"All is well" is a phrase that is often used to convey reassurance, contentment, or a feeling of safety and serenity. However, there are many other ways to express this sentiment. Some synonyms for "all is well" could include "everything is okay," "everything is fine," "all is good," "all is right," "everything's under control," "there's nothing to worry about," and "all is calm." These phrases can be used interchangeably in different contexts depending on the speaker's tone and intended meaning. So, whether you want to offer comfort or express your own sense of peace, there are plenty of ways to say that everything is alright.