Remotion Guide
Complete guide to the Remotion framework for making videos with React
🎬 Basics
Remotion — A Framework for Making Videos with React
Programmatic video creation where JSX components become video frames
Remotion is an open-source framework that renders React components frame-by-frame to generate MP4/WebM videos. Instead of After Effects or Premiere, you create videos with code — ideal for data-driven bulk video generation, automated social media content, and SaaS video features
Remotion Internal Architecture — The Pipeline from Frames to Video
Dissecting the rendering pipeline: Headless Chrome → screenshots → FFmpeg encoding
Remotion rendering has 3 stages: (1) Create React bundle with Webpack/esbuild (2) Screenshot each frame in Headless Chrome via Puppeteer (3) Encode image sequence to MP4/WebM with FFmpeg. This pipeline is the core of turning code into video
Remotion Composition — How to Structure Your Video
Declarative video structuring by composing scenes with Composition, Sequence, and Series
In Remotion, videos are structured as Composition (top-level container) → Sequence (time segment division) → individual component hierarchy. Just like designing a component tree in React, you can declaratively structure the video timeline
🎯 Animation & Media
Remotion Animation — Creating Motion with spring() and interpolate()
Natural video animation with physics-based springs and interpolation functions
Remotion uses frame-based animation instead of CSS transitions. spring() provides natural bounce/deceleration based on physics engine, interpolate() maps frame ranges to arbitrary value ranges. Combining both enables professional motion graphics
Remotion Audio & Subtitles — Synchronizing Sound and Visuals
Synchronize audio/video sources to frames with <Audio>, <OffthreadVideo>, useAudioData()
Remotion controls audio at frame level. Insert BGM/SFX with <Audio>, extract waveform data with useAudioData() for visualizers. Composite existing video with <OffthreadVideo>, sync subtitles at frame precision with @remotion/captions
🚀 Production
Remotion Data-Driven Video — Auto-Generate Videos from API/DB Data
Pattern for safely injecting external data into videos with calculateMetadata + delayRender
Beyond static videos, a pattern for dynamically generating videos based on API responses or DB data. Fetch data before rendering with calculateMetadata, inject via getInputProps(). delayRender() guarantees async loading completion for safe rendering without blank frames
Remotion Lambda — Parallel Rendering Thousands of Videos on AWS
Serverless video pipeline where Lambda functions distribute frame rendering and combine on S3
Remotion Lambda distributes video rendering across AWS Lambda. Splits one video into N chunks rendered simultaneously by N Lambdas → combines chunks on S3 for final video. Can reduce 10-minute local rendering to under 1 minute
Remotion Player — Real-Time Video Playback in the Web Browser
Embed interactive video preview in React apps with @remotion/player
Remotion Player is a component that plays React components as real-time video in the browser without rendering. Users can adjust parameters and see results instantly — ideal for SaaS video editors and preview features
Remotion Best Practices — Production Video Project Tips
Collection of practical know-how from project structure to performance optimization, debugging, and deployment
Practical tips from running Remotion in production: project directory structure, rendering performance optimization (prefetch, image optimization, memoization), debugging techniques, CI/CD pipeline design, common mistakes and solutions
📖 Remotion Code Reading
Remotion Code Analysis — Bundle System and Webpack/esbuild Integration
Tracing how bundle() transforms React components into renderable HTML through source code
Analyzing the bundling — first step of Remotion rendering — at source code level. From Webpack config in packages/bundler/, esbuild config in packages/studio/, to how CompositionManager collects metadata. Follow the code to understand how a React project transforms into HTML executable by Headless Chrome
Remotion Code Analysis — renderMedia() and the Frame Rendering Loop
Source code analysis of the core rendering loop: screenshotting frames with Puppeteer and combining with FFmpeg
Tracing the renderMedia() → renderFrames() → stitchFramesToVideo() chain in packages/renderer/. How Puppeteer injects currentFrame into Chrome pages, delayRender/continueRender implementation, multi-thread frame distribution, and FFmpeg stitching
Remotion Code Analysis — Sequence and Timeline Time Management Implementation
Internal mechanism implementing local time with SequenceContext and how useCurrentFrame() works
The core of Remotion time management is SequenceContext. <Sequence from={60}> resets child component frames to 0 via React Context for local time. useCurrentFrame() calculates final frames considering nested SequenceContext. This pattern enables independent scene development and free arrangement
Remotion Code Analysis — spring() Physics Engine Internals
The math and code of spring() simulating damped spring differential equations in JavaScript
spring() is not a simple easing function but actual physics simulation. It numerically solves the damped harmonic oscillator differential equation per frame to generate 0→1 values. mass, damping, stiffness parameters determine whether the solution is overdamped/underdamped/critically damped
💡 Practical
Remotion vs Sora vs Runway — Video Generation Tool Comparison and Selection Guide
Code-based vs AI generation vs traditional editing — strengths and suitable use cases per category
Video generation tools fall into 3 categories: (1) Code-based (Remotion, Motion Canvas) — optimal for motion graphics/data viz (2) AI generation (Sora, Runway, Kling) — optimal for realistic/cinematic (3) Traditional editing (Premiere, DaVinci) — handles everything. Remotion excels at 100% reproducibility, full customization, and bulk auto-generation
Remotion Troubleshooting — Common Errors and Solutions
Collection of real-world errors: slow rendering, delayRender timeout, useState infinite loop
Five common Remotion errors and solutions: (1) Slow rendering → increase concurrency/use Lambda (2) delayRender timeout → missing continueRender (3) useState infinite loop → use useCurrentFrame + interpolate (4) CSS animation not working → use Remotion API (5) Lambda flickering → adjust concurrency
Claude Code × Remotion — Prompt Techniques for AI Video Code Generation
Accelerate video development with effective prompt structure and 5 practical prompt examples
Prompt techniques for efficiently generating Remotion video code with Claude Code. Four elements to include (video type, visual elements, animation, duration) and 5 practical examples: logo animation, data visualization, typewriter text, transitions, particle effects