
Google Cloud Storage
Amazon S3
Azure Blob Storage
DigitalOcean Spaces
IBM Cloud Object Storage
Cloudian
Zadara Storage
Minio is an open-source minimal cloud storage server.

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Which is more popular?
Based on our record, Minio seems to be more popular. It has been mentioned 170 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | min.io | opalstack.com |
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| Company | Startup from the United States | — |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Minio is recommended for developers, IT teams, and organizations that need a reliable object storage solution that can scale with their data needs. It is also a good choice for businesses looking to reduce costs associated with cloud storage services while maintaining high availability and performance.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Minio and Opalstack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Maintaining consistency between multiple databases, like MinIO and InfluxDB, adds a layer of complexity. In our setup, MinIO, used for blob storage, is linked to data points in InfluxDB via its filename. Any...
We often use blob storage like S3, if we need to store data of different formats and sizes somewhere in the cloud or in our internal storage. Minio is an S3 compatible storage which you can run on your private cloud,...
MinIO supports many use cases for diverse settings and has been cloud-native from its inception. MinIO’s software-defined suite operates in public and private clouds smoothly at the edge and positions itself as a...
We have no reviews of Opalstack yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I need to set up MinIO like S3, since the app needs to think it's talking to S3. I downloaded MinIO from their site and set up the environment variables:. - Source: dev.to / 4 months ago
We migrated to Parseable, self-hosted on Kubernetes with Minio for S3-compatible storage, all running on bare-metal. The product still feels early, but the team is responsive and ships fixes fast when something breaks. Big shoutout to... - Source: dev.to / 8 months ago
There are also other object storage services that provide more comprehensive CAS support such as ABS, GCS, MinIO, R2, and Tigris. - Source: dev.to / about 1 year ago
Tracking Opalstack since Sep 2023.
When comparing Minio and Opalstack, you can also consider the following products.

Google Cloud Storage offers developers and IT organizations durable and highly available object storage.
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Amazon S3 is an object storage where users can store data from their business on a safe, cloud-based platform. Amazon S3 operates in 54 availability zones within 18 graphic regions and 1 local region.
Compare Amazon S3 to Minio or Opalstack:

Use Azure Blob Storage to store all kinds of files. Azure hot, cool, and archive storage is reliable cloud object storage for unstructured data
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The simplest way to cost effectively store, serve, backup, and archive a virtually infinite amount of media, content, images, and static files for your apps.
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IBM Cloud Object Storage is a platform that offers cost-effective and scalable cloud storage for unstructured data.
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Exabyte-scale storage for your capacity-intensive workloads. Files plus S3-compatible storage. On-prem, hybrid cloud, and multi-cloud. Learn why leading enterprises worldwide trust Cloudian.
Compare Cloudian to Minio or Opalstack: