Free tool · AI script generator
Free AI script generator for videos, ads and podcasts.
Say what you're making and the assistant writes a script for it, split into lines and speakers and written to be read aloud. Then voice it in the same place.
- Free: about 100 short writing jobs
- No card, no time limit
- A free account is all it takes: no card, and the tool opens with this already in place.
01How it works
Three steps, start to finish.
- Step 1
Describe it
What it's for, how long it runs, the tone and how many voices. One or two sentences.
- Step 2
Read the draft
The script comes back as lines with speakers. Write it again, or bring it in.
- Step 3
Polish and voice it
Rewrite, shorten or translate any line, cast a voice per speaker and generate.
02Made for
Where people use it.
- YouTube & videoVoiceovers paced to your cut“Three years ago, this valley was underwater.”A 10-minute voiceover ≈ 1,500 credits
- Ads & marketingEvery version of the spot, today“Your mornings just got faster.”Ten versions of a 30-second ad ≈ 750 credits
- PodcastsA host, a guest, a whole show“Welcome back to Field Notes. Today: why cities are getting quieter.”A 30-minute episode ≈ 4,500 credits
- E-learning & trainingLessons people finish“In this lesson, we'll look at how compound interest works.”A 10-module course ≈ 7,500 credits
03Details
What the free plan covers.
- Free to start
- About 100 short jobs. A brief or a line costs 10 credits; longer text costs 10 for every 500 words.
- Written for the ear
- Short sentences and plain words, the way a voiceover should sound.
- Speakers
- A dialogue comes back with its speakers, ready for a voice each.
- Then
- Rewrite for the ear, shorten, fix the grammar, split into lines or translate.
04Questions
Before you start.
An AI script generator is only as good as the brief you give it. This guide covers what to put in the brief, how to judge the draft, and how to get from a draft to a voiced script without starting over.
What to put in the brief
Five things make the difference: what it's for, how long it runs, who it's for, the tone, and how many voices. “A 45-second Instagram ad for a dog-walking app, playful, two voices: a dog owner and a narrator” gets a far better first draft than “an ad for my app”.
If there's something it must say (a price, an address, a call to action), put it in the brief word for word.
Judge the draft by ear
Read the draft aloud, or better, voice it. Lines that look fine on screen can be too long to say in one breath. Rather than rewriting by hand, select the line and ask for a rewrite for the ear, or shorten it to the seconds you have.
- Too long? Select the line and shorten it.
- Reads like a brochure? Rewrite it for the ear.
- One long paragraph? Split it into one sentence a line.
Script length and timing
At about 150 words a minute, a 30-second spot is around 75 words, a 60-second intro around 150 and a 5-minute explainer around 750. The script length calculator times any draft at three paces.
From script to voiceover
The script lands in Leelo's Studio as lines with speakers, so the next step is casting: a voice per speaker, then Generate. The assistant costs 10 credits for every 500 words it works on, so a brief or a rewritten line is 10 credits, and most of the free plan's 1,000 credits are still there for voicing. More on what the assistant does: AI script writer.
Try it on your own work.
1,000 free credits to try everything. No card needed, and nothing to install.
Start free: 1,000 credits