head to head · open source
Prometheus vs Memgraph
Prometheus has 66,106 GitHub stars, 10,840 forks, 890 open issues and last shipped yesterday. Memgraph has 4,566 stars, 283 forks, 813 open issues and last shipped yesterday. Prometheus leads on adoption by 1,348% (66,106 vs 4,566 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%. Memgraph 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.
← all 8884 open source comparisons
Side by side
| Prometheus | Memgraph | |
|---|---|---|
| GitHub stars | ★ 66K | ★ 4.6K |
| License | Apache-2.0 | Custom / other |
| Written in | Go | C++ |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 11K | ⑂ 283 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Prometheus if
- You weight community size — 66K 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 is an open source monitoring system and time series database, part of the Cloud Native Computing Foundation ecosystem. It collects metrics from configured targets at defined intervals, evaluates alerting rules, and visualizes results. Designed for reliability in dynamic environments, it operates without reliance on distributed storage, ensuring each server node functions independently.
read the full Prometheus overview →
About Memgraph
Memgraph is an open source, in memory graph database written in C and C++ for real time graph analytics, GraphRAG, AI memory, and agentic workflows. It is ACID compliant and highly available. It lives in the graph database and AI infrastructure ecosystem and uses a Cypher compatible query layer familiar from Neo4j environments.
read the full Memgraph overview →
More in Infrastructure & Operations
Related comparisons
More Databases projects
Compare either of these against the rest of the Databases field.
Frequently asked questions
Is Prometheus or Memgraph more popular?
Prometheus has 66,106 GitHub stars and Memgraph has 4,566. 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 (66,106 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.