Nobody reads your README.
I know that's a painful thing to say, especially after you spent three hours writing it. But here's the reality: when someone lands on your GitHub repo or your side project's landing page, they skim. If they can't figure out what your thing does and why it matters in about 30 seconds, they're gone.
I ran into this problem with a project I was working on. I had solid documentation, a clear API reference, a getting started guide — the works. And the engagement was still flat.
Then I added a two-minute explainer video to the top of the README and the landing page. Downloads tripled in the next two weeks.
Here's the thing though: I'm a developer, not a video person. I don't own a camera setup, I can't do motion graphics, and I'm not paying $500 for a Fiverr explainer video for a side project.
So I found a different way. Let me walk you through it.
Why Whiteboard/Explainer Videos Work So Well for Dev Projects
Before we get into the how, it's worth understanding why this format works.
1. They're process-native
Most of what we build is abstract — APIs, algorithms, data pipelines, SaaS tools. Whiteboard animation is literally designed to explain abstract things. The hand-drawing metaphor signals: "I'm going to walk you through this step by step." It puts viewers in a learning mindset.
2. They match your audience's expectations
Developers learn from YouTube. They're used to screencasts and explainers. A short animated video at the top of your project page feels native, not corporate.
3. They're scannable in a way text isn't
A viewer can pause, rewind, or skim a 2-minute video far more intuitively than scrolling through 1,500 words of docs. The format is inherently self-pacing.
4. They work across contexts
Same video can go in your README, your Product Hunt launch, your newsletter, a Twitter/X thread, LinkedIn, an email signature. One asset, many uses.
The Old Way vs. The New Way
Old way:
- Write a script (1–2 hours)
- Record a voiceover (get a decent mic, mess around in Audacity)
- Use something like After Effects or Vyond to animate it (several hours, steep learning curve, expensive subscription)
- Export, compress, upload
- Realise the voiceover sounds bad, redo it
- Total time: a weekend, minimum
New way (AI-assisted):
- Paste your project description, your README URL,PDF, image or just type a prompt
- AI generates the script, illustrations, and voiceover automatically
- Review, tweak if needed, download
- Total time: 15–30 minutes
I used Whiteboard Video Maker for this. You give it a prompt, a URL, an image, a PDF, or a doc — and it produces a whiteboard animation video with a script, hand-drawn-style illustrations, and a voiceover. No design skills needed.
A Practical Walkthrough for Developers
Here are three specific scenarios where this approach really pays off.
Scenario 1: Explaining your open source library
You've built a utility library — let's say a lightweight state machine for JavaScript. The GitHub README has installation instructions, API docs, and some code examples. But nobody really gets what it's for until they've read the whole thing.
What to feed the AI:
Prompt: "Create a 2-minute explainer video for a JavaScript state machine
library called XState-lite. It helps developers manage async UI states like
loading, error, and success without boilerplate. Target audience: React devs."
Or just paste the README URL directly.
What you get:
A video that opens with the problem ("managing async state in React is messy"), introduces your solution, shows a brief conceptual diagram of how state transitions work, and ends with a call to action to check out the repo.
Scenario 2: Onboarding users to your SaaS API
You've shipped a REST API. You've got Swagger docs. But your support inbox is full of "how do I get started?" questions.
A short video walkthrough of the authentication flow and your first API call reduces that support load significantly.
What to feed the AI:
Upload your API docs PDF, or paste your getting started page URL. Prompt it with:
"Create a tutorial video explaining how to authenticate and make a first
API call with the [Your Product] API. Keep it under 3 minutes.
Audience: backend developers who are new to the platform."
The AI will build a logical sequence: get your API key → set the auth header → make a test request → handle the response. No screencasting required.
Scenario 3: Product Hunt or Show HN launch
You're about to post to Product Hunt or Show HN and you want to make a strong first impression. A video embed on your PH listing can dramatically increase upvotes and conversion to signups.
Here, the key is framing. You don't want a product demo — you want a "problem → solution" story.
Prompt structure that works:
"Create a 90-second whiteboard explainer video for a product launch.
Start with the problem: [describe the pain point]. Then introduce
[your product name] and explain how it solves the problem.
End with a clear CTA to try it for free."
Keep it under 2 minutes. Attention is short on launch platforms.
Tips for Developer-Friendly Explainer Videos
A few things I've learned after making several of these:
Keep the scope tight. Don't try to explain your entire product in one video. Pick one use case, one workflow, or one concept. "How authentication works in [your app]" beats "Everything [your app] can do."
Front-load the problem. The first 15 seconds should state the pain clearly. If the viewer doesn't recognise their own problem in those first few seconds, they won't stick around for your solution.
Use your actual terminology. When prompting the AI, include the specific terms your users use. If your product deals with "webhooks," "event streams," or "idempotency keys," say so. Generic language produces generic videos.
Add the video to your README. GitHub doesn't support embedded video autoplay, but you can add a GIF thumbnail that links to the video hosted elsewhere (YouTube, your own domain, etc.). The visual thumbnail alone stops the scroll.
Pair it with text docs, don't replace them. The video is the front door. The detailed docs are the house. Both need to exist.
Does It Really Work?
Here's a rough benchmark from my own experience and from other devs I've spoken to:
| Asset | Avg. time on page | Conversion to signup/install |
|---|---|---|
| README only | ~45 seconds | Baseline |
| README + explainer video | ~2 min 15 seconds | +2–3× |
Obviously, your mileage will vary depending on your product and audience. But the directional result is consistent: video increases time-on-page, and time-on-page correlates with conversion.
The Cost/Effort Calculation for Side Projects
Here's why I think this matters especially for indie devs and side projects:
You're probably not going to hire a video agency. You're probably not going to spend a weekend learning After Effects. But you can spend 20 minutes feeding a prompt into an AI tool and walking away with something genuinely useful.
The opportunity cost of not doing it is: your project looks less polished than it actually is, potential users bounce, and you're competing for attention with products that do have explainer videos.
A developer with a great product and no explainer video will consistently lose to a slightly worse product with a clear two-minute video. That's the unfortunate reality of how attention works on the internet in 2026.
Getting Started
If you want to try this for your own project:
- Go to whiteboard-video.com — there's a free tier to test it out
- Paste your project URL, your README, or just type a plain-English description of what you built
- Pick a voice and style
- Let it generate, then tweak the script if needed
- Download and drop it into your README, landing page, or Product Hunt listing
The whole process for a first video is under 30 minutes. For a second video on a different feature, you'll be down to 10.
Wrapping Up
Documentation is part of your product. If the front door of your project is a wall of text, you're losing people who would have loved what you built.
Explainer videos used to require real production budget or serious time investment. AI has changed that calculation. The barrier is now low enough that there's no good reason not to have one.
Go ship a video for your next side project. Your future users will thank you for it.
Have you made explainer or tutorial videos for your dev projects? What's your current workflow? Would love to hear what's worked in the comments.
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