HStorage is a Japan-based cloud storage platform offering free uploads up to 100GB, direct-link sharing, virus scanning, encryption, and a Business plan with…
HStorage (エイチストレージ) is a cloud storage and file-uploader service operated by the Japanese company HCloud Resources GK (合同会社 HCloud Resources). It targets both individual users and businesses that need to store, manage, and share files quickly and securely. The service supports uploads of up to 100GB per transfer, and the vendor states there is no metered billing based on storage capacity — users can use a generous free tier or upgrade to paid subscription plans for additional convenience.
Core file-management features include folder and collection organization, direct-link sharing versus expiring share links, download-count limits, scheduled/automatic deletion, ZIP content preview, and video file conversion. Security features include automatic real-time virus scanning of uploaded files, file encryption, password protection, IP restrictions, and role-based access controls with operation logs. On its Business plan, HStorage offers WORM (Write Once Read Many) evidence preservation using Object Lock and independent timestamp tokens (RFC 3161–compatible) so that shared business files retain a tamper-evident audit trail; the vendor is explicit that this is its own timestamping mechanism rather than a third-party-certified time-stamping authority.
HStorage also provides developer-facing connectivity: FTP/SFTP/WebDAV access and, as of a 2026 update noted on its official blog, an S3-compatible API. Later blog posts describe an AI-powered file search feature and guidance for connecting the service to workflow-automation tools. All data is stored in data centers located in Japan, which the vendor says are monitored 24/7. According to the site, HStorage is used by 300+ companies, receives roughly 200,000 monthly visitors, and delivers more than 35 million files (20TB+) per month, with no reported security incidents to date.