head to head · open source
Prometheus vs olric
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. olric has 3,503 stars, 155 forks, 22 open issues and last shipped 3 months ago. Prometheus leads on adoption by 1,810% (66,906 vs 3,503 stars). Prometheus is written in Go under Apache-2.0; olric is written in Go under Apache-2.0. Prometheus has attracted 16% as many forks as stars, olric 4%. 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 | olric | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 3.5K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Go |
| Last push | 2026-11-02 | 2026-08-20 |
| Forks | ⑂ 11K | ⑂ 155 |
| 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 olric if
- You want the olric 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 olric 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 olric
Olric Distributed In Memory Cache & Key/Value Store Olric provides a simple way to create a fast, scalable, and shared pool of RAM across a cluster of machines. It's a distributed, in memory key/value store and cache, written entirely in Go and designed specifically for distributed environments. Flexible Deployment: Embedded Go Library: Integrate Olric directly into your Go applications. Standalone Service: Run Olric as a language independent service. Key Features: Effortless Scalability: Designed to handle hundreds of members and thousands of clients. New nodes auto discover the cluster and linearly increase…
read the full olric overview →
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Frequently asked questions
Is Prometheus or olric more popular?
Prometheus has 66,906 GitHub stars and olric has 3,503. Prometheus has the larger community by that measure.
Are Prometheus and olric free?
Both are open source. Prometheus is licensed under Apache-2.0 and olric under Apache-2.0. Neither carries a licence fee.
What is the difference between Prometheus and olric?
Prometheus is written in Go and olric 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, Prometheus or olric?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose olric if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.