Adding auto-captions to your videos can make them more accessible, engaging, and shareable. Here’s a comparison of the leading platforms - and a bonus tool- for real-time or post-production captioning:

1. Capsai Auto Subtitle Generator
   Capsai’s AI-powered subtitle generator handles Hindi, English, and Hinglish with ease. Upload your video or paste the URL, and get a ready-to-use SRT file or burned-in captions within seconds. Perfect for creators who need fast, accurate multilingual captions across platforms.
   Link: https://capsai.co/auto-subtitle-generator
   
   

1. Instagram’s Captions Sticker
   Instagram Reels and Stories let you add live captions via the Captions sticker. After recording or uploading your clip, tap Stickers → Captions. Instagram transcribes spoken words in real time, and you can edit text, style, and position before sharing.
   Link: https://help.instagram.com/504515376519392
   
   

1. TikTok Auto Captions
   TikTok offers automatic captions for uploaded videos. On the post-production screen, toggle on Auto Captions and choose the language. TikTok’s on-device AI supports over a dozen languages and lets viewers toggle captions on or off when watching.
   Link: https://support.tiktok.com/en/using-tiktok/creating-videos/captions
   
   

1. YouTube Studio Auto-Generated Captions
   YouTube automatically generates captions for most uploads. In YouTube Studio, go to Subtitles in the left menu, select your video, and view the auto-generated track. You can download, edit, and translate these captions into 100+ languages directly within the dashboard.
   Link: https://support.google.com/youtube/answer/6373554
   
   

Which is best? For quick social-first clips, Instagram and TikTok’s built-in options are extremely convenient, though editing capabilities are basic. YouTube Studio offers the most robust editing and translation features. For highest accuracy, multilingual support, and downloadable files, Capsai Auto Subtitle Generator leads the pack.