YouTube Shorts Script Generator
Type your topic — get 3 full YouTube Shorts scripts with 2-second hook, setup, beat-by-beat spoken lines, on-screen text and B-roll shots. 15, 30, 45 or 60 seconds. Built for the 2026 Shorts algorithm.
How to write a YouTube Short that keeps viewers past 2 seconds
YouTube Shorts is not TikTok. The 2-second retention cliff is steeper, the loop counter matters more, and the subscribe rate is what actually grows the channel. A great Short is built beat by beat: the hook has to work in 2 seconds flat (not 3), the setup pays it off before second 7, the middle beats deliver ONE clear payoff, and the CTA either loops the viewer back or asks for the subscribe with a real reason. This generator gives you 3 scripts per topic in 3 frames (Straight, Story/POV, Contrarian) so you can shoot the one that matches your channel's voice. Every beat comes with on-screen text (which the Shorts algorithm reads) and a B-roll cue (what to actually film) — the two things that kill script-writing time. Set length to 15s for max loops, 30–45s for the sweet spot, 60s only when the story genuinely earns it.
YouTube Shorts script generator FAQ
What length works best on YouTube Shorts?+
30–45 seconds is the current sweet spot: long enough for one payoff, short enough to loop. 15s wins on velocity and completion rate (great for niches with lots of retention). 60s is the hard cap and only works if your topic genuinely needs the runway — completion drops sharply past 45s.
Why 3 scripts per topic?+
Different topics need different framings. Straight is fast and direct — best for tips and how-tos. Story/POV pulls emotional viewers and works great for personal-brand channels. Contrarian sparks comments and shares. We generate all three so you pick the frame your audience responds to this week.
What's on-screen text and why does it matter for Shorts?+
On-screen text is the caption overlay (like Submagic or CapCut). Two reasons it matters: (1) the YouTube Shorts algorithm reads and ranks on it, (2) 85% of Shorts viewers watch without sound. We give you 3–6 word overlay cues per beat, so your captions capture the keyword without repeating the spoken line.
How many words fit in a 60-second Short?+
~150 words at natural cadence (2.5 words/sec). 15s ≈ 37 words, 30s ≈ 75, 45s ≈ 112, 60s ≈ 150. This tool budgets your script to your chosen length so you never run over the hard 60s cap.
Is this really free?+
5 free script generations per day per IP. Sign up for Postlabs for unlimited generations plus full Shorts automation (script → voice → video → publish).
Does YouTube penalize AI-written scripts?+
No. YouTube has publicly stated it does not penalize AI-written scripts — what the algorithm reads is completion rate, loops, and subscribes. Write for those and you're safe.
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Scripts win the Short. Postlabs wins the channel.
Postlabs turns one idea into full YouTube Shorts, TikToks and Reels — script, voice, video, captions, publishing. Automated 7 days a week.
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