Like Prometheus, but for logs.
Alternatives To Loki
Project NameStarsDownloadsRepos Using ThisPackages Using ThisMost Recent CommitTotal ReleasesLatest ReleaseOpen IssuesLicenseLanguage
Skywalking21,904445 hours ago24August 30, 202270apache-2.0Java
APM, Application Performance Monitoring System
Loki19,274506 hours ago438April 06, 20221,044agpl-3.0Go
Like Prometheus, but for logs.
Fluent Bit4,604
17 hours ago3June 15, 2022593apache-2.0C
Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX and Windows
Opentelemetry Rust1,13615316 hours ago25January 22, 2022110apache-2.0Rust
OpenTelemetry API and SDK for Rust
2 months ago5mitJava
Frostmourne(霜之哀伤监控平台)是基于Elasticsearch, Prometheus, SkyWalking, InfluxDB,Mysql/TiDB,ClickHouse, SqlServer, IoTDB数据的分布式监控报警系统. Monitor & alert & alarm for Elasticsearch,Prometheus data。主要使用springboot2 + vue-element-admin
Opentelemetry Php549
7 days ago9March 30, 202230apache-2.0PHP
The OpenTelemetry PHP Library
Awesome Monitoring542
6 months ago2Go
5 years ago8mitRoff
Docker host and container monitoring, logging and alerting out of the box using cAdvisor, Prometheus, Grafana for monitoring, Elasticsearch, Kibana and Logstash for logging and elastalert and Alertmanager for alerting.
9 hours ago22apache-2.0Java
HoloInsight is a cloud-native observability platform with a special focus on real-time log analysis and AI integration.
2 months ago167January 16, 202323mitGo
A standard library for microservices.
Alternatives To Loki
Select To Compare

Alternative Project Comparisons

Loki Logo

Drone CI Go Report Card Slack Fuzzing Status

Loki: like Prometheus, but for logs.

Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus. It is designed to be very cost effective and easy to operate. It does not index the contents of the logs, but rather a set of labels for each log stream.

Compared to other log aggregation systems, Loki:

  • does not do full text indexing on logs. By storing compressed, unstructured logs and only indexing metadata, Loki is simpler to operate and cheaper to run.
  • indexes and groups log streams using the same labels youre already using with Prometheus, enabling you to seamlessly switch between metrics and logs using the same labels that youre already using with Prometheus.
  • is an especially good fit for storing Kubernetes Pod logs. Metadata such as Pod labels is automatically scraped and indexed.
  • has native support in Grafana (needs Grafana v6.0).

A Loki-based logging stack consists of 3 components:

  • promtail is the agent, responsible for gathering logs and sending them to Loki.
  • loki is the main server, responsible for storing logs and processing queries.
  • Grafana for querying and displaying the logs.

Loki is like Prometheus, but for logs: we prefer a multidimensional label-based approach to indexing, and want a single-binary, easy to operate system with no dependencies. Loki differs from Prometheus by focusing on logs instead of metrics, and delivering logs via push, instead of pull.

Getting started



Commonly used sections:

Getting Help

If you have any questions or feedback regarding Loki:

Your feedback is always welcome.

Further Reading



Building from source

Loki can be run in a single host, no-dependencies mode using the following commands.

You need go, we recommend using the version found in our build Dockerfile

$ go get github.com/grafana/loki
$ cd $GOPATH/src/github.com/grafana/loki # GOPATH is $HOME/go by default.

$ go build ./cmd/loki
$ ./loki -config.file=./cmd/loki/loki-local-config.yaml

To build Promtail on non-Linux platforms, use the following command:

$ go build ./clients/cmd/promtail

On Linux, Promtail requires the systemd headers to be installed if Journal support is enabled. To enable Journal support the go build tag flag promtail_journal_enabled should be passed

With Journal support on Ubuntu, run with the following commands:

$ sudo apt install -y libsystemd-dev
$ go build --tags=promtail_journal_enabled ./clients/cmd/promtail

With Journal support on CentOS, run with the following commands:

$ sudo yum install -y systemd-devel
$ go build --tags=promtail_journal_enabled ./clients/cmd/promtail

Otherwise, to build Promtail without Journal support, run go build with CGO disabled:

$ CGO_ENABLED=0 go build ./clients/cmd/promtail


Please see ADOPTERS.md for some of the organizations using Loki today. If you would like to add your organization to the list, please open a PR to add it to the list.


Grafana Loki is distributed under AGPL-3.0-only. For Apache-2.0 exceptions, see LICENSING.md.

Popular Prometheus Projects
Popular Logger Projects
Popular Operations Categories
Related Searches

Get A Weekly Email With Trending Projects For These Categories
No Spam. Unsubscribe easily at any time.
Cloud Native