head to head · open source
Apache SkyWalking vs openGemini
Apache SkyWalking has 24,988 GitHub stars, 6,632 forks, 41 open issues and last shipped 2 days ago. openGemini has 1,178 stars, 176 forks, 117 open issues and last shipped yesterday. Apache SkyWalking leads on adoption by 2,021% (24,988 vs 1,178 stars). Apache SkyWalking is written in Java under Apache-2.0; openGemini is written in Go under Apache-2.0. Apache SkyWalking has attracted 27% as many forks as stars, openGemini 15%. openGemini was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (observability), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Apache SkyWalking | openGemini | |
|---|---|---|
| GitHub stars | ★ 25K | ★ 1.2K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Go |
| Last push | 2026-11-03 | 2026-11-04 |
| Forks | ⑂ 6.6K | ⑂ 176 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Apache SkyWalking if
- You weight community size — 25K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick openGemini if
- You want the openGemini feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and openGemini fits your workflow better
About Apache SkyWalking
Apache SkyWalking ========== SkyWalking : an APM (Application Performance Monitoring) system, especially designed for microservices, cloud native and container based architectures. Abstract SkyWalking is an open source APM system that provides monitoring, tracing and diagnosing capabilities for distributed systems in Cloud Native architectures. Distributed Tracing End to end distributed tracing. Service topology analysis, service centric observability and APIs dashboards. Agents for your stack Java, .Net Core, PHP, NodeJS, Golang, LUA, Rust, C++, Client JavaScript and Python agents with active development and…
read the full Apache SkyWalking overview →
About openGemini
README English 简体中文 Official Website Docs Contribution Guide RoadMap Performance About openGemini openGemini is a cloud native distributed time series database, focusing on the storage and analysis of massive telemetry data. If you have used openGemini, please let us know and click submit Usage Information openGemini is an sandbox project of the Cloud Native Computing Foundation (CNCF). Please consider joining the CNCF if you are an organization that wants to take an active role in supporting the growth and evolution of the cloud native ecosystem. Why openGemini Compared with other time series database…
read the full openGemini overview →
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Frequently asked questions
Is Apache SkyWalking or openGemini more popular?
Apache SkyWalking has 24,988 GitHub stars and openGemini has 1,178. Apache SkyWalking has the larger community by that measure.
Are Apache SkyWalking and openGemini free?
Both are open source. Apache SkyWalking is licensed under Apache-2.0 and openGemini under Apache-2.0. Neither carries a licence fee.
What is the difference between Apache SkyWalking and openGemini?
Apache SkyWalking is written in Java and openGemini in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Apache SkyWalking or openGemini?
Choose Apache SkyWalking if you want the larger community (24,988 stars) or its Apache-2.0 licence terms. Choose openGemini if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.