The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

Python SDK, Proxy Server (AI Gateway) to call 100+ LLM APIs in OpenAI (or native) format, with cost tracking, guardrails, loadbalancing and logging. [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, VLLM, NVIDIA NIM]

A privacy-first, open-source platform for knowledge management and collaboration. Download link: http://github.com/logseq/logseq/releases. roadmap: https://discuss.logseq.com/t/logseq-product-roadmap/34267

Fast C++ logging library.

Like Prometheus, but for logs.

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open source Application Performance Monitoring (APM) & Observability tool

Structured, pluggable logging for Go.

Blazing fast, structured, leveled logging in Go.

Python logging made (stupidly) simple

A high-performance observability data pipeline.

Sends your logs to files, sockets, inboxes, databases and various web services

GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.

OpenObserve is an open-source observability platform for logs, metrics, traces, and frontend monitoring. A cost-effective alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.

Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.

🚀 One-stop solution for creating your AI twin from chat history 💡 Fine-tune LLMs with your chat logs to capture your unique style, then bind to a chatbot to bring your digital self to life. 从聊天记录创造数字分身的一站式解决方案

Logstash - transport and process your logs, events, or other data

Fluentd: Unified Logging Layer (project under CNCF)

A fast & simple, yet powerful & flexible logging framework for macOS, iOS, tvOS, watchOS and visionOS

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

Realtime log viewer for containers. Supports Docker, Swarm and K8s.

Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.

A logger with a small, extensible API which provides utility on top of Android's normal Log class.

Saves Discord chat logs to a file

An open source SDK for logging, storing, querying, and visualizing multimodal and multi-rate data

Log file navigator

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. It has a robust event-based programming language which provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis.

Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

chat log tool, easily use your own chat data. 聊天记录工具，轻松使用自己的聊天数据

Highly configurable logging library