Check out part 2 of our "Building a web-based screen recorder" blog series, where we discuss "Efficient uploading and persistent storage of neetoRecord videos using AWS S3".
Read more: https://www.bigbinary.com/blog/persistant-storage-for-recordings-in-s3-loom-alternative-part-2
You can try neetoRecord: https://www.neeto.com/neetorecord