head to head · open source
Prometheus vs Memgraph
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. Memgraph has 4,640 stars, 296 forks, 813 open issues and last shipped yesterday. Prometheus leads on adoption by 1,342% (66,906 vs 4,640 stars). Prometheus is written in Go under Apache-2.0; Memgraph is written in C++ under a custom or non-standard licence. Prometheus has attracted 16% as many forks as stars, Memgraph 6%. Prometheus was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Prometheus | Memgraph | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 4.6K |
| License | Apache-2.0 | Custom / other |
| Written in | Go | C++ |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 11K | ⑂ 296 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prometheus if
- You weight community size — 67K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Memgraph if
- You want the Memgraph feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches C++
- You evaluated both and Memgraph fits your workflow better
About Prometheus
Prometheus Visit prometheus.io for the full documentation, examples and guides. [ ][quay] [ ][hub] Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are observed. The features that distinguish Prometheus from other metrics and monitoring systems are: A multi dimensional data model (time series defined by metric name and set of key/value dimensions) PromQL, a powerful and flexible query language to…
read the full Prometheus overview →
About Memgraph
:clipboard: Description Memgraph is a high performance, in memory graph database that powers real time AI context and graph analytics. Built in C/C++, it serves as the graph engine for GraphRAG pipelines, AI memory systems, and agentic workflows — delivering sub millisecond multi hop traversals for any system that needs structured, connected context alongside semantic vector or text search. Memgraph provides both in a single query layer: built in text and vector indexes for similarity search combined with full graph traversal, so retrieval pipelines can run as a single atomic database operation instead of being…
read the full Memgraph overview →
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Frequently asked questions
Is Prometheus or Memgraph more popular?
Prometheus has 66,906 GitHub stars and Memgraph has 4,640. Prometheus has the larger community by that measure.
Are Prometheus and Memgraph free?
Both are open source. Prometheus is licensed under Apache-2.0, and Memgraph has no licence declared in this registry. Both are free to self-host.
What is the difference between Prometheus and Memgraph?
Prometheus is written in Go and Memgraph in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Prometheus or Memgraph?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose Memgraph if its feature set, stack or Custom / other licence fits better. Both are self-hostable.