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Create Videos with Remotion

1. What is Remotion?

Remotion is an open-source framework that allows developers to create real videos using React and JavaScript instead of traditional video editing software. Instead of dragging layers on a timeline like in Premiere or After Effects, you write React components. Each frame of the video is rendered from your code.

This means:

  • 🎬 Videos are generated from logic

  • 📊 Videos can be data-driven

  • 🔁 You can render thousands of personalized videos

  • ☁️ You can scale rendering in the cloud

It is especially powerful for:

  • Automated marketing videos

  • Social media content generation

  • Dashboard/video reports

  • Dynamic intro animations

  • AI-generated videos

2. Why Use Remotion Instead of Traditional Video Editors?

Traditional editors:

  • Manual timeline editing

  • Hard to automate

  • Hard to version control

  • Not scalable

Remotion:

  • Everything is code

  • Git-friendly

  • Reusable components

  • Fully programmable animation

Think of it like: “After Effects for developers”

If you know React, you already know 70% of Remotion.

3. Installing Remotion (Step-by-Step)

Prerequisites

  • Node.js (v16+ recommended)

  • npm / yarn / pnpm

Step 1: Create a New Project

Run:

npx create-video@latest

Then choose:

  • Project name

  • Template (Select “Hello World”)

This command scaffolds:

  • React setup

  • Remotion configuration

  • Example composition

4. Running Remotion Studio

After installation:

npm i
npm run dev

Then open:

http://localhost:3000

You will see:

  • Video preview

  • Timeline

  • Frame scrubber

  • Composition list

5. Understanding How Remotion Works

Remotion renders videos frame by frame.

Every frame:

  • React component executes

  • Frame number changes

  • UI updates

  • Frame exported as image

  • All images encoded into mp4

Core concepts:

1️⃣ useCurrentFrame()

Returns current frame number.

 
const frame = useCurrentFrame();
 
2️⃣ interpolate()

Maps frame range into animation values.

 
const scale = interpolate(frame, [0, 30], [0.5, 1]);
 
3️⃣ AbsoluteFill

Full-screen container component.

6. Creating a Simple Sample Video

This example will include:

  • Animated gradient background

  • Spring title animation

  • Subtitle slide-in

  • Floating circles

  • Progress bar

  • Background audio

📁 Which File To Replace?

If you used the Hello World template, replace:

 
src/HelloWorld.tsx
 

If you used Blank template:

Create:

 
src/AdvancedIntro.tsx
 

Then register it inside Root.tsx.

🧠 Full Advanced Example Code

Replace your component with:

import {

AbsoluteFill,
useCurrentFrame,
useVideoConfig,
interpolate,
spring,
Sequence,
Audio
} from “remotion”;

export const AdvancedIntro: React.FC = () => {
const frame = useCurrentFrame();
const { fps, durationInFrames } = useVideoConfig();

// Spring animation for title
const scale = spring({
frame,
fps,
config: {
damping: 100,
stiffness: 200,
},
});

// Subtitle slide animation
const translateY = interpolate(frame, [20, 60], [100, 0], {
extrapolateLeft: “clamp”,
});

// Progress bar animation
const progress = interpolate(
frame,
[0, durationInFrames],
[0, 100]
);

return (
<AbsoluteFill
style={{
background: `linear-gradient(135deg, #1e3c72, #2a5298)`,
justifyContent: “center”,
alignItems: “center”,
overflow: “hidden”
}}
>
{/* Background floating circles */}
<div
style={{
position: “absolute”,
width: 300,
height: 300,
borderRadius: “50%”,
backgroundColor: “rgba(255,255,255,0.05)”,
transform: `translateX(${Math.sin(frame / 20) * 50}px)`
}}
/>

{/* Title */}
<div
style={{
fontSize: 80,
fontWeight: “bold”,
color: “white”,
transform: `scale(${scale})`,
textAlign: “center”
}}
>
Welcome to Remotion
</div>

{/* Subtitle */}
<Sequence from={20}>
<div
style={{
position: “absolute”,
top: “60%”,
fontSize: 40,
color: “#ddd”,
transform: `translateY(${translateY}px)`
}}
>
Programmatic Video with React
</div>
</Sequence>

{/* Progress Bar */}
<div
style={{
position: “absolute”,
bottom: 50,
left: 0,
height: 6,
width: `${progress}%`,
backgroundColor: “#00ffcc”
}}
/>

{/* Background Music */}
<Audio src=“https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3” />
</AbsoluteFill>
);
};

 

🧩 Register It in Root.tsx

Inside src/Root.tsx:

 

import { AdvancedIntro } from “./AdvancedIntro”;

<Composition
id=“AdvancedIntro”
component={AdvancedIntro}
durationInFrames={180}
fps={30}
width={1920}
height={1080}
/>

 

🎥 What This Video Now Includes

Feature What It Demonstrates
spring() Natural motion animation
interpolate() Frame-to-value mapping
Sequence Timeline control
Audio Sound integration
Dynamic background Math-based animation
Progress bar Duration awareness

 

 

7. Rendering the Final Video

Run:

 
npx remotion render src/index.ts AdvancedIntro output/video.mp4
 

After rendering:

  • Video exported as mp4

  • Ready for YouTube / TikTok / Instagram

 

8. Video Demo Section

 

9. When Should You Use Remotion?

Remotion is ideal when:

  • You need automated video generation

  • You want data-driven content

  • You build SaaS tools that generate videos

  • You want scalable video rendering

Not ideal when:

  • You prefer manual artistic editing

  • Complex cinematic timeline editing required

10. Final Thoughts

Remotion bridges the gap between:

  • Software engineering

  • Video production

If you are a developer, this tool unlocks an entirely new creative workflow.

Instead of editing videos,
you now engineer them.

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