head to head · open source
Prometheus vs flyway
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. flyway has 10,183 stars, 1,634 forks, 258 open issues and last shipped 4 days ago. Prometheus leads on adoption by 557% (66,906 vs 10,183 stars). Prometheus is written in Go under Apache-2.0; flyway is written in Java under Apache-2.0. Prometheus has attracted 16% as many forks as stars, flyway 16%. 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 | flyway | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 10K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-11-02 | 2026-10-30 |
| Forks | ⑂ 11K | ⑂ 1.6K |
| 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 flyway if
- You want the flyway feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and flyway 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 flyway
Flyway by Redgate Database Migrations Made Easy. Evolve your database schema easily and reliably across all your instances. Simple, focused and powerful. Works on Windows, macOS, Linux, Docker and Java Supported build tools Maven and Gradle Supported databases Supports 50+ DBMS, including: Oracle, SQL Server, MySQL, PostgreSQL, MariaDB, MongoDB, Snowflake, Google BigQuery, Amazon Redshift, Azure Synapse, SAP HANA (including SAP HANA Cloud), SQLite, IBM DB2 LUW, Amazon Aurora MySQL, Amazon Aurora PostgreSQL, Google Cloud Spanner, SingleStoreDB, CockroachDB, TimescaleDB, Babelfish, Cassandra, Couchbase, Fabric…
read the full flyway overview →
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Frequently asked questions
Is Prometheus or flyway more popular?
Prometheus has 66,906 GitHub stars and flyway has 10,183. Prometheus has the larger community by that measure.
Are Prometheus and flyway free?
Both are open source. Prometheus is licensed under Apache-2.0 and flyway under Apache-2.0. Neither carries a licence fee.
What is the difference between Prometheus and flyway?
Prometheus is written in Go and flyway in Java. 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 flyway?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose flyway if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.