Watchflare

7.0easy start · #25of 46
in Container Monitoring

Free to practise onyes
Well documentedyes
Runs where you workyes

Runs on Linux, Mac, self-hosted, Web.

Watchflare is ranked #25 of 46 in container monitoring on The Geeks Club. It runs on Linux, macOS, Self-hosted, Web. There is a free plan.

Watchflare plans and pricing

All plans

Free self-hosted Free Free to self-host Runs on your own hardware watchflare.io · 4 Oct 2026

Compared on container monitoring

Free plan: Yes

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The record

Purpose: Watchflare is open-source, self-hosted server monitoring that collects host metrics and package inventory and sends alerts.
Live metrics: Agents collect CPU, memory, disk, network, load, temperature, disk I/O, and swap metrics every 30 seconds.
Containers: Opt-in container monitoring reports per-container CPU, memory, and network metrics through Docker or Podman.
Package inventory: Watchflare scans about 30 package managers daily, records package changes, and detects available updates for supported managers.
Alerts: Users can set host-specific thresholds for CPU, memory, disk, load, and temperature, plus host-offline alerts.
Integrations: Notifications can be sent by email or through Shoutrrr-supported channels including Discord, Slack, Telegram, Matrix, Ntfy, Gotify, and generic HTTP.
Security: The product documents TLS 1.3, HMAC-SHA256 signed requests with anti-replay, JWT sessions, and bcrypt passwords.
Data control: The Hub and database run on infrastructure the user controls, and agents communicate only with the Hub; the maker says there is no usage tracking or telemetry.
Outage handling: Agents buffer metrics in a configurable 10 MB default write-ahead log and replay them on reconnect; container metrics are not buffered.
Storage: Metrics are stored in PostgreSQL with TimescaleDB, on a user-controlled Docker volume by default or an external TimescaleDB instance.
Deployment: The Hub can be deployed with Docker Compose or as a standalone binary, and the web dashboard is embedded in the Hub.
Supported systems: The agent supports Linux with systemd and macOS through Homebrew; Windows support is planned.
Requirements: The Hub requires Docker Engine 20.10+ with Compose v2+ for the documented Docker deployment; Linux and macOS agents support x86_64 and ARM64.
License and support: Watchflare is licensed under AGPL-3.0, and the maker directs users to GitHub for issues and pull requests.
Price from: Free

Where it ranks on The Geeks Club

Best Container Monitoring in 2026#25 of 46

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Sources

docs.watchflare.io/get-started/introduction/· checked 4 Oct 2026
watchflare.io· checked 4 Oct 2026
docs.watchflare.io/monitoring/packages/· checked 4 Oct 2026