With Watermarkly, you can set a custom aspect ratio and pixel size for your images in under five minutes. You can resize your photos for Instagram in just a few clicks and get the desired results. The tool supports all the common image formats – JPG, PNG, BMP, WEBP, GIF, and HEIC. Your original files stay untouched — all edits are applied to copies.
Resize Photo OnlineWatermarkly is a browser-based app, so all you need is a stable Internet connection. It’ll work on any operating system and any device – smartphone, tablet, laptop, or desktop computer.
How to resize photos for Instagram:



What Instagram templates does Watermarkly offer?
Our app has four ready-made templates for Instagram:
If you need to create an ad or a video cover, you can also click inside the “Desired size” bar and enter the exact pixel dimensions, then adjust the crop area.
Resize Photo OnlineWatermarkly is extremely convenient and intuitive. It has a clean, easy-to-navigate interface. You won’t have to download anything to your device or install any plugins. With our app, resizing photos for Instagram won’t be complicated or time-consuming. You’ll just need to upload your images to the app and get started.
Advantages of Watermarkly:
It’s safe and secure
All of our tools process your files right in your browser. It means that they never leave your computer and get uploaded to our servers. We never upload, access, or store your files. Everything stays on your device. We don’t collect personal data, and all connections are secure. If you want to use the free version, we won’t even ask you for your email address. With Watermarkly, you never have to worry about security or privacy.
It works fast
You can resize a photo for Instagram in just a few minutes. It’ll take a couple of seconds to import images. Choosing a ready-made template and adjusting the crop area will also be simple and quick. Processing and downloading take less than a minute.
It’s ad-free
Even though our app is online, you won’t be distracted by annoying ads or disturbed by sudden pop-ups. No sign-up required.
The interface is very intuitive
You don’t need to have any professional editing skills. Our app is so simple that you will master it in no time.
There’s a free version
You can optimize your photos for free if you only need to process a small batch. The free version of our app allows you to process up to 10 pictures at once.
Resize Photo OnlineWatermarkly is an excellent free online tool for quickly editing photos before uploading them to your Instagram account.
Here are a few features you might find useful:
Each tool works independently and is easy to use. Plus, almost all of our apps support batch processing.
Resize Photo OnlineInstagram supports three post formats — square, portrait, and landscape. It supports such image formats as JPG / JPEG, PNG, and BMP. In addition, it allows you to upload non-animated GIFs. However, JPEG / JPG is still the preferred format, so it’s a good idea to convert your photos to it to maintain quality and save time.
Minimum resolution for a Post Photo is 150 x 150 pixels.
Maximum resolution for a Post Photo is 1920 x 1080 pixels.
Maximum file size is 8 MB.
Resize Photo OnlineHow can I upload a large-sized, high-resolution photo to Instagram without losing quality?
Unfortunately, it’s impossible. First, you will need to crop your image in the app itself. Then Instagram will automatically compress your photo, so it will occupy less space on their servers. This might make your image look blurry or pixelated, losing many of its fine details. If you want to avoid that, you should adjust its size. You can both crop and downsize your large images in Watermarkly. Our app includes ready-made templates for all kinds of Instagram posts and stories.
Where can I find an app to resize images for Instagram?
You can use our browser-based app, Watermarkly. It will allow you not only to crop your images, but also set new pixel dimensions which will be perfect for Instagram. Since it’s web-based, there’s no need to download or install anything. You can open the app on our website and get to resizing.
Can I edit an image on Instagram after it has been posted?
Instagram allows you to edit the caption and tag someone after the post has been uploaded. However, you cannot make any changes to the images themselves. If you don’t like how your photo looks after it has been posted, you’ll have to take it down, tweak it a bit, and re-upload. It’s a common practice to crop and downsize your images for Instagram before posting them.
Is it possible to upload resized, but uncropped images to Instagram?
Technically, you can resize your photo without cropping it. For example, you can use our tool to reduce the size of your image by 25% or change its pixel dimensions, then upload the resized image to Instagram. However, this platform has its specific aspect ratios – 1:1 for a standard post; 4:5 for a portrait post and 1.91:1 for a landscape post. So you’ll need to crop your image anyway. If you downsize your image, then crop it in Instagram’s editor, your image will be of a smaller size than you intended and might look blurry or low-quality. For this reason, it’s better to use our online tool to properly optimize your images for this social network.
Resize Photo Online