ffmpeg.js

Use FFmpeg directly in your browser without any backend services!!

Transcode

Source Code

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ffmpeg.js provides simple to use APIs, to transcode a video you only need few lines of code:

const fs = require('fs');
const { createWorker } = require('@ffmpeg/ffmpeg');

const worker = createWorker();

(async () => {
  await worker.load();
  await worker.write('test.avi', './test.avi');
  await worker.transcode('test.avi', 'test.mp4');
  const { data } = await worker.read('test.mp4');
  fs.writeFileSync('./test.mp4', data);
})();

Installation

$ npm install @ffmpeg/ffmpeg

Documentation

• API

Tutorials

Learn how to build ffmpeg.js from stories:

• Part.1 Preparation
• Part.2 Compile with Emscripten
• Part.3 ffmpeg.js v0.1.0 — Transcoding avi to mp4
• Part.4 ffmpeg.js v0.2 — Web Worker and Libx264