Is there a way to straighten your teeth without braces?

Yes!: Braces are attached to your teeth, but some times teeth can be straightened with appliances that are removable.

Yes: Depending on how much you teeth need to be aligned you can use invisalign which are a clear type of appliance that is worn over the teeth much like a whitening tray or a nightguard. Sometimes for very minor movements, an active retainer can be used to align the teeth.

Certainly possible: Clear aligner treatment is one option although there are also clear braces and invisible braces (on the back of teeth) if the esthetic appearance of braces are a concern. It's best to see an orthodontic specialist to determine if any of these options would serve your situation.