AI Script Generator for TikTok, Reels and Shorts

Paste a brand brief or upload it as a PDF or Word file, pick the platform, style and length, and get a script you can film today: a hook for the first 3 seconds, timestamped scenes with visual cues, a caption and a call to action.

ChamsPilot · Free Tools

AI Script Generator for TikTok, Reels and Shorts

Paste a brand brief or upload it as a PDF or Word file, pick the platform, style and length, and get a script you can film today: a hook for the first 3 seconds, timestamped scenes with visual cues, a caption and a call to action.

From brand brief to script in four steps

  1. Add the brief: Paste the brand's brief or upload a PDF, DOCX or TXT file. Include the product, the key message and any lines you must say.
  2. Pick the platform: TikTok for fast cuts, Instagram Reels for a polished look, YouTube for a clearer story arc.
  3. Choose style and length: Viral, educational, storytelling, comedy, review or unboxing, from 15 seconds to 3 minutes.
  4. Generate and film: You get the hook, the scene-by-scene script with timestamps and visual cues, the caption and the call to action. A free account shows the full script.

The five parts of every script

Hook for the first 3 seconds

The opening line or action, written to stop the scroll, because viewers decide within the first seconds.

Script with timestamps

Dialogue and actions beat by beat, with visual cues in brackets, such as [close-up of the serum drop].

Caption

A post caption with hashtags, ready to paste.

Call to action

One clear ask: follow, comment, tap the link or use the code.

Formats and sounds to try

Ideas for formats, sounds and hooks. The AI writes them as suggestions; they are not a live trend feed, so check what is trending in the app before you post.

Script lengths and how many words to say

Length in the toolSpoken words, aboutTypical use
15 seconds35One hook and one product moment
30 seconds70Hook, two or three beats, call to action
60 seconds145A short demo or a quick review
90 seconds215A fuller review or a tutorial
3 minutes430A YouTube integration or a detailed tutorial

Planning figures at about 2.4 spoken words per second, the pace ChamsPilot's video engine plans voiceovers at. Your own pace may differ: read the script aloud with a timer.

How each platform shapes the script

Platform choices in the generator

PlatformHow the script is writtenLengths offered
TikTokFast cuts and direct lines to camera15 seconds to 3 minutes
Instagram ReelsAesthetic shots and a polished look15 seconds to 3 minutes
YouTubeA story arc from setup to payoff15 seconds to 3 minutes

Example outline: a 30-second sponsored TikTok

An illustration. The brief: a lightweight vitamin C serum; key message: it fits a 60-second morning routine; the video must show the texture and keep the ad label on screen. Style: review. The script takes this shape:

Limits and privacy

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4.5 / 5 · 1,422 ratings

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FAQ

How does the AI script generator work?

Paste the brief or upload it, then choose TikTok, Instagram or YouTube, one of six styles (viral, educational, storytelling, comedy, review or unboxing) and a length from 15 seconds to 3 minutes. The AI returns five parts: the hook, the timestamped script with visual cues in brackets, a caption with hashtags, the call to action and ideas for formats and sounds to try.

How is it different from a general AI chatbot?

It starts from the brand's brief and a fixed script format, so what comes back is something you can shoot: what to say, what to show and when, plus the caption and the call to action. You do not have to write a prompt, and PDF and Word briefs are read for you.

Can I upload a brand brief as a PDF or Word file?

Yes: PDF, DOCX or TXT up to 25 MB. Files are checked before they are read, and the first 3,000 characters of the text are used, so for a long brief paste its key requirements instead.

How many free scripts can I generate?

2 without an account, and a free account lets you read them. With a free account you get 2 more generations; paid plans are not limited by this counter.

How do you write a viral TikTok script?

Open with a hook in the first 3 seconds, give each beat one idea and something new on screen, say the key message early and end with one clear call to action. No script guarantees views, so test different hooks and keep what your audience watches to the end.

How long should a sponsored video script be?

Match the length the brand is paying for: a 30-second TikTok or Reel is about 70 spoken words and a 60-second video about 145. Leave a few seconds for the call to action and the product on screen.

Can AI write a script from a brand brief PDF?

Yes. Upload the brief as PDF, DOCX or TXT: the tool reads its first 3,000 characters and writes a script around the requirements. Check the must-say lines and any banned claims against the brief before filming.

What is a hook in a short video?

The first line or image of the video, designed to make a viewer stop scrolling: a question, a bold statement, a surprising visual or the result shown first. The generator writes a separate hook for the first 3 seconds of every script.

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