What's the best way to show 'too many options with checkboxes' to user?

1. How many options should you limit user choices to?
2. How do I check multiple checkboxes?
3. What is the alternative of checkbox?
4. Where would you use radio buttons instead of checkboxes?

How many options should you limit user choices to?

Even number of options may be the best as not to cause middle display biases. It drives people to choose the middle option. If you want people to think very carefully, a set of four options is ideal. It's not too much nor too many and will likely trigger more thinking about trade-offs.

How do I check multiple checkboxes?

Simply check or uncheck multiple checkboxes at a time by clicking and dragging. Allows you to check multiple checkboxes quickly by CLICKING & DRAGGING or even quicker with an ALT+CLICK & DRAG area select.

What is the alternative of checkbox?

The best alternatives to Checkbox are Codrops Blueprints , CSS Wand and Keyframes.

Where would you use radio buttons instead of checkboxes?

For example, you should use radio buttons when you want the user to be able to select only one option from the available choices. In contrast, if you're giving multiple selection choices to your users, you should use the checkboxes field.