Free caption generator for reels and shorts
Kool Captions is a free AI caption generator for Instagram Reels, YouTube Shorts and other vertical videos. Upload a video and it writes word-by-word captions timed to your voice; style them, fix any word, and export. Your first 10 minutes of transcription and your first 3 minutes of exports are free, with no watermark.
What you get free
- 10 minutes of transcription with the full editor: every word timed automatically, every word editable.
- 3 minutes of exports with no watermark (720p, in the Clean and Karaoke styles), made right in your browser.
- A free .srt subtitle file any time with the SRT generator, no sign-up.
- Sign in with Google. No card needed to start.
How to generate captions for free
- Open the app and upload your video (MP4 or MOV, straight from your phone).
- Pick the language: Hinglish (Hindi in Roman letters), English, Hindi, Tamil, Telugu, Marathi, Bengali, Punjabi, Gujarati, Kannada, Malayalam, Urdu, Odia, Assamese and more. Paste your script if you have one for word-perfect spelling.
- Choose a style and fix any word. Captions appear word by word, timed to your voice.
- Export the captioned video, or download an .srt.
When you need more
Packages unlock all 100+ styles, 1080p and 4K exports and longer videos, starting at ₹99 for 5 videos. Nothing renews automatically.
Related
Caption your next reel
10 minutes of transcription free · 3 minutes of exports free, no watermark · sign in with Google
Start for FreeQuestions
Is Kool Captions really free?
Yes. Your first 10 minutes of transcription and 3 minutes of exports are free, with no watermark on those exports. You only pay if you want every style, HD/4K or longer videos.
Does the free caption generator add a watermark?
No. Free exports have no watermark (720p, in the Clean and Karaoke styles).
Which languages does it support?
Hinglish (Hindi in Roman letters), English, Hindi, Tamil, Telugu, Marathi, Bengali, Punjabi, Gujarati, Kannada, Malayalam, Urdu, Odia, Assamese and more.
Do I need to install anything?
No. It runs in your browser on a phone or computer; sign in with Google and upload.
Can I get just a subtitle file?
Yes. Export an .srt from the editor, or use the free SRT generator without signing up.