Open-source projects built with Protocol Buffers

Uptime Kuma

A self-hosted monitoring tool that checks websites and services and sends alerts and status pages.

A continuous file synchronization program that syncs folders directly between your own devices without a central server.

Grafana

A dashboard and visualization tool that queries many data sources such as Prometheus, with a commercial Enterprise edition and a hosted Grafana Cloud.

Prometheus

A metrics monitoring and alerting system that stores time series locally and is queried with PromQL; a CNCF graduated project.

Gitea

A lightweight self-hosted Git service with issues, pull requests, a package registry and built-in CI (Gitea Actions).

LibreChat

A self-hosted chat interface that works with many AI model providers, with SSO and agents.

An error and performance monitoring tool for applications that you can run yourself with Docker Compose or use as the hosted sentry.io service.

PhotoPrism

A self-hosted photo library that uses AI-based tagging and face and place recognition to browse and search your pictures and videos.

Langfuse

An open-source platform for tracing, evaluating and managing prompts for LLM applications.

An observability platform built on OpenTelemetry that combines logs, metrics, traces, alerts and dashboards in one place.

An open-source security platform for threat detection, log analysis, file integrity monitoring and compliance (SIEM and XDR), with a central server, indexer, dashboard and endpoint agents.

Woodpecker CI

A lightweight, container-based CI/CD engine that you host yourself and connect to your Git forge.

ownCloud Infinite Scale

A self-hosted file sync and sharing platform written in Go, shipped as a single binary or container, with desktop and mobile clients.