head to head · open source
monolog vs go-grpc-middleware
monolog has 21,402 GitHub stars, 1,920 forks, 3 open issues and last shipped 4 days ago. go-grpc-middleware has 6,760 stars, 746 forks, 83 open issues and last shipped 1 months ago. monolog leads on adoption by 217% (21,402 vs 6,760 stars). monolog is written in PHP under MIT; go-grpc-middleware is written in Go under Apache-2.0. monolog has attracted 9% as many forks as stars, go-grpc-middleware 11%. monolog was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (logging), so they are genuine substitutes rather than adjacent tools.
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
| monolog | go-grpc-middleware | |
|---|---|---|
| GitHub stars | ★ 21K | ★ 6.8K |
| License | MIT | Apache-2.0 |
| Written in | PHP | Go |
| Last push | 2026-11-01 | 2026-10-06 |
| Forks | ⑂ 1.9K | ⑂ 746 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick monolog if
- You weight community size — 21K stars and counting
- You want the MIT license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick go-grpc-middleware if
- You want the go-grpc-middleware feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and go-grpc-middleware fits your workflow better
About monolog
Monolog Logging for PHP Note This is the documentation for Monolog 3.x , if you are using older releases see the documentation for Monolog 2.x or Monolog 1.x Monolog sends your logs to files, sockets, inboxes, databases and various web services. See the complete list of handlers below. Special handlers allow you to build advanced logging strategies. This library implements the PSR 3 interface that you can type hint against in your own libraries to keep a maximum of interoperability. You can also use it in your applications to make sure you can always use another compatible logger at a later time. As of 1.11.0…
read the full monolog overview →
About go-grpc-middleware
Go gRPC Middleware This repository holds gRPC Go Middlewares: interceptors, helpers and utilities. Middleware gRPC Go has support for "interceptors", i.e. middleware that is executed either on the gRPC Server before the request is passed onto the user's application logic, or on the gRPC client either around the user call. It is a perfect way to implement common patterns: auth, logging, tracing, metrics, validation, retries, rate limiting and more, which can be a great generic building blocks that make it easy to build multiple microservices easily. Especially for observability signals (logging, tracing, metrics)…
read the full go-grpc-middleware overview →
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Frequently asked questions
Is monolog or go-grpc-middleware more popular?
monolog has 21,402 GitHub stars and go-grpc-middleware has 6,760. monolog has the larger community by that measure.
Are monolog and go-grpc-middleware free?
Both are open source. monolog is licensed under MIT and go-grpc-middleware under Apache-2.0. Neither carries a licence fee.
What is the difference between monolog and go-grpc-middleware?
monolog is written in PHP and go-grpc-middleware in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, monolog or go-grpc-middleware?
Choose monolog if you want the larger community (21,402 stars) or its MIT licence terms. Choose go-grpc-middleware if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.