Infrastructure & Security · Monitoring & Reliability
0 paid against 9 free you can run yourself.
Paid against free › Infrastructure & Security › Monitoring & Reliability › Logs & Observability · Running in production on Repo Radar
Prices and free tiers as checked, dated on each review.
Paid tools for this job are being added. The free alternatives below are ready to use.
Free to use. You run it on your own server.
They do this job.
It draws hundreds of live charts about a single computer with almost no setting up.
★ 80.9kFreeGLglanceapp/glanceA single home page that gathers feeds, weather and machine statistics.
★ 37.5kFreeGLnicolargo/glancesA live view of one computer's health, in a terminal, in a browser, or through an AI assistant.
★ 33.4kFreeSISigNoz/signozLogs, server numbers and request timings from a company's own machines, on one screen.
★ 32.3kFreeOPopenobserve/openobserveOne program that collects logs, numbers and request timings, and searches all three.
★ 22.4kFreeDOamir20/dozzleA web page showing the live output of every container on a machine, with search.
★ 14.7kFreeLNtstack/lnavA log reader that puts many files into one timeline and answers questions about them in SQL.
★ 10.7kFreeMAaxllent/mailpitA fake mail server with a web inbox, for reading messages before real people get them.
★ 10.6kFreeCOcoroot/corootIt watches the traffic between programs on a group of servers and draws a map of it.
★ 8kFreeA second choice: they cover part of this job or are a building block for it.
A self-hosted monitor that checks whether a site, port or certificate still answers.
★ 92.4kFreeGHNationalSecurityAgency/ghidraIt disassembles and decompiles compiled programs so a person can read them.
★ 89.8kFreeBEhenrygd/beszelA light server monitor with history, per-container figures and alerts.
★ 26.1kFreeOPcomet-ml/opikDebug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
★ 22.7kFreeGOallinurl/goaccessA log reader that turns a web server access log into a terminal dashboard or an HTML report.
★ 21kFreeCRcrowdsecurity/crowdsecIt reads a machine's own log files, decides who is attacking, blocks them, and shares what it found with everyone else running it.
★ 15.2kFreeOPopenreplay/openreplaySelf-hosted session replay: it records a visit to a website and plays it back.
★ 13kFreeVUfuture-architect/vulsScans Linux machines over SSH for installed software with publicly reported security holes.
★ 12.3kFreeGATwiN/gatusA status page with checks, history and alerts, all from one text file.
★ 12.3kFreePGankane/pgheroA web dashboard that shows which PostgreSQL queries are slow and which indexes are missing.
★ 8.9kFreeSCAnalogJ/scrutinyIt shows whether the drives in a machine are healthy, failing, or already in trouble.
★ 8.3kFreeDIcrazy-max/diunIt reports when a container image in use has a newer version, and does nothing else.
★ 5kFreeLOpydantic/logfireAI observability platform for production LLM and agent systems.
★ 4.5kFreeWAwal-g/wal-gBackup and restore for several database systems, straight into cloud storage, able to rewind to any chosen point in time.
★ 4.3kFreePGdarold/pgbadgerIt reads PostgreSQL's own log file and writes one page naming the slowest queries.
★ 4.1kFreePGdalibo/pg_activityA live screen showing every query a PostgreSQL database is running right now.
★ 3.1kFreeOPopenlit/openlitOpenLIT is the open-source agent harness engineering platform: trace, evaluate, guard, and improve everything around the model in your AI agents, on OTEL.
★ 2.9kFreeDOmag37/dockcheckIt lists which containers have a newer version published and updates the ones you choose.
★ 2.5kFreeDEankane/dexterIt reads slow queries and reports which PostgreSQL indexes to create.
★ 2.1kFreeBUbugsink/bugsinkA self-hosted error tracker that speaks the Sentry protocol.
★ 2.1kFreeOVnoborus/ovA modern terminal viewer for long files, with fixed headers and live following.
★ 2kFreePYpyrra-dev/pyrraWrites Prometheus reliability rules from a short declaration, and shows the remaining error budget.
★ 1.6kFreePGcybertec-postgresql/pgwatchContinuous PostgreSQL monitoring with ready-made dashboards.
★ 896FreeOne job at a time: the paid tools worth paying for, the free ones you can run yourself, and who should pick which.
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