If you're having big problems, your Internet connection might be briefly down or our website might be overloaded. Wait a moment and retry. Reloading the web page might help.
If the problems persist, try closing your web browser (in Windows, click on the X in the upper right) and then go back to RapidResizer.com. Your browser might have gotten into a weird state.
If that doesn't help, you can try a different browser, Chrome is recommended, or ensure you have the latest version of your preferred browser.
Restarting your computer sometimes helps.