Nominatim
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Comparison · DevOps
Froxlor vs Prometheus
A side-by-side editorial comparison of Froxlor and Prometheus — release velocity, themes, recent moves, and the top alternatives to consider.
Froxlor vs Prometheus: at a glance
What is Froxlor?
Froxlor's bugfix releases now describe their changes, and most are security fixes.
Froxlor is an open-source server administration panel. After two bugfix tags with nothing but a compare link, 2.3.14 to 2.3.16 carry real notes: 2.3.14 has four security fixes (theme allowlisting, control characters in FTP members, permission checks on MySQL server and cron reads, admin-scoped mail templates), 2.3.15 fixes database, nginx and SSH-key issues, and 2.3.16 adds PHP 8.5 compatibility and honours a hidden-traffic setting in the API.
What is Prometheus?
Prometheus 3.16 turns query cost into a setting while its smoothed selectors go stable
Prometheus is working toward 3.16, with rc.2 dated 27 October. The candidate makes Smoothed and Anchored vector selectors stable and always-on, adds experimental query cost estimation with configurable execution limits behind --enable-feature=query-cost, and brings metadata-wal-records to Agent mode. The patch tracks are moving separately: 3.15.1 and 3.13.5 both distrust two root CAs after the eMudhra key compromise and rebuild on patched Go releases.
Froxlor vs Prometheus: editorial side-by-side
Froxlor
5.0DEVOPS
Froxlor's bugfix releases now describe their changes, and most are security fixes.
◆ Current state
Froxlor is an open-source server administration panel. After two bugfix tags with nothing but a compare link, 2.3.14 to 2.3.16 carry real notes: 2.3.14 has four security fixes (theme allowlisting, control characters in FTP members, permission checks on MySQL server and cron reads, admin-scoped mail templates), 2.3.15 fixes database, nginx and SSH-key issues, and 2.3.16 adds PHP 8.5 compatibility and honours a hidden-traffic setting in the API.
◆ Where it's heading
Security fixes now arrive in the regular bugfix releases rather than only in separate security releases, and the notes have returned. The issues are mostly authorization scoping inside the admin and customer API, the same class as the 2.3.11 2FA bypass. PHP 8.5 support keeps the panel installable on current distributions.
◆ Prediction
Expect further 2.3.x releases with authorization fixes in the API, given the four in 2.3.14 and another in 2.3.16.
Prometheus
5.0DEVOPS
Prometheus 3.16 turns query cost into a setting while its smoothed selectors go stable
◆ Current state
Prometheus is working toward 3.16, with rc.2 dated 27 October. The candidate makes Smoothed and Anchored vector selectors stable and always-on, adds experimental query cost estimation with configurable execution limits behind --enable-feature=query-cost, and brings metadata-wal-records to Agent mode. The patch tracks are moving separately: 3.15.1 and 3.13.5 both distrust two root CAs after the eMudhra key compromise and rebuild on patched Go releases.
◆ Where it's heading
The 3.16 notes spend most of their length on correctness and cost rather than new surface: TSDB out-of-order sample loss, exemplar handling in OTLP and OpenMetrics 2.0, and a long list of parser and memory reductions. Query cost limits are the one addition aimed at operators of shared servers, since a limit on execution is a control that sample counts alone never gave them. Start-timestamp handling also keeps widening, now with a per-query header and counter-reset detection on anchored and smoothed selectors, though it stays behind its feature flag.
◆ Prediction
A 3.16.0 final is the next move, given this candidate has reached rc.2. Query cost and start-timestamp handling both remain behind flags in these notes, so expect feedback on those before either becomes a default.
Alternatives to Froxlor and Prometheus
Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Froxlor or Prometheus.
GraphHopper
GraphHopper 11.1 is a security release, and 12.0 prerelease tags have started.
Apache Syncope
Syncope runs two IAM branches in lockstep, but ships announcements with no change detail.
RaspAP
RaspAP folded its Insiders-only features into the open release, then rebuilt its VPN handling.
Exoscale
Exoscale is filling in cloud basics: VPC, lifecycle rules and cheaper IPv6 load balancing.
NSD
NSD's 4.15 line is being shaped by outside researchers' bug reports.
See all Froxlor alternatives → · See all Prometheus alternatives →
Recent activity from Froxlor and Prometheus
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4d agoPrometheus3.16.0-rc.2: query cost limits, smoothed selectors go stable
- 11d agoPrometheus3.15.1: distrusts two root CAs, patches Go and HTTP/2
- 11d agoPrometheus3.13.5: LTS gets the CA distrust and Go security rebuild
- 13d agoFroxlorfroxlor bugfix release 2.3.16
- 29d agoFroxlorfroxlor bugfix release 2.3.15
- 1mo agoPrometheus3.13.4: gRPC fix, native histogram corrections on LTS
- 1mo agoFroxlorfroxlor bugfix release 2.3.14
- 1mo agoPrometheus3.13.3 / 2026-09-07
- 2mo agoFroxlorfroxlor bugfix release 2.3.13
- 2mo agoFroxlorFroxlor bugfix release 2.3.12
- 2mo agoFroxlor2FA bypass, DKIM key exposure and acme.sh argument injection all fixed
- 2mo agoPrometheus3.14.0 / 2026-08-17
Frequently asked questions
What is the difference between Froxlor and Prometheus?
They serve adjacent needs but don't currently overlap on shipped themes. Froxlor and Prometheus are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Froxlor better than Prometheus?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Froxlor and Prometheus are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.
What are the best alternatives to Froxlor?
Top Froxlor alternatives in DevOps are ranked by recent ship velocity. Browse the "Froxlor alternatives" section above for the current picks, or visit /alternatives/froxlor for the full list with editorial commentary on each.
What are the best alternatives to Prometheus?
Top Prometheus alternatives in DevOps are ranked by recent ship velocity. Browse the "Prometheus alternatives" section above for the current picks, or visit /alternatives/prometheus for the full list with editorial commentary on each.