is text or transparency, WebP when the platform accepts it and you want the smallest file.
People also search for
- instagram post size free
- instagram post size in pixels
- instagram post dimensions
- instagram post template
- image resizer online free
- resize image to 1080x1080
- instagram post size