Object storage and file storage both keep your data, but they organise and access it in fundamentally different ways — and choosing the wrong one leads to awkward workarounds later. Here’s a clear comparison so you can match the storage type to the workload.
How each one works
File storage organises data in a hierarchy of folders and files, exactly like your laptop or a shared network drive. Applications reach it through a filesystem path (/data/reports/q3.pdf) and standard file operations — open, read, write, seek. It’s intuitive and universally supported.
Object storage keeps data as objects — a blob plus metadata plus a unique key — in a flat namespace called a bucket, reached over an HTTP API rather than a filesystem. There are no folders (though key prefixes can imitate them), and you get or put whole objects rather than editing them in place.
The key differences
| File storage | Object storage | |
|---|---|---|
| Structure | Hierarchical folders | Flat namespace (buckets + keys) |
| Access | Filesystem paths | HTTP / S3 API |
| Editing | In-place, partial writes | Write/replace whole objects |
| Scale | Limited by the filesystem | Effectively unlimited |
| Best for | Shared files, apps expecting a filesystem | Backups, media, data lakes, cloud-native apps |
When to use file storage
- Applications that expect a real filesystem (many legacy and off-the-shelf apps).
- Shared drives where people open and edit documents in place.
- Workloads that need low-latency, partial reads and writes to files.
When to use object storage
- Backups and archives — cheap, durable, write-once.
- Media and static assets served over HTTP.
- Data lakes and analytics where tools read blobs in place.
- Cloud-native and web apps that store uploads via an API.
- Anything that needs to scale without capacity planning.
The practical rule
If your application expects to open and edit files on a mounted filesystem, use file storage. If your data is written once and read (or served) many times — and especially if it needs to scale big and cheap — use object storage. Many architectures use both: a filesystem for the working set, object storage for everything durable and large.
For the object-storage side, an S3-compatible provider gives you the API every modern tool speaks. Internetport’s object storage is S3-compatible, GDPR-compliant and egress-free, with a free 10 GB tier to test your workload. If you’re weighing the third option, see our note on block vs object storage, or the full object storage use cases.