Sentry

Gatus

Gatus is a lightweight, self‑hosted monitoring solution that continuously checks the health of your services and endpoints. It provides real‑time status pages and integrates with popular incident management tools. Designed for DevOps engineers and system administrators, Gatus runs on any web server and offers flexible alert routing via Slack, PagerDuty, and email, all without any licensing costs.

Linear

Linear is an issue tracking and project management tool built specifically for software teams, prioritizing speed and keyboard-driven workflows over configurability. Every interaction, from creating an issue to switching between projects, is designed to feel instant. Linear structures work around Cycles (time-boxed sprints), Projects, and Roadmaps, giving teams a lightweight but opinionated framework for planning without the overhead of heavily customized workflows common in older tools. Deep Git integration automatically links commits, branches, and pull requests to issues, and Linear's API and webhooks make it straightforward to build custom automations around the tool.

Checkmate

Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. It provides a comprehensive overview of server performance and helps teams identify and resolve issues quickly.

it-tools

it-tools is an open‑source web application that aggregates a wide range of small utilities developers and IT staff use daily. The interface is consistent and searchable, letting users quickly find converters, encoders, decoders, generators, formatters and validators. The service is available as a hosted site and can also be self‑hosted via Docker, making it suitable for teams that need a private, on‑premise instance or a quick cloud solution.