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openGemini

Free#19 of 36 in Time-Series Databases

openGemini: A flexible open-source choice for InfluxQL and PromQL deployments. Ranked #19 of 36 in Time-Series Databases by our editors (5.7/10); pricing: Open source; best for influxQL or PromQL open-source deployments.

5.7/10Editor score
openGemini5.7 Visit openGemini

At a glance

  • Editor score
    5.7 / 10
  • Pricing
    Open source
  • Best for
    InfluxQL or PromQL open-source deployments
  • Paid from
    None
  • Deployment
    Self_hosted
  • Facts checked
    22 Sep 2026
openGemini screenshot
  • Where it wins

    • Supports standalone and clustered deployments
    • Offers independently scalable distributed MPP components
    • Works with InfluxQL, PromQL, Prometheus, and InfluxDB APIs
  • Where it doesn't

    • Self-hosted deployment requires infrastructure management
    • Its feature set centers on time-series workloads
    • Established since 2022, it has a shorter project history

Our verdict on openGemini

openGemini is an open-source, cloud-native distributed time-series database for observability data, including metrics, logs, and traces. It supports Linux, macOS, Windows, Docker, Kubernetes, virtual machines, and physical machines, with both standalone and clustered deployment options. Teams that need control over their deployment environment and compatibility with InfluxDB or Prometheus tooling are the clearest fit. Its free open-source model also suits organizations building their own time-series stack rather than selecting a managed service.

The standout capability is its distributed MPP architecture, where components can be scaled independently. That design is paired with configurable retention policies and shard durations for managing time-series data over time. Query support covers both InfluxQL and PromQL, while ingestion includes InfluxDB line protocol, Apache Arrow Flight, and Prometheus remote read/write. This gives openGemini a broad compatibility layer for observability pipelines, especially when existing systems already use Prometheus, Grafana, Kubernetes, or the InfluxDB SDK.

openGemini is strongest for teams that want deployment flexibility and open-source control without giving up familiar query and ingestion interfaces. Its breadth across protocols and deployment models makes it suitable for both smaller standalone installations and clustered environments with independently scalable components. The trade-off is that self-hosted software places infrastructure, operations, and ongoing administration with the adopting team. Organizations seeking a hosted experience or a longer-established project may prefer an alternative; teams prioritizing InfluxQL or PromQL compatibility and direct control should consider openGemini.

openGemini pricing

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

openGemini fact sheet

Free planNot verified
Paid fromNone
DeploymentSelf_hosted
SQL supportYes
Retention policiesYes
Horizontal scalingYes
Query languagesInfluxQL, PromQL, GeminiQL
Ingestion methodsInfluxDB Line Protocol, Apache Arrow Flight, Prometheus remote_write
DeploymentSelf-hosted
PlatformsWindows, macOS, Linux
SupportCommunity, Docs
Built forSmall business, Mid-market, Enterprise (editorial estimate)
Integrations2 integrations: Prometheus, Grafana
PricingOpen source
Websiteopengemini.org
Facts checked22 Sep 2026

openGemini integrations

openGemini lists 2 integrations on its own site.

  • Prometheus
  • Grafana

Alternatives to openGemini

See all openGemini alternatives →

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Featured on iTechGuides

Featured on iTechGuides — openGemini 5.7/10

openGemini is listed in our Time-Series Databases directory. Add the badge to your site — it links back to this page.

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Guides on Time-Series databases

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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