Resize Image Online in Visual Watermark App

Visual Watermark Resizer allows you to resize your images quickly and effortlessly. You can process up to 10 photos per day completely free of charge. The app supports JPEG, PNG, WEBP, HEIC, GIF, BMP formats. Since our online image resizer is browser-based, it can work on any operating system as long as you have an internet connection.

How to Resize an Image Using Our App:

To upload your photos, click on the “Add Images” button in the top left corner or on “Select Images” in the center of the screen. You can also drag and drop your files with your cursor. If you click on either of the two buttons, you will see a small menu of four options, where you can upload your images from: “From my computer”, “From Google Drive”, “From Google Photos”, “From Dropbox”.

free image resizer

An image of any size can be uploaded into the app, but make sure that there is enough space in your memory storage to download resized copies.

If you clicked on “From my computer”, choose the necessary folder in the popped-up dialog box and pick photos that you want to resize. Press Ctrl + A (on Windows) or Cmd + A (on Mac) to select all the photos in the folder.

After you click on one of the following options - “From Google Drive”, “From Google Photos” or “From DropBox” a dialog window asking you to give access to your online storage will open. Click on “Allow Access”.

By clicking on “Add Images” you can upload more photos in addition to those that have already been uploaded. The “Clear Images” button allows you to remove all photos from the Image Resize tool.

Once all of your images are uploaded into the app, click on “Resize Images” in the upper right corner. This will open the output settings.

resize image

You can set the desired format of your resized copies by choosing “Original format”, “Convert to JPEG” or “Convert to JPEG and compress” in the “File format” drop-down menu. Please, keep in mind that lowering the quality of your images may result in the removal of some details and the addition of noise. But files of a smaller size will save you some memory space.

online image resizer

Next, you need to choose how your images will be resized.

image resize

If you select “Fit width”, you need to enter the desired value of max width in pixels into the bar below. The height will be adjusted automatically. Similarly, you can select “Fit height” and enter the value of max height in pixels. Then the image resizer will calculate and change the width.

Choose “Fit into rectangle” if you want to change both the width and the height of your images. You will need to enter the necessary dimensions in pixels into the two bars below.

The “Percentage” option allows you to set the level of the overall reduction. In other words, how much of the original image quality you want to keep. For example, if you type in 70%, it means that the width and height of the original image will be reduced by 30%.

Your output settings will be saved in the app’s memory. It is very convenient if you constantly need to resize your images in the same way. You won’t have to enter your values again and again.

Now, all you have to do is click on “Resize Images”.

how to resize an image

You can upload the resized copies to your computer, Google Drive or Dropbox.

With our online image resizer, you can process up to 10 photos per day. But, if you have large batches of images for resizing, it might be worth purchasing the paid version. It will allow you to resize up to 2000 photos in one go.

Why You Should Resize an Image

Since high-resolution cameras appeared on the market, we’ve had to deal with a large amount of data. For example, a good-quality JPEG photo can be up to 5 MB in size and have dimensions of 4200 x 2800 pixels. Such a highly detailed image would be perfect for printing or displaying on a big screen.

But you don’t usually need photos of the highest quality if you want to post them on the internet or social media platforms. In fact, files of smaller size have some significant advantages: they are faster to transfer as well as easier to open, view and store. Thus, a user-friendly app that will resize your images in a matter of minutes can be a great addition to your toolkit.

Here are the three most common cases when image resizing is necessary.

Posting on your website

Both the standard resolution of a computer screen and the image size are measured in pixels. At the same time, the most popular screen sizes, such as 1024 x 768, 1152 x 864, 1280 x 960, can be 2 or more times smaller than the dimensions of a high-quality photo. If a high-resolution photo is uploaded onto your website and its original size hadn’t been reduced, the browser will be forced to compress it, so that the visitors would have a better visual experience. This might significantly slow down its work.

Large files that haven’t been resized can take an extremely long time to fully load on a web page, and it is more difficult to download them onto your computer. All of these things can scare away a considerable number of your website visitors. In addition, browsers don’t usually do a good job at compressing images properly, which might lead to them looking blurry, unappealing, and unprofessional. You can avoid this by processing your images in a special image resizer. Smaller copies will look just as good as the originals.

It’s worth mentioning that web pages with large, high-resolution images aren’t indexed well by search engines, because of their slow loading. Last, but not least, don’t forget that some people may view your website on their smartphones. In the mobile version, your images can get misplaced due to their poorly selected size, and your customers will get a bad impression of your website’s layout.

Therefore, if you want your visual content to look good and professional without compromising your website’s loading speed, it is necessary to resize your images before publishing them.

Posting on social media

When sharing your visual content on social media, it is very important to take the recommended image sizes for posts, ads, headers, or profile pictures into consideration. If your original photo is smaller than the necessary dimensions, it will be stretched out and become a bit blurry. If it is larger, then it will be automatically compressed, which may result in a substantial quality reduction or it being awkwardly cropped out .

Here are the most important image sizes for popular social networks.


Image for external links: 500 × 261 px. Post: 1200 × 630 px. Page cover: 820 × 312 px. Profile image: 170 × 170 px.


Square post: 1080 × 1080 px. Portrait post: 1080 x 1350 px. Landscape post 1080 x 566 px. Instagram Stories: 1080 × 1920 px. Profile picture: at least 110 × 110 px.


Image for a tweet: 1024 × 512 px. Cover: 1500 × 500 px. Profile picture: 400 × 400 px.


Thumbnail: 1280 × 720 px. Channel cover: 2560 × 1440 px. Profile picture: 800 × 800 px.

If you don’t want to deal with all these different dimensions and prepare your visual content for every social media platform separately, you can simply resize an image to 1024 x 512 px. In most cases, it will be displayed correctly.

Sending as an email attachment

As you may know, email services have size limits for attached files. For example, Gmail’s size limit is 50 MB for an incoming letter. But if you want to send an email, you can attach a file or a group of files no more than 25 MB. The larger the size of your image, the more difficult it is to send it via email, especially if you have several of them.

Hence, resizing your images may be one of the solutions to this problem. If you need to send a batch of images, first, use our Image Resize tool to change their width and height without compromising their quality. Then zip all the resized copies up into a compressed folder (.zip) and attach it to your letter.

Visual Watermark Photo & Video Editing Tools