head to head · open source
SigNoz vs monolog
SigNoz has 32,116 GitHub stars, 2,493 forks, 1,557 open issues and last shipped yesterday. monolog has 21,406 stars, 1,910 forks, 3 open issues and last shipped 9 days ago. SigNoz leads on adoption by 50% (32,116 vs 21,406 stars). SigNoz is written in TypeScript under a custom or non-standard licence; monolog is written in PHP under MIT. SigNoz has attracted 8% as many forks as stars, monolog 9%. SigNoz 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
| SigNoz | monolog | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 21K |
| License | Custom / other | MIT |
| Written in | TypeScript | PHP |
| Last push | 2026-09-17 | 2026-09-09 |
| Forks | ⑂ 2.5K | ⑂ 1.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SigNoz if
- You weight community size — 32K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick monolog if
- You want the monolog feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and monolog fits your workflow better
About SigNoz
SigNoz is an open source, OpenTelemetry native observability platform for cloud native applications. It unifies logs, metrics, traces, alerts, and dashboards into a single tool, replacing fragmented monitoring stacks with a correlated signal pipeline. It lives in the observability ecosystem alongside tools like Prometheus, Jaeger, and Grafana, and is positioned as an open alternative to Datadog.
read the full SigNoz overview →
About monolog
Monolog is a logging library for PHP that sends log records to files, sockets, inboxes, databases, and various web services. It ships with the handlers, formatters, and processors needed to route records where they belong, and special handlers allow more advanced logging strategies than a single output stream. The library lives in the PHP ecosystem and is distributed through Packagist as monolog/monolog . It is released under the MIT license and has been developed for sixteen years, with more than twenty one thousand stars and roughly nineteen hundred forks on GitHub.
read the full monolog overview →
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Frequently asked questions
Is SigNoz or monolog more popular?
SigNoz has 32,116 GitHub stars and monolog has 21,406. SigNoz has the larger community by that measure.
Are SigNoz and monolog free?
Both are open source. SigNoz has no licence declared in this registry, and monolog is licensed under MIT. Both are free to self-host.
What is the difference between SigNoz and monolog?
SigNoz is written in TypeScript and monolog in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SigNoz or monolog?
Choose SigNoz if you want the larger community (32,116 stars) or its Custom / other licence terms. Choose monolog if its feature set, stack or MIT licence fits better. Both are self-hostable.