---
name: "upsstats.cgi"
section: "8"
platform: "linux"
package: "nut"
version: "2.8.5-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/upsstats.cgi"
---

# upsstats.cgi(8)

Web-based UPS status viewer

## NAME

upsstats.cgi - Web-based UPS status viewer

## SYNOPSIS

**upsstats.cgi**

**Note**\

As a CGI program, this should be invoked through your web server. If you run it from the command line, it will either complain about unauthorized access or spew a bunch of HTML at you.

## DESCRIPTION

**upsstats.cgi** is a read-only NUT client which uses template files to build web pages containing status information from UPS hardware. It can repeat sections of those template files to monitor several devices simultaneously, or focus on a single UPS.

These templates can also include references to [**upsimage.cgi**(8)](/upsimage.cgi/8.md) for graphical displays of battery charge levels, voltage readings, and the UPS load.

For details about configuring some popular web servers to run NUT CGI programs, please see the [**upsset.conf**(5)](/upsset.conf/5.md) page.

**Note**\

On platforms with required program file name extensions, like Windows, you may have to use e.g. a \*.cgi.exe extension for the programs in HTML template files (UPSSTATSPATH, UPSIMAGEPATH).

## ACCESS CONTROL

upsstats will only talk to [**upsd**(8)](/upsd/8.md) servers that have been defined in your [**hosts.conf**(5)](/hosts.conf/5.md). If it complains that "Access to that host is not authorized", check that file first.

## TEMPLATES

The web page that is displayed is actually a template containing commands to upsstats which are replaced by status information.

The default file used for the overview of devices is upsstats.html. An alternate template may be provided by &template\_list=... CGI query option; relevant file must be allowed via CUSTOM\_TEMPLATE\_LIST option in [**hosts.conf**(5)](/hosts.conf/5.md).

When monitoring a single UPS, the file displayed is upsstats-single.html. An alternate template may be provided by &template\_single=... CGI query option; relevant file must be allowed via CUSTOM\_TEMPLATE\_SINGLE option in [**hosts.conf**(5)](/hosts.conf/5.md).

Alternate templates must be structured similarly to default ones, located in the same directory, and contain .htm in the file name. You can specify in the query string part of the URI (for example, in your local index.html and/or added cells of header.html) as e.g.

```
.../cgi-bin/upsstats.cgi?template_single=custom-s.html&template_list=custom-l.html
```

The format of these files, including the possible commands, is documented in [**upsstats.html**(5)](/upsstats.html/5.md).

## JSON OUTPUT

In addition to processing HTML templates, **upsstats.cgi** can be invoked as a JSON API by adding the **json** parameter to the query string (e.g., **?json** or **&json**).

When this parameter is present, the CGI script bypasses all HTML template parsing and instead returns a JSON object.

The structure of the JSON output depends on whether the **host** parameter is also provided:

• **Multi-host (Default):** If no **host** parameter is specified, the script returns a single JSON object containing an **"devices"** key. This key holds an array, with each element in the array being a JSON object representing a monitored UPS.

• **Single-host Mode:** If a **host** parameter is provided (e.g., **?host=myups@localhost&json**), the script returns a single JSON object for that UPS (it will not be wrapped in an "devices" array).

In both modes, each UPS object includes:

• **host**: The UPS identifier (e.g., "myups@localhost")

• **desc**: The host description from hosts.conf

• **status\_raw**: The raw status string (e.g., "OL")

• **status\_parsed**: An array of human-readable status strings (e.g., \["Online"\])

• **vars**: An object containing the full tree of all available variables for that UPS (e.g., "battery.charge": "100", "ups.model": "...")

## FILES

[**hosts.conf**(5)](/hosts.conf/5.md), [**upsstats.html**(5)](/upsstats.html/5.md), upsstats-single.html

## SEE ALSO

[**upsimage.cgi**(8)](/upsimage.cgi/8.md)

### Internet resources:

The NUT (Network UPS Tools) home page: https://www.networkupstools.org/historic/v2.8.5/