Alibaba Cloud OSS

Free storage / trial: Standard LRS storage lists the first 0-5 GB as free; new-user OSS trials may add temporary quota.
Separate limits: Traffic, requests, storage class, region, and data retrieval are billed separately once free allowances are exceeded.
Billing trigger: Requires an Alibaba Cloud billing account; usage above free quota is pay-as-you-go.
Best fit: Testing S3-compatible workflows in Alibaba regions with a small always-free storage allowance.

Cost hygiene:Use Standard LRS for tiny buckets, set billing alerts, and avoid cross-region or public egress tests unless needed.

Checked 2026-05-13: Alibaba Cloud OSS pricing

Alibaba Cloud OSS is Alibaba's object storage platform with S3-compatible access patterns. AeroFTP includes an Alibaba Cloud OSS preset that maps the regional endpoint format automatically.

Alibaba's public pricing currently advertises a 5 GB free tier in mainland China regions. Availability and signup terms can differ by market, so verify the offer that applies to your account before relying on it operationally.

Why Use AeroFTP with Alibaba Cloud OSS

direct desktop access to OSS buckets from AeroFTP
region-aware endpoint generation for China, Asia-Pacific, Europe, and US regions
reusable saved profiles for backup and transfer workflows
one client for OSS, AWS S3, Tencent COS, Oracle Cloud, and other S3-compatible providers

What You Need

your AccessKey ID
your AccessKey Secret
your OSS bucket name
the OSS region used by that bucket

Endpoint Format

Alibaba Cloud OSS uses the following endpoint pattern:

text

https://oss-{region}.aliyuncs.com

Examples include:

https://oss-cn-hangzhou.aliyuncs.com
https://oss-ap-southeast-1.aliyuncs.com
https://oss-eu-central-1.aliyuncs.com

How to Connect

Open AeroFTP.
Select Alibaba Cloud OSS from the S3 provider presets.
Enter your AccessKey ID.
Enter your AccessKey Secret.
Enter your bucket name.
Select the region where the bucket is hosted.
Confirm the auto-generated OSS endpoint.
Connect and save the profile.

Recommended Defaults

use the Alibaba Cloud OSS preset instead of generic S3
keep virtual-hosted-style defaults unless your environment requires otherwise
make sure the bucket region and selected endpoint match exactly

Common Issues

Problem	Cause	Solution
Access denied	Wrong AccessKey permissions	Check RAM permissions for OSS bucket access
Signature mismatch	Wrong region selected	Re-select the exact region used by the bucket
Bucket not found	Bucket name or region mismatch	Verify both values in the OSS console
Connection works but listing fails	Credentials lack list permissions	Ensure the key can read bucket metadata and list objects

Alibaba Cloud OSS ​