Book trailers Films Free trailer

Turn your story into a cartoon with AI

To turn your story into a cartoon with AI, use a tool that makes the whole film from your text rather than one clip at a time, so the characters stay the same from scene to scene. In Nima's Long-form Video you paste 150 to 10,000 words, pick one of five looks, approve every character and place, choose a voice for each speaker, and get your story back as an animated film with your words read aloud. The first trailer, 15 to 20 seconds of your story, is free.

A girl and a giant fox, in comic book ink, drawn with Nima for this guide. The story is invented.
A girl and a giant fox, in comic book ink, drawn with Nima for this guide. The story is invented.
Make my free trailer

Your first trailer is free.

Last updated 4 November 2026

What you need

Pick a look

Detailed claymation: Sherlock Holmes, The Red-Headed League
Detailed claymation
Sherlock Holmes, The Red-Headed League
Felted wool: Little Women
Felted wool
Little Women
Comic book ink: The Red-Headed League, in ink
Comic book ink
The Red-Headed League, in ink
Acid pencil: Anna Karenina, the look sheet
Acid pencil
Anna Karenina, the look sheet
Cut paper: The Three Musketeers
Cut paper
The Three Musketeers
Detailed claymation, darker: Frankenstein
Detailed claymation, darker
Frankenstein

Step by step

  1. Paste your pages. Open Long-form Video and paste the scene, chapter or short story you want filmed, between 150 and 10,000 words. Nima reads it, maps the scenes, the cast and the places, and asks before it cuts anything.
  2. Pick a look. Detailed claymation, felted wool, comic book ink, acid pencil, which is coloured pencil, or paper love, which is cut paper. Nima can draw your lead character and your main location in all five so you compare them side by side.
  3. Approve the cast and the places. Every character is drawn once, from the descriptions in your text, and every location is built once as a set. Leave a note on any picture and Nima redraws it.
  4. Pick the voices. Each speaking character gets five voice auditions, each one reading a line from your book. Choose the one that sounds like the person you wrote.
  5. Watch your free trailer. Nima cuts a trailer of 15 to 20 seconds from your text: several of its places and people, two or more of your lines spoken word for word, music under it, your title at the end. You see it first as a storyboard with the voices, give one round of notes, and it is fully animated, free. Nima emails you when it is ready.
  6. Make the film, if you want more. Pick a plan, metered in minutes of finished film, and Nima films the text scene by scene. You review a full draft with the voices, leave notes in each round your plan includes, then approve the render. The finished film is yours to download and share with a link.

What kind of story works

StoryWordsFilm
A bedtime story300 to 6002 to 4 minutes
A short story1,500 to 3,00010 to 20 minutes
Your life story750 to 1,5005 to 10 minutes
A game session recap550 to 1,0504 to 7 minutes
A novela few chapters an uploadan hour an upload

More on each: a children's story, your life story, a D&D campaign, a book.

Cartoon or comic book?

A comic is pictures you read; a cartoon moves and talks. If you want the comic look, the comic book ink look draws your story in inked lines and flat colour, and then it moves and speaks.

Doing it clip by clip

Clip tools make a few seconds at a time and hold a character only when you give every clip the same reference pictures. Which tools keep a character between clips.

What it costs

Films are made on a monthly plan metered in minutes of finished film, with one, two or five rounds of notes on each film. The plans are on the pricing page. Film length follows the text at about 150 words a minute with the narrator on.

You need the right to adapt the text. Your own book qualifies, and so does anything in the public domain. If a publisher holds your film or audio-visual rights, ask them before you post a trailer.

Formats and extras

Films come in widescreen and in vertical, so the same trailer fits YouTube and your book page as well as TikTok, Reels and Shorts. Music can be added. A title card for your book, your own artwork for the characters and your own voice for the narration are available on request. Write to hello@nima.mov and tell us what you need.

Common questions

Can AI turn my story into a cartoon?

Yes. Paste the story into Nima's Long-form Video and it is drawn, voiced and animated, with the same characters all the way through.

Is there a free AI that turns a story into a cartoon?

In Nima your first trailer, 15 to 20 seconds of your story, is animated free. Longer films are made on a monthly plan.

How long can my story be?

150 to 10,000 words an upload, about an hour of film.

Do I need to write the story first?

No. Describe the idea in a few lines and Nima writes it into a story, which you read and change before anything is drawn.

Can it turn my story into a comic book?

It makes a cartoon, not printed pages, but the comic book ink look draws it in inked comic style.

Do the characters talk?

Yes. Each speaking character gets a voice you choose from five auditions, and says the lines you wrote.

Paste your story. The trailer is free. Make my free trailer.