Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience real numbers from our own analytics — open to see them
–Visitors
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · counted by iTechGuides's own first-party analytics, bots removed, every figure rounded down · how we count

Less3

Free#102 of 150 in Object Storage Services

Less3: A practical choice for teams running S3 storage on their own infrastructure. Ranked #102 of 150 in Object Storage Services by our editors (6.0/10); pricing: Open source; best for open-source self-hosted S3 deployments.

6.0/10Editor score
Visit Less3
Less36.0 Visit Less3

At a glance

  • Editor score
    6.0 / 10
  • Pricing
    Open source
  • Best for
    Open-source self-hosted S3 deployments
  • Paid from
    None
  • S3 compatibility
    Yes
  • Facts checked
    22 Sep 2026
Less3 screenshot

  • Where it wins

    • S3 compatibility works with AWS SDK, AWS CLI, and MinIO Client
    • Supports single-node and multi-node clustered deployments
    • Includes versioning, multipart uploads, permissions, and monitoring

  • Where it doesn't

    • Self-hosted operation puts infrastructure management on your team
    • Clustered deployments require PostgreSQL and shared storage
    • Community and documentation are the listed support channels

Our verdict on Less3

Less3 is an open-source S3-compatible object storage server for developers and organizations that want to run storage on laptops, servers, private infrastructure, or controlled environments. It offers web, API, and self-hosted access, with a standalone single-node deployment using SQLite and local disk or a multi-node clustered deployment using PostgreSQL and shared storage. Bucket and object management are available through a web dashboard, while administrative interfaces cover users, tenants, credentials, roles, permissions, tags, and ACLs. The MIT license makes Less3 a fit for teams that want an inspectable, self-managed storage layer rather than a hosted service.

Compatibility is a central strength. Less3 supports the S3-compatible object storage API, object versioning, and multipart uploads, and it works with AWS SDK, AWS CLI, MinIO Client, CloudBerry Explorer for S3, S3 Browser, and REST integrations. That ecosystem can reduce friction when existing applications already target S3 interfaces. Prometheus metrics and Grafana dashboards add an operational visibility path, while the web dashboard provides a direct way to manage buckets and objects. Teams should still account for the infrastructure choices required by the deployment model, especially PostgreSQL and shared storage for clustered installations.

Less3 suits solo developers, small teams, mid-market organizations, and enterprises that want control over deployment and storage location. It is particularly appropriate for private infrastructure, development environments, and workloads that benefit from S3 client compatibility without adopting a hosted platform. The trade-off is operational ownership: teams must run the service and its supporting components themselves, with community and documentation as the listed support channels. Organizations seeking a narrowly managed storage service, or requiring a different operational model, should consider alternatives designed around hosted administration. Less3 is the stronger fit when self-hosting and open-source control are primary requirements.

Less3 pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.
See plans on less3.ai

Less3 fact sheet

Free planNot verified
Paid fromNone
S3 compatibilityYes
Max object sizeNot verified
Object versioningYes
Lifecycle rulesNot verified
Object immutabilityNot verified
Replication scopeNot verified
DeploymentSelf-hosted
PlatformsWeb
SupportCommunity, Docs
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
Integrations6 integrations: AWS SDK, AWS CLI, MinIO Client, CloudBerry Explorer for S3, S3 Browser, REST
PricingOpen source
Websiteless3.ai
Facts checked22 Sep 2026

Less3 integrations

Less3 lists 6 integrations on its own site.

  • AWS SDK
  • AWS CLI
  • MinIO Client
  • CloudBerry Explorer for S3
  • S3 Browser
  • REST

Alternatives to Less3

See all Less3 alternatives →

Used Less3? Be the first to review it

The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Less3 for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

Write a reviewTwo minutes · verified accounts only · read by an editor before it appears

Reviews come only from verified accounts. Sign in or create an account first — your e-mail is never shown.

Your rating

0 characters · at least 80, up to 3,000

Posted from your verified account. Reviews appear after an editor reads them, usually within two working days.

Featured on iTechGuides

Featured on iTechGuides — Less3 6.0/10

Less3 is listed in our Object Storage Services directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/less3/"><img src="https://www.itechguides.com/best/badge/less3.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Guides on object storage services

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Last updated · How we research and update