Turn Any Nightmare Into a Viral Horror Video
Create spine-chilling horror videos in minutes with AI. Just enter a scary prompt (e.g., “ghost in abandoned school”, “FNAF animatronic jumpscare lore”), and Medeo automatically writes the script, generates narration, builds eerie visuals, adds atmosphere sound effects, subtitles & pacing — all in one click.

What is an AI Horror Video Generator?
An AI Horror Video Generator is a tool that transforms text, prompts, or story ideas into ready-to-publish horror videos. It uses AI narration, cinematic editing, image/video synthesis, sound design, and pacing control to create terrifying, viral-ready content without filming, drawing, or animation skills.
From Idea to Nightmare On-Screen — In Seconds
Watch text turn into terrifying cinematic horror scenes automatically
Before
Just an idea or scary text prompt

After
Fully generated horror short film with creepy music, narration & jump-scare visuals

Before
Just an idea or scary text prompt

After
Fully generated horror short film with creepy music, narration & jump-scare visuals

Why Choose Medeo AI Horror Generator?
The fastest way to create horror content for TikTok, YouTube Shorts, and creepypasta channels.
Script-to-Video
Type a scary idea → get a cinematic horror video instantly. No filming, no editing required.
AI Voice Narration
Choose whispering ghost voice, deep demonic narration, robotic FNAF-style voice, or classic storyteller tone.
Viral-Optimized Storytelling
Auto-generated hook → suspense build-up → twist ending. Designed to trigger maximum watch-time & shares.
Horror Aesthetic
AI generates eerie night-vision shots, shadow silhouettes, ghost apparitions, animatronics, VHS-style filters, etc.
Perfect for FNAF
Generate #five night satfreddys theories, animatronic lore, missing kid arc stories instantly.
Multi-Format Output
Export vertical TikTok/Reels 9:16, YouTube 16:9, or square videos — HD quality.
Perfect For These Use Cases
From horror storytellers to gaming fandom communities — endless possibilities
Creepypasta Story Videos
Convert Reddit-style horror text into narrated scary videos
FNAF Lore & Game Theory
Auto-generate fan theories, survival night summaries, animatronic background stories
Halloween Event Videos
Create spooky greeting videos for events & parties
Haunted Location Narration
Turn abandoned hospital / ghost town stories into cinematic visuals
TikTok Horror Shorts
15–45 sec cliffhanger content to boost followers
YouTube Horror Channels
Generate weekly scary content without writing or editing
How to Create a Horror Video with Medeo
Step 1
Generate & Share
Export instantly — upload to TikTok, YouTube Shorts, Instagram Reels, or Reddit scary threads.
Step 2
Write or Paste Your Story
Enter a prompt like “girl receives calls from herself in the future — horror” or paste a full story.
Step 3
Add Narration & Effects
Select AI voice, sound effects (heartbeat, whisper, footsteps), lighting, and text overlays.
Step 4
Choose Style & Atmosphere
Pick: VHS / found-footage / paranormal cam / FNAF animatronic / creepypasta anime / cinematic thriller.
FAQs
Can I create FNAF-style horror?
Yes — choose “Animatronic / VHS Jumpscare Style” to produce FNAF-inspired videos instantly.
Can I upload my own images or faces?
Yes — upload images to turn them into horror characters or haunted-style portraits.
Do I need editing skills?
Not at all. Medeo handles the animation, syncing, captions, and exporting—no editing software required.