Termal OS vs Netdata.
Netdata is the closest tool to Termal OS in spirit - real-time, beautiful, almost no configuration. It is also the one we respect most. Here is where each one actually wins.
The short answer
Netdata is a monitoring system. Termal OS is an administration cockpit that also monitors. Netdata will tell you more about a server than Termal OS ever will - per-second resolution, thousands of metrics, machine-learning anomaly detection, all with an agent that costs almost nothing to run. What it will not do is let you open the offending log, edit the config file and restart the service.
What Netdata does better
We are not going to pretend otherwise, so let's be specific.
- Metric depth and resolution. Per-second collection across thousands of auto-discovered metrics, out of the box. Termal OS polls on an interval you choose (60 seconds by default, 15 seconds minimum) and collects a focused set: CPU per core, memory, swap, disks, network, load, processes, TCP connections.
- It keeps running without you. The Netdata agent is a daemon on the server. It collects whether or not anyone is watching, and whether or not your laptop is on. Termal OS collects while the app is running on your machine - see below, this is the single biggest architectural difference.
- Retention and history. Netdata stores long histories in its own tiered database and can stream to a parent node you host. Termal OS keeps a short rolling history (24 hours by default) for trend and anomaly detection - enough to answer "what happened last night", not "what did this server do last quarter".
- Open source. Netdata's agent is GPLv3. You can read it, fork it, audit it. Termal OS is closed source today, and we say so plainly.
- Anomaly detection. Netdata ships trained ML models per metric. Termal OS uses a simpler z-score on its own history - useful, but not in the same class.
What Termal OS does differently
Three things, and they all follow from one decision: nothing gets installed on the server.
- Truly agentless. Termal OS connects over a plain SSH connection you already have and runs a shell snapshot each cycle. No daemon, no package, no port to open, no config management to update. That matters most where you cannot install anything: shared and managed hosting, a client's server you do not own, a machine under someone else's change-control process.
- You can act, not just look. Every server carries a full remote desktop: an SFTP file explorer with real progress and permissions, a genuine PTY terminal, a Monaco code editor, a multi-tab browser, an archive manager and a process manager - all through the same single SSH connection. Netdata is read-only by design; it is an observability tool, not an administration tool.
- Hosting-aware. Termal OS detects the stack it lands on - Plesk, cPanel, Infomaniak, plain nginx or Apache - lists the sites it hosts with the real PHP version each one serves, parses access logs into visit statistics, and offers a one-click git pull. That is a web-agency workflow, not a monitoring feature.
Side by side
| Termal OS | Netdata | |
|---|---|---|
| Installed on the monitored server | nothing | agent daemon |
| Metric resolution | 15 s - 60 s | per second |
| Metrics collected | focused set | thousands |
| Collects while you are away | app must run | always |
| History retention | ~24 h rolling | long, tiered |
| Anomaly detection | z-score | ML per metric |
| Remote admin (files, shell, editor) | built in | not its job |
| Hosted sites & PHP version discovery | yes | - |
| Multi-server view, self-hosted | built in | parent node or Cloud |
| Licence | closed source | GPLv3 agent |
| Works on shared hosting | yes | no |
Green is not "better" - it is "stronger on that row". Half of these rows are Netdata's, and that is the honest picture.
Which one to pick
Choose Netdata if you own the servers and can install an agent; you want maximum metric depth and long retention; you need collection to continue 24/7 regardless of your own machine; you want open source you can audit; or you are monitoring dozens to thousands of nodes.
Choose Termal OS if you cannot install anything on the target - shared hosting, a client's box, a locked-down VM; you manage a handful to a few dozen Linux servers; you want to fix the problem in the same window where you saw it; or you want your credentials and metrics to stay on your own machine, with no cloud account holding them.
Running both is a perfectly good answer
These tools do not exclude each other, and on servers you own they complement each other neatly: Netdata for deep, always-on observability, Termal OS as the hands-on cockpit for the moment something needs doing. Termal OS adds nothing to the server, so it cannot conflict with an agent that is already there.
Where Termal OS is today
So you are not surprised after downloading:
- Collection needs the app running. Background collection is independent of the window - you can close the interface and it keeps polling and alerting - but the application must be running on a machine that is awake, with the credential vault unlocked. Close the laptop and collection stops. Netdata has no such constraint.
- Scale. Designed for a few to a few dozen servers. It is not built for thousands of hosts, and there is no SNMP, no network discovery and no Windows monitoring.
- It is a v0.x in public Preview. Free right now with up to 3 servers. Windows and macOS builds are not code-signed yet, so automatic updates are deliberately disabled on those platforms - the reasoning is on the security page.