VictoriaMetrics victoriametrics.com ↗

Perfetto ↗Observability

An open-source system profiling and trace analysis tool.

Metabase ↗Data & analytics

An open-source business intelligence and dashboarding tool.

iStat Menus ↗Observability

A macOS menu bar app for monitoring system resources.

ZeroFS ↗Infrastructure & cloud

A filesystem that is backed by object storage.

OpenViking AI & ML

An open-source, self-hostable context and memory system for AI agents made by ByteDance.

DBOS ↗Operating systems

A DBMS-oriented operating system research project.

Downdetector ↗Observability

A site that charts user-reported service problems.

OpenSSH ↗Security & privacy

The standard open-source SSH client and server suite.

Downdetector ↗

A site that charts user-reported service problems.

ccusage ↗

A CLI that estimates Claude Code usage costs from local logs.

GitHub Statuses ↗

A third-party page tracking GitHub's historical uptime based on its incident data.

Mac Monitor ↗

A macOS menu bar CPU indicator with a browser-based details UI.

OnlineOrNot ↗

An uptime monitoring service that actively checks websites and APIs.

Opik ↗

An open-source platform for evaluating and observing LLM applications and agents.

Perfetto ↗

An open-source system profiling and trace analysis tool.

ThousandEyes Internet Insights ↗

Cisco's public internet outage map built on network telemetry.

evemon ↗

A Linux process monitor inspired by Process Explorer, with remote monitoring over SSH.

iStat Menus ↗

A macOS menu bar app for monitoring system resources.

lnav ↗

A terminal-based log file viewer and analyser.