head to head · open source
Prometheus vs Conar
Prometheus has 66,106 GitHub stars, 10,840 forks, 890 open issues and last shipped yesterday. Conar has 1,445 stars, 105 forks, 46 open issues and last shipped 2 days ago. Prometheus leads on adoption by 4,475% (66,106 vs 1,445 stars). Prometheus is written in Go under Apache-2.0; Conar is written in TypeScript under AGPL-3.0. Prometheus has attracted 16% as many forks as stars, Conar 7%. 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 | Conar | |
|---|---|---|
| GitHub stars | ★ 66K | ★ 1.4K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 11K | ⑂ 105 |
| 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 Conar if
- You want the Conar feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and Conar 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 Conar
Conar is an AI powered open source database management project built for PostgreSQL, MySQL, MSSQL, and Clickhouse, with support for other databases indicated as coming in the future. It lives in the TypeScript and AGPL 3.0 database management ecosystem, categorized under Infrastructure & Operations / Databases. It addresses the friction of working with multiple database systems while needing help writing and optimizing SQL queries. The README describes storing connections securely in the project’s cloud and asking AI to assist with SQL. It also describes encrypted connection strings and password protection, which…
read the full Conar overview →
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Frequently asked questions
Is Prometheus or Conar more popular?
Prometheus has 66,106 GitHub stars and Conar has 1,445. Prometheus has the larger community by that measure.
Are Prometheus and Conar free?
Both are open source. Prometheus is licensed under Apache-2.0 and Conar under AGPL-3.0. Neither carries a licence fee.
What is the difference between Prometheus and Conar?
Prometheus is written in Go and Conar in TypeScript. 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 Conar?
Choose Prometheus if you want the larger community (66,106 stars) or its Apache-2.0 licence terms. Choose Conar if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.