How to archive emails in Gmail to save space?

I am running out of G-mail storage and want to archive my emails. Therefore, I need a solution to compress my archive files which will help me to save space in G-mail.

To save space try this method
Delete some unnecessary files which will save some space or buy cloud storage.

To archive you mails
There are three ways to archive your file.

  1. Manually
  2. Online tool
  3. Offline tool