Write scroll-stopping scripts with proven hooks in seconds - from a topic, an angle, or a URL.
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Every failed short-form video fails in the script - the visuals and the voice just deliver the bad news. A working script isn't written prose read aloud; it's engineered speech: a hook that fronts the payoff, one idea developed in short spoken sentences, and a closing line that earns the follow. ShortLoom's script generation, powered by Claude, is built around those constraints - give it a topic, an angle, or a URL and it drafts a script paced for retention. Then the same script becomes the video's blueprint: the shot planner turns each line into a Seedance scene, the voiceover performs it, and Whisper times captions to the delivery. The writing is the product; everything downstream executes it. This page writes the script from a topic. When the script is already written, Script to Video Generator turns those lines into scenes, a voiceover, and captions.
One topic, written out. The topic is "Why harbor cranes keep working after midnight." This page stops when the lines are speakable. It does not build the shots. Harbor cranes do not stop when the city does. A container ship only earns money while it is moving. Every hour at the dock is a bill the cargo still has to pay. So the lights stay on, and the cranes keep lifting. The strange part is who stays awake to run them. Not the captain. A night crew, on a schedule the port published yesterday. Six lines, one idea each, hook on line one. Writing them spends no credit. Script to Video Generator is the other job: paste these same lines and it plans one scene per line, a voiceover, and captions. That page is linked below.
The hook is a promise made in the first line - a question, a stake, or a claim the viewer needs resolved - and everything after it is either keeping that promise or losing the viewer. Good scripts commit to one idea; the discipline isn't what to include but what to cut, because a 30-second video explaining two things explains neither. Write for the ear: short sentences, contractions, concrete nouns, no subordinate-clause pileups - if a line is hard to say aloud, it's hard to listen to. Open loops hold attention across the middle ('but that's not the strange part'), and the final line should do a job: pose the question that fills the comments, or set up the next video in the series. The reliable test is reading the script aloud at speed - anywhere you stumble, a viewer swipes. Structure survives across every niche; only the register changes.
The script is the control surface for the entire pipeline. Claude drafts it from your topic, angle, or a pasted URL, shaped by the style you pick - Viral Story scripts build narrative tension, Educational scripts sequence a concept, UGC Ad scripts follow hook-problem-product logic. Then each line becomes a unit of production: the shot planner briefs Seedance on one scene per line under a persistent style bible, so a script with strong visual nouns generates a visibly better video - 'the harbor at 3 a.m.' gives the planner more to work with than 'a bad situation'. One of nine voices performs it, and Whisper times karaoke captions to the actual delivery. Scriptwriting itself doesn't consume credits - you spend 3 credits when you generate a standard 30-second video from it - so refining the topic and regenerating until the angle is sharp costs nothing.
Because the script determines performance, the fastest-improving channels iterate on scripts, not on effects. Treat hooks as your test variable: the same underlying idea with three different opening lines is three different videos, and your analytics will tell you which promise your audience buys. Watch where retention drops in published videos and map it back to the script line where it happened - that's usually a sagging middle or a hook the body didn't honor. Keep a swipe file of hooks that stopped you as a viewer and feed those patterns into your topics. Common script mistakes: hooks that overpromise (the algorithm punishes swipe-outs after the reveal), writing paragraphs instead of lines, hedging language that dilutes claims into mush, and endings that trail off instead of asking something. A script-first workflow also compounds across platforms - the same tested script publishes to TikTok, Shorts, and Reels in one click each.
Enter your topic or angle
AI writes a hook-driven script
Tweak the tone, length, and CTA
Generate the scenes from your script
Writing scripts happens as part of generation - you only use a credit when you generate the actual video scenes.
Yes - the script is generated from your topic, and you can refine the topic and settings to reshape it before generating the scenes.
No - this page writes the script from a topic. Paste a finished script into the Script to Video Generator (related tools below) to turn those lines into scenes, voiceover and captions.
Yes. From a topic, ShortLoom writes the script, then generates a cinematic scene per beat, a voiceover, and captions. You can also paste a finished script and skip the writing step.
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