IIJ Object Storage Service is a cloud-based storage platform operated by Internet Initiative Japan (IIJ), one of Japan’s leading internet backbone and cloud service providers. It provides reliable, scalable storage for backups, application data, and other unstructured files.

The service offers an S3-compatible REST API, making it easy to integrate with tools like aws-cli, rclone, and software libraries built for Amazon S3.

Pricing is based on two components:

• Storage usage: charged per GB per month
• Bandwidth allocation: flat-rate pricing based on network speed (e.g. 100 Mbps), rather than per-GB egress

With predictable costs, domestic infrastructure, and S3 compatibility, IIJ Object Storage is a strong choice for businesses in Japan seeking dependable cloud storage without variable transfer or API usage fees.