In the S3 console, select the file, go to -> Edit metadata , and manually type video/mp4 in the Value field. Programmatic Upload (Node.js Example) You can use the AWS SDK to automate this process: javascript
await s3Client.send(new PutObjectCommand({ Bucket: 'your-bucket-name', Key: 'video.mp4', ContentType: 'video/mp4', // Required for browser playback Body: fileStream })); Use code with caution. Tips for Best Performance In the S3 console, select the file, go
To or upload an MP4 file to Amazon S3, you can use the AWS Management Console, CLI, or an SDK. Basic Upload Steps In the S3 console