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Castmint
Type one line. Get a finished short.
Castmint turns one typed line into a finished vertical short: AI script, voiceover, synced captions and visuals โ ready to post on TikTok, YouTube Shorts and Instagram Reels.
The problem: short-form video is the highest-leverage format on the internet, but every single short costs an evening โ scripting, recording a voiceover, syncing captions, hunting for visuals, cutting it vertical. That's why most channels go quiet.
What Castmint does: type a topic โ "5 underrated productivity apps", "why your houseplants keep dying" โ and Castmint assembles the whole thing:
- Script โ an AI-written hook and narration matched to short-form pacing
- Voiceover โ natural AI voices (no camera, no mic, no face needed)
- Captions โ word-timed, styled, burned in
- Visuals โ matched to the script, cut into a vertical 9:16 video
- Editor โ timeline editing of text, captions, images and audio when you want control
- Publishing โ push finished videos to YouTube and TikTok directly from the app
Who it's for: faceless channels, creators who hate editing, and small brands that want to look active on TikTok, Reels and Shorts without a video team.
One input, whole pipeline: most tools automate a single step โ voiceover, or captions, or stock clips. Castmint goes from a typed idea to a finished, publishable short in one pass, and still gives you a timeline editor for control.
Your first three videos are free, no card required.
- Freemium
- Official Pricing
- Web
