head to head · open source
Prometheus vs dejavu
Prometheus has 66,906 GitHub stars, 10,969 forks, 890 open issues and last shipped yesterday. dejavu has 8,467 stars, 511 forks, 69 open issues and last shipped 4 months ago. Prometheus leads on adoption by 690% (66,906 vs 8,467 stars). Prometheus is written in Go under Apache-2.0; dejavu is written in JavaScript under MIT. Prometheus has attracted 16% as many forks as stars, dejavu 6%. 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 | dejavu | |
|---|---|---|
| GitHub stars | ★ 67K | ★ 8.5K |
| License | Apache-2.0 | MIT |
| Written in | Go | JavaScript |
| Last push | 2026-11-02 | 2026-07-02 |
| Forks | ⑂ 11K | ⑂ 511 |
| 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 dejavu if
- You want the dejavu feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and dejavu 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 dejavu
dejavu: The Web UI for OpenSearch and Elasticsearch 1. Dejavu: Intro 2. Features a. Easily Connect to Indices b. Visual Filters c. Modern UI Elements d. Import JSON or CSV Data e. Build search UIs 3. Comparison 4. Roadmap 5. Build Locally / Contributing 6. Get Dejavu a. Docker Installation b. Hosted Alternatives 1. Dejavu Intro Dejavu is a modern web UI for OpenSearch and Elasticsearch. It was designed with the goal of providing a seamless user experience, featuring no page reloads, infinite scroll, filtered views, real time updates, and a search UI builder. With 100% client side rendering, Dejavu can easily be…
read the full dejavu overview →
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Frequently asked questions
Is Prometheus or dejavu more popular?
Prometheus has 66,906 GitHub stars and dejavu has 8,467. Prometheus has the larger community by that measure.
Are Prometheus and dejavu free?
Both are open source. Prometheus is licensed under Apache-2.0 and dejavu under MIT. Neither carries a licence fee.
What is the difference between Prometheus and dejavu?
Prometheus is written in Go and dejavu in JavaScript. 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 dejavu?
Choose Prometheus if you want the larger community (66,906 stars) or its Apache-2.0 licence terms. Choose dejavu if its feature set, stack or MIT licence fits better. Both are self-hostable.