Upload your TikTok, Reel, or Short — get a word-synced, professionally captioned video back in under 2 minutes.
Caption style
Processing
Done in 1:47
Built for creators on
Why captions matter
Most short-form video gets watched with the sound off. If viewers can't read you in the first seconds, they skip you.
Viewer retention · first 14 seconds
How long people keep watching
Illustrative curves based on results Subsio creators report. Every audience is different.
longer watch time reported by creators
completed views — people stay to the end
reach — watch time is what algorithms reward
How it works
Drag & drop MP4 or MOV. Vertical works best.
Every word transcribed and timestamped — automatically.
Full-quality MP4, ready for any platform.
Features
10+ styles — from Hormozi-bold to minimal clean. Every word highlighted the moment it's spoken.
GPU-accelerated AI transcription. No waiting, no queue anxiety.
Testimonials
FAQ
Upload your short-form video and our AI automatically transcribes the audio, syncs each word to its exact timestamp, and renders animated captions in your chosen style — all in under 2 minutes.
We support MP4, MOV, and AVI files. Vertical videos (9:16) optimized for TikTok, Instagram Reels, and YouTube Shorts work best. The Lifetime plan supports files up to 350MB.
Yes! The Free plan gives you 5 credits per month — 1 credit = 1 video. No credit card required. Upgrade anytime to get more credits and unlock additional features.
Our AI transcription achieves 95%+ accuracy on clear audio. You can always review and edit captions before the final render.
Yes, cancel anytime from your Account page. You'll keep access until the end of the billing period.
Didn't find your answer? We're happy to help.
support@subsio.orgReady when you are
Join 150+ creators already using Subsio. Start free — no credit card needed.
5 free credits / month · No card required · Cancel anytime