Turn any video into a ready-to-post caption.
The AI caption generator that listens to what you say in your video and writes the Instagram, TikTok or YouTube caption for you, in your voice and in any language. One caption or a multi-part series.
Drop your video here
MP4, MOV, or straight from your phone
I don't plan my week on Monday morning. I do it Sunday night, and it starts with a brain dump. Everything in my head goes onto one page. Work, personal, the dentist appointment I keep forgetting. No sorting, no judging. Ten minutes. It's the reason I don't wake up at 3am thinking about emails.
Three steps. Zero busywork.
Upload
Drop in an MP4 or MOV straight from your phone. Big files are fine.
It's analyzed
Your video is transcribed in any language and analyzed for what it's actually about: the point, the details, the takeaway.
Copy your caption
A polished caption that sounds like you. Copy it, paste it, post it.
Captions in your voice, without the hard work.
Every caption comes from what you actually said, written the way people actually talk. Want it shorter, longer, more casual or more professional? One tap.
- Sounds like you
- No cheesy hooks
- Natural, relatable wording
Simple pricing
Start free. Move up when you post more. Every plan writes in any language and cancels in one click.
Free
Try it on one video.
- 1 free video
- Up to 15 minutes, 500 MB
- 1 Brand Voice from your Instagram
- One caption or a series
- No card needed
Creator
For people who post every week.
- 30 videos a month
- Up to 30 minutes, 2 GB each
- 3 Brand Voices
- Full history
- Rewrites included
Creator Plus
For daily posters and small teams.
- 100 videos a month
- Up to 45 minutes, 4 GB each
- 10 Brand Voices
- Full history
- Rewrites included
Ultimate
For agencies and heavy publishers.
- 200 videos a month
- Up to 60 minutes, 8 GB each
- 25 Brand Voices
- Full history
- Priority processing
Good to know
What does CaptionKing do?
You upload a video. CaptionKing listens to what is said in it and writes a caption for Instagram, TikTok, YouTube or Facebook that sounds like you. It is not your transcript pasted back, and there are no cheesy hooks.
Does it work for Reels, TikTok and YouTube Shorts?
Yes. Captions are written for social posts, so you copy them and paste wherever you publish: Instagram Reels and posts, TikTok, YouTube Shorts, Facebook or LinkedIn.
Which languages are supported?
The spoken language is detected automatically. Your caption comes back in the video's language, or in any of 30 languages you pick, including right-to-left languages like Hebrew and Arabic.
What is a multi-part series?
If one long video becomes two, three or more posts, CaptionKing writes one caption per part and splits where the ideas change, so each caption lines up with how you cut the video.
What is Brand Voice?
Describe how you sound, or start from a public Instagram profile, and every caption after that is written in that voice, including your kind of emojis and hashtags.
What happens to my video?
The video is deleted right after the audio is extracted. We keep the transcript, your captions and one thumbnail so you can copy them again later, and you can delete any project whenever you like.
How do I get help?
Email [email protected] and a person will answer, usually the same day. Billing questions, a caption that came out wrong, anything.
How much does it cost?
Your first video is free, no card needed. Paid plans start at $14.99 a month for 30 videos and go up to 200 videos a month. Cancel anytime from your billing page.
Stop writing captions from scratch.
Upload, wait about a minute, copy. That's the whole workflow.
Try it free