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How to Make a Tech Explainer Video: 6 Steps (2026)

Lan He avatarLan He
·Last updated Aug 8, 2026
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How to Make a Tech Explainer Video: 6 Steps (2026)
Summary

Covers six steps from fixing the audience's technical level through placing a tech explainer video where developers and buyers actually watch. Step 2 explains scripting for an audience that detects hand-waving, and why one accurate simplification beats three vague ones. Step 3 covers the architecture diagrams and data-flow visuals that carry technical explanation. Step 4 walks through producing footage for a system that has no physical form. Includes the engineering review that protects credibility, terminology consistency, placement on docs and developer channels, and five mistakes that lose a technical audience. 9 frequently asked questions cover length, jargon, and audience level.

How to Make a Tech Explainer Video

UPDATED: 2026-08-06 By Lan He, Content Lead

Making a tech explainer video takes six steps: fix the audience's technical level, script for people who detect hand-waving, design diagrams that carry the mechanism, produce the footage, run engineering review, then place it where technical viewers are. A tech explainer video takes about 25 minutes to produce.

Quick Version: How to Make a Tech Explainer Video

  1. Fix the audience's technical level before writing anything.
  2. Script one accurate simplification rather than three vague ones.
  3. Design architecture and data-flow diagrams that show the mechanism.
  4. Produce the footage for a system with no physical form.
  5. Run engineering review, because one wrong claim discredits the rest.
  6. Place it on docs, the product page, and developer channels.

How to Make a Tech Explainer Video Step by Step

Step 1: Fix the audience's technical level

Decide who this is for before writing a word: a backend engineer evaluating an integration, a CTO comparing architectures, or a non-technical buyer who needs enough to approve a purchase. These need genuinely different videos, and the common failure is producing one that lands between them.

Where both an engineer and their manager will watch, write to the engineer's standard of accuracy at the manager's level of assumed context. That combination works because accuracy costs the manager nothing, while vagueness costs you the engineer entirely.

A hand-drawn card row with one card circled and hatched, three plain cards beside it

Step 2: Script one accurate simplification

Simplify by narrowing scope, not by blurring mechanism. "Requests are routed to the nearest region" is a simplification. "Our platform intelligently optimises delivery" is hand-waving, and a technical viewer hears the difference immediately.

Use correct terminology and define each term once in the viewer's own frame. Avoiding the vocabulary reads as evasion; using it undefined loses the manager. Write 90 seconds to three minutes, roughly 220 to 450 words, and let the mechanism decide the length rather than a target runtime.

A hand-drawn script page with a hook line, three short blocks, and a boxed call to action

Step 3: Design the diagrams

Build the explanation around a data path rather than a component list. Show a request entering the system, moving through each stage, and where it currently gets stuck. An architecture diagram that animates the flow explains more than the same diagram held static with narration over it.

Introduce one element at a time and keep the layout stable as it grows. Technical viewers build a mental model of the diagram, and a layout that reshuffles between scenes destroys the model they were assembling. Keep terminology on screen identical to the narration, not a synonym.

A hand-drawn architecture diagram building up across six numbered panels

Step 4: Produce the footage

Technical subjects usually have nothing to film. Screen recording covers an interface but not infrastructure, and stock footage of server rooms and glowing networks actively damages credibility with this audience.

Pexo's text-to-video workflow generates the animated diagrams and data-flow sequences from a written description, which is what the format actually needs. For an interface, upload a screenshot and image-to-video conversion animates the real product inside the sequence rather than approximating it.

A hand-drawn split screen: a system diagram on the left, a chat interface generating video on the right

Step 5: Run engineering review

Have an engineer who works on the system watch it before release. Technical audiences treat one inaccurate claim as evidence that everything else is unreliable, and that judgment does not get revised later in the video.

Ask the reviewer for three specific things: any claim that is wrong, any simplification that has crossed into inaccuracy, and any term used loosely. The third is the one marketing review never catches, and it is the one engineers notice first. Pexo regenerates a single scene from a description, so a correction costs a sentence.

A hand-drawn checklist beside a diagram frame with a review stamp

Step 6: Place it where technical viewers are

Export 16:9 at 1080p or higher for the documentation landing page, the product page, YouTube, and conference screens. Architecture diagrams need horizontal room, which makes 16:9 the genuine default here rather than a legacy choice.

Pexo exports up to 4K plus vertical cuts. Keep expectations realistic about paid social: the density that makes a tech explainer work is exactly what a casual scroll rejects, so the docs page and developer channels usually outperform it by a wide margin.

A hand-drawn export dialog with two options labeled Docs and Product Page

How to Make a Tech Explainer Video with Pexo

The six steps above work with any tool. Pexo handles steps 4 through 6 in a single conversation, which covers the part of the format that has nothing to film.

Open the tech explainer video page and describe the piece: "A 2-minute tech explainer on how an edge cache reduces API latency, animated data path from client to origin, one bottleneck highlighted, precise technical narration for backend engineers." Pexo generates the diagram animation, records the narration, and exports.

Pexo create page for tech explainer videos showing the description box and preset chips

Adjust any scene by describing the change in the chat, and Pexo regenerates that segment alone. The platform runs across Seedance 2.0, Kling AI, and more.

For related formats, the saas explainer video page covers software products and product explainer video covers the general product format.

5 Mistakes That Lose a Technical Audience

1. Blurring the mechanism instead of narrowing the scope. "Intelligently optimises" is heard as having nothing to say.

2. Stock footage of server rooms. Glowing network graphics signal that nobody technical was involved.

3. Reshuffling the diagram between scenes. Viewers are building a mental model. A layout that moves destroys it.

4. Skipping engineering review. One wrong claim is treated as evidence the rest is unreliable, and that judgment is not revisited.

5. Pushing it into general paid social. The density that makes the format work is what a casual scroll rejects.

Frequently Asked Questions (FAQ)

What is a tech explainer video?

A tech explainer video explains how a technical product, system, or concept works, to an audience that is either technical itself or buying on behalf of technical people. Its distinguishing constraint is that the audience notices when an explanation is hand-waved.

How long should a tech explainer video be?

Ninety seconds to three minutes. Technical audiences tolerate more length than consumers when the content is dense, and abandon faster than consumers when it is padded. Length should follow the mechanism being explained.

How much jargon should a tech explainer use?

Use the correct term and define it once, in the audience's own frame. Avoiding terminology entirely reads as evasion to a technical viewer, while unexplained jargon loses the buyer sitting next to them. Precision plus one definition satisfies both.

Who is the audience for a tech explainer video?

Usually two people at once: the engineer who will evaluate it and the manager who will approve it. Write for the engineer's standard of accuracy at the manager's level of context, rather than splitting the difference.

Should a tech explainer show code?

Only if the code is the point, and only a few lines held long enough to read. A wall of scrolling code communicates that code exists, which the audience already knows. A single well-chosen snippet communicates how the thing is used.

How do I explain something with no physical form?

Use architecture diagrams and data flow. Show the request moving through the system, the point where the bottleneck occurs, the layer your product replaces. Animation of a data path is what makes abstract infrastructure followable.

Who should review a tech explainer video?

An engineer who works on the system. A technical audience treats one inaccurate claim as evidence that the rest is unreliable, which is why marketing-only review is the most expensive shortcut available in this format.

Where do tech explainer videos belong?

On the documentation landing page, the product page, and developer channels. Placement in general paid social usually performs poorly because the format's density is exactly what a casual scroll rejects.

What aspect ratio should a tech explainer use?

Use 16:9 for docs, product pages, YouTube, and conference screens, since architecture diagrams need horizontal room. Use 9:16 only for short excerpts, recomposing rather than cropping.

Lan He avatar
Lan He

Meet Lan, Senior Video Producer at Pexo, with over a decade of experience turning complex creative workflows into steps anyone can follow. A hands-on video editor and motion designer, he has taught thousands of creators how to ship video without the overwhelm, and he puts dozens of creative tools through real production work each year to see which ones actually hold up. At Pexo, he writes both step-by-step tutorials and best-of tool roundups, screen-recording each workflow himself and ranking tools on what they deliver in a real project rather than on their feature lists.

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