You can caption videos in Vimeo by purchasing a service from Amara. Below are the necessary steps. Instructions: Step 1: Upload your video and edit the necessary settings. Step 2: Click on the Advanced tab to purchase Amara Services. Purchasing Amara Step 1: Choose your language. Step 2: Choose Captions or Translations. Step 3: Pick your service. Once you complete this step, you will be taken to billing. The transcription services will be completed in however many days listed under the chosen service.