head to head · open source
Prometheus vs pikiwidb
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. pikiwidb has 6,137 stars, 1,170 forks, 77 open issues and last shipped 18 days ago. Prometheus leads on adoption by 990% (66,906 vs 6,137 stars). Prometheus is written in Go under Apache-2.0; pikiwidb is written in C++ under BSD-3-Clause. Prometheus has attracted 16% as many forks as stars, pikiwidb 19%. 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 | pikiwidb | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 6.1K |
| License | Apache-2.0 | BSD-3-Clause |
| Written in | Go | C++ |
| Last push | 2026-11-02 | 2026-10-16 |
| Forks | ⑂ 11K | ⑂ 1.2K |
| 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 pikiwidb if
- You want the pikiwidb feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches C++
- You evaluated both and pikiwidb 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 pikiwidb
Introduction中文 PikiwiDB is a high performance, large capacity, multi tenant, data persistent elastic KV data storage system using RocksDB as the storage engine. It is fully compatible with the Redis protocol and supports its commonly used data structures, such as string/hash/list/zset/set/geo/hyperloglog/pubsub/bitmap/stream, etc. Redis Interface. When Redis's in memory usage exceeds 16GiB, it faces problems such as limited memory capacity, single threaded blocking, long startup recovery time, high memory hardware costs, easily filled buffers, and high switching costs when one master and multiple replicas fail…
read the full pikiwidb overview →
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Frequently asked questions
Is Prometheus or pikiwidb more popular?
Prometheus has 66,906 GitHub stars and pikiwidb has 6,137. Prometheus has the larger community by that measure.
Are Prometheus and pikiwidb free?
Both are open source. Prometheus is licensed under Apache-2.0 and pikiwidb under BSD-3-Clause. Neither carries a licence fee.
What is the difference between Prometheus and pikiwidb?
Prometheus is written in Go and pikiwidb 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 pikiwidb?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose pikiwidb if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.