Explainer Video Scripts: 5 Steps to a Production-Ready Handoff
An explainer video script is the production blueprint that pairs every spoken line with the visual that carries it, and the format that survives handoff best is the two-column A/V script. Before you draft a single line, write a one-sentence purpose for the video and a one-to-two sentence hook that promises the viewer a benefit. Everything else hangs off those two things.
TL;DR:
- Choose the runtime from its placement: social ads need brief cuts, while homepage explainers can run longer and complex products may need extended versions.
- Build the draft around one measurable purpose and a single call to action; make the opening benefit clear within the first 5 to 10 seconds.
- Cut any voiceover line without a clear visual job; mark each remaining beat’s approximate duration and write screen text and approval ownership explicitly.
- Review captions by hand before publishing, then upload a .vtt or .srt file as the default track and test the final video with sound off.
Table of Contents
- What does an explainer script actually do?
- How do you write the script, step by step?
- How should you format the script for production?
- Which templates can you adapt for short, standard and extended videos?
- Why do captions matter, and how do you prepare them?
- What should you check before handing the script off?
- Why do formatted scripts save so much money?
- Want us to take your script from page to screen?
- FAQ
- Sources
What does an explainer script actually do?
A script is the single source of truth for production. The voice talent reads from it, the animator builds from it, and the editor cuts to it. Adobe describes a script as a typed blueprint that includes sluglines, action lines, dialogue and visual cues, so nobody on the team has to guess. If a lower third, a B-roll shot or a timing note is not in the script, it will be improvised later, and improvisation is where budgets go to die.
Length is your first real decision. A short cut lives in social feeds and paid placements, where you earn attention quickly or lose it. A longer explainer suits a homepage or landing page, where the viewer already has some intent. An extended version can carry a more complex product, as long as the visuals keep moving.
That choice drives everything downstream. Shorter formats force you to cut words and let imagery do the explaining. Longer formats give you room for a second proof point, but they demand more visual variety, or you end up with a narrated slideshow. Pick the length based on where the video will live, not on how much you want to say.
How do you write the script, step by step?
Most people open a blank document and start with “Hi, we’re a company that…”. Don’t. Work in this order, and you will have a lean first draft before lunch. HubSpot’s script guide follows a similar path: audience and goal first, then an outline, then section-by-section writing, then a verbal run-through.
- Define one purpose and one measurable CTA. “Educate viewers” is not a purpose. “Get a viewer to book a demo from the pricing page” is.
- Write a hook of one to two sentences. It should promise a benefit within the first 5 to 10 seconds. Lead with what the viewer gains, not with your company name.
- State the problem in one or two lines. Name the pain in the viewer’s own words. If you need a paragraph to describe it, the problem is not focused enough.
- Deliver the solution and show how it works in two to four beats. Each beat gets a matching visual cue. If a beat has no visual job, it probably does not belong.
- Close with a clear CTA. One action, said once, plus an optional micro-step such as “download the checklist” for viewers who are not ready to buy.
Write the voiceover the way people talk. Read every line out loud, and rewrite anything that makes you stumble. G2’s workflow also ends with a verbal run-through for this reason: your ear catches what your eye forgives.
The writer’s rule that saves the most money: wherever the visual can show it, cut the words. A product dashboard on screen does not need a sentence describing the dashboard. Good storytelling structure helps here too, and this piece on the role of storytelling in marketing is a useful companion for shaping your beats.
How should you format the script for production?
Use two columns. The left column holds the visuals: B-roll, graphics, on-screen text, sluglines and action lines. The right column holds the audio: voiceover, dialogue with speaker labels, and sound effects. The two-column A/V format is an industry standard because anyone on the team can find what they need at a glance, and because it exposes lazy writing. If you cannot fill in the visual cell next to a line of audio, that line is probably unnecessary. We treat that as a hard rule, and it is the quickest filter for visual filler.
Timing is simple arithmetic. Keep the voiceover conversational, and budget accordingly:
Estimate the word count from the video’s length, then read the script aloud and adjust until the pacing feels natural.
Mark every on-screen element explicitly. Write lower thirds in the left column with the exact text, label on-screen copy as “SUPER:” followed by the words, and note where captions sit so graphics do not collide with them. Put each beat on its own row, and give each row an approximate duration. A producer reading this should be able to quote, schedule and build without sending you a single clarifying email.
Which templates can you adapt for short, standard and extended videos?
Steal these structures and swap in your own product. Each one is written in two-column logic: visual first, voiceover second.
- Short social ad. Visual: close-up of the frustrating task. VO: “Still doing this by hand?” Visual: product screen, one clean action. VO: “[Product] does it in one click.” Visual: result on screen. VO: “Try it free today.” Super: URL.
- Standard explainer. Hook: the benefit, stated flat. Problem: one relatable scene. Solution: the product appears. How it works: a few beats, each with a matching visual. CTA: one action, spoken once.
- Extended product explainer. Same skeleton, with another how-it-works beat and a proof moment such as a customer result on screen. Add B-roll cues like “over-the-shoulder shot of a user at a laptop” so the editor does not have to invent coverage.
Annotate your draft before it leaves your hands. Cut any line that restates what the visual already shows. Move explanations that confuse into on-screen text, where the viewer can read them while the voice carries the emotion. If a sentence needs a second sentence to justify it, delete both.
Why do captions matter, and how do you prepare them?
Captions do two jobs at once. They make the video accessible, and they make it indexable, because search engine bots cannot listen to audio and a caption file hands them the text. Treat them as a standard deliverable, not an afterthought.
The workflow is short:
- Generate automated captions on your host or with a transcription tool.
- Review them by hand. Automated output mangles product names and jargon, and the timing drifts.
- Export the file as .vtt or .srt.
- Upload it to your host and publish it as the default track where the platform allows. Vidyard’s caption guide walks through this, including the fact that published captions are injected into page metadata, which helps discoverability.
Keep the file UTF-8 encoded so special characters survive, and check the final upload with the sound off. If you are still choosing a host, our Wistia versus Vimeo breakdown covers how each handles captions and analytics.
What should you check before handing the script off?
Here is the pre-flight checklist, plus the mistakes that cost the most revisions:
- Assets are ready: logo files, fonts, brand colors and any product footage.
- On-screen copy is written out exactly, not implied.
- Timing targets are marked per beat, and the total matches the word-count table.
- Caption files are planned, with a named owner for reviewing them.
- One person has approval authority, and the script says who.
- Most common failure: over-explaining in the voiceover while the visuals sit idle.
- Second most common: no B-roll cues, which forces the editor to guess.
Pro Tip: If you cannot write a clear visual job for a voiceover line, cut the line. For tricky names, spell them phonetically in the VO column, and use commas and dashes sparingly to mark where the narrator should pause, as Vidyard’s script tips recommend.
Why do formatted scripts save so much money?
A sloppy script is a loan you repay during production, with interest. Every vague line becomes a clarifying email, every missing cue becomes a reshoot or a stock-footage scramble, and every round of “can we just see something different?” burns an editor’s day. Say a script arrives with no visual column: the animator builds a draft from guesses, the client reacts to guesses, and you have paid for two rounds before anyone agrees on what the video is. A formatted script front-loads that argument into a cheap document, where changing your mind costs a keystroke. I would rather spend an afternoon on the page than a week in the edit bay, and if you would rather hand the whole thing off, we can take it from here.
— Chris Breikss
Want us to take your script from page to screen?
If you would rather not wrestle with columns, timing and caption files yourself, our video production team runs the whole route. We move fast and skip the long review cycles, and you can watch results on a live dashboard instead of waiting for a monthly report.
Request a quote at Rivetline Video Production.
FAQ
How long should an explainer video script be?
It depends on the placement, so decide the video length first. Social ads are usually short, homepage explainers can take more time, and more complex products may need an extended version. Your word count follows from that length.
What is the best format for an explainer video script?
The two-column A/V format, with visuals on the left and audio on the right. Industry practitioners favor it because production teams can scan it quickly and it exposes lines with no visual purpose.
Do explainer videos need captions?
Yes. Captions make the video accessible and give search engines text to index, since bots cannot process audio. Review automated captions by hand before you publish them.
What is the difference between .vtt and .srt files?
Both are plain-text caption formats that hold the words and their timestamps, and most hosting platforms accept either one. Pick whichever your host prefers, keep the file UTF-8 encoded, and upload it as the default track when you can.
Sources
- Speakwrite
- Helpwiki
- How to Write a Video Script Template + Video
- How to add captions to your video – Vidyard Support
