IaaS

4EVERLAND

Compatible with AWS S3 - APIs, interface operations, CLI, and other upload methods, upload and store files from the IPFS and Arweave networks in a safe, convenient, and efficient manner. Registered users can get 6 GB of IPFS storage and 300MB of Arweave storage for free. Any Arweave file uploads smaller than 150 KB are free.

https://www.4everland.org/

backblaze.com

Backblaze B2 cloud storage. Free 10 GB (Amazon S3-like) object storage for unlimited time

https://www.backblaze.com/b2/

filebase.com

S3 Compatible Object Storage Powered by Blockchain. 5 GB free storage for an unlimited duration.

https://filebase.com/

Modal

AI-driven IaaS with generous compute, storage; offers $30 (might be limited to $5 on certain accounts) of free monthly credits

https://modal.com