Free AI 3D Cartoon Shorts Generator
Type a little story — a dinosaur who cannot stop dancing, a cat who works the night shift — and get back a narrated vertical cartoon with captions. The AI writes the scenes, voices the narrator and renders each shot in a soft 3D animated look. No animation software, no keyframes, no drawing.
Script • Voiceover • Captions • AI-generated scenes • Ready in about 6 minutes · 10 free credits in supported countries — enough for your first 15-second AI film, no card
$19.90 $15.92 for the first month, then $19.90/month
150 credits a month = 4 watermark-free 60-second films on Seedance 1.5. Cancel anytime.
Your idea stays attached through signup and becomes your free 15-second film (Seedance 1.5), watermarked, no card.
Made in Kineo: the closest public film we have (not a cartoon)
A Kineo-owned film, not a mockup — the badge is the engine that rendered it. Customer videos stay private.
Honest note: Kineo has no public cartoon film yet — customers’ cartoons stay private. This is a calm, colorful Seedance 1.5 film from the house, shown so you can judge the engine’s light and motion. The 3D cartoon look comes from the style words in your prompt.
Coastlines that glow electric blue
The exact prompt that made this film
“At night, some quiet coastlines begin to glow electric blue. The light comes from tiny plankton that store chemical energy during the day. When a wave moves them, they flash for only a fraction of a second. Millions of flashes together make every footprint, paddle, and ripple shine. The glow is not magic, and it is not permanent. Temperature, tides, and nutrients must align. That is why a beach can look ordinary one evening and become a field of stars the next.”Open this idea in the Studio →Make one like this →
The idea opens in the Studio, where you can change it before you press Generate. Every new account gets one free 15-second Seedance 1.5 film, watermarked, no card. Seedance 1.5: price per video →
How it works
Type any 3d cartoon stories topic — or use one of the ready-made viral ideas below.
The script, voiceover, on-screen captions and every scene are generated automatically.
Get a vertical 9:16 MP4 in a few minutes, ready for YouTube Shorts, TikTok or Reels.
What makes an animated Short work in under a minute
One character, one wish, one twist. Children and adults scroll past cartoons that spend ten seconds on setup, so the best animated Shorts open on the character already doing something funny. Give your hero a name, a color and a single goal, then let something get in the way. The narration carries the story, so every scene can stay simple and bright.
Keep the cast small. Generated scenes are rendered shot by shot, and two characters are far easier to keep recognizable than five. A short, vivid description repeated the same way in every scene — "a small green dinosaur with orange spots and a red scarf" — is what holds the look together from the first shot to the last.
How to write the prompt for a 3D cartoon look
Ask for the style in plain words: "3D animated, soft studio lighting, rounded shapes, big expressive eyes, bright pastel colors". Avoid naming a studio or a famous character; describe the look instead. Then write the plot as three or four beats: the hero, the problem, the funny attempt, the happy ending.
If you already have the full narration, paste it and choose to keep your script as written. If you only have the idea, let the AI structure it: it writes a hook, splits the story into scenes and directs each shot. Either way you review the setup before anything is generated.
Where cartoon Shorts get posted, and how often
Bedtime-story channels, toy and education accounts, and parents making a story starring their kid’s favorite animal all use the same vertical format: 30 to 60 seconds, captions on, a calm narrator. A channel that posts one little story a day builds a recognizable series within weeks — keep the same hero and the same opening line so returning viewers know it instantly.
If the audience is children, mark the video as made for kids where the platform asks, and say it is AI-generated when the platform requires disclosure. Those settings live in YouTube and TikTok, not in Kineo.
3D Cartoon Stories Shorts: questions
Can I make a cartoon Short for free?
Yes, once: a new account in supported countries gets one 15-second film on Seedance 1.5 with a watermark and no card. That is enough to see whether your character and style come out the way you pictured before paying anything.
Will my character look exactly the same in every scene?
Not guaranteed. Each scene is generated separately, so small changes in clothing or proportions can happen. A precise, repeated description and a small cast keep drift low; very long stories with many characters drift more.
How many cartoon films does a paid plan make?
Creator is $15.92 for the first month (20% off), then $19.90/month and holds 4 watermark-free 60-second Seedance 1.5 films a month. Starter is $9.90/month for lighter use, and Studio is $54.90/month for daily series.
How long does one animated Short take?
About 6 minutes from pressing Generate to a downloadable 9:16 MP4 with narration and captions.
Viral 3D Cartoon Stories ideas to start with
Start free — 10 free credits for 3D Cartoon Stories Shorts
Start with 10 free credits in supported countries. The cost depends on your engine and duration. Trial videos are watermarked; upgrade for clean downloads. Starter is $9.90/month when you want clean exports.
Start free — 10 credits →