head to head · open source
Prometheus vs FlyEnv
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. FlyEnv has 3,327 stars, 390 forks, 37 open issues and last shipped yesterday. Prometheus leads on adoption by 1,911% (66,906 vs 3,327 stars). Prometheus is written in Go under Apache-2.0; FlyEnv is written in TypeScript under BSD-3-Clause. Prometheus has attracted 16% as many forks as stars, FlyEnv 12%. 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 | FlyEnv | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 3.3K |
| License | Apache-2.0 | BSD-3-Clause |
| Written in | Go | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 11K | ⑂ 390 |
| 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 FlyEnv if
- You want the FlyEnv feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches TypeScript
- You evaluated both and FlyEnv 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 FlyEnv
FlyEnv Run Your Complete Local Development Stack Natively FlyEnv is a native local development environment for Windows, macOS, and Linux. A modern alternative to XAMPP, MAMP, Laragon, and Laravel Herd — built for more than PHP. Manage PHP, Node.js, Python, Java, Go, databases, web servers, local sites, HTTPS, AI coding tools, and MCP from one desktop app. Download · Demos · Quick Start · Website Why FlyEnv? FlyEnv brings the local development tools you normally manage separately into one native desktop workspace. No container setup required for everyday local development — run installed services directly on your…
read the full FlyEnv overview →
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Frequently asked questions
Is Prometheus or FlyEnv more popular?
Prometheus has 66,906 GitHub stars and FlyEnv has 3,327. Prometheus has the larger community by that measure.
Are Prometheus and FlyEnv free?
Both are open source. Prometheus is licensed under Apache-2.0 and FlyEnv under BSD-3-Clause. Neither carries a licence fee.
What is the difference between Prometheus and FlyEnv?
Prometheus is written in Go and FlyEnv 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 FlyEnv?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose FlyEnv if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.