Resize images
Visit szh.app/resize open_in_new.
Either click and drag an image into the area, or select the + button, in the middle, to upload an image file.
Follow the prompts to resize your image and save as your preferred file type, then select Save Image.
Your resized image will download, which you may use as you please.
Why you might not want to make an image larger
There are a finite number of pixels in each image; programs cannot likely add more without compromising the quality, making it look fuzzy.
If you need a larger version, return to the source to try finding the maximum size original image file.