# emoncms/emoncms

Web-app for processing, logging and visualising energy, temperature and other environmental data

Repository: https://github.com/emoncms/emoncms
Canonical: https://ross.abutalabs.com/products/emoncms
Homepage: https://emoncms.org
Language: PHP
License: AGPL-3.0
License Family: copyleft
Topics: emoncms, php, openenergymonitor, energy-monitor, dashboards, sustainability
Last push: 2026-08-21T14:29:26+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 98, longevity 100
- inputs: {"age_days": 5070, "days_push": 12, "days_rel": 12, "gap_med": 0.5, "n_releases_24m": 29}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1319, forks 529 (observed 2026-08-28T04:04:21.345400+00:00)

## What it is
Emoncms is an open-source PHP web application for processing, logging and visualising energy, temperature and other environmental sensor data. It is part of the OpenEnergyMonitor project and supports dashboards, feeds, MQTT input, and a REST API for posting and reading time-series data.

## Use cases
- log and visualise home energy consumption over time
- build dashboards for temperature and environmental sensor data
- self-host a time-series database for sensor feeds
- monitor a heat pump or solar PV system
- ingest sensor readings via MQTT or HTTP API
- export sensor history to CSV

## When to choose
- you want full control and self-hosting of your energy monitoring data
- you use OpenEnergyMonitor hardware like emonPi or emonTx
- you need dashboards and histograms for long-term sensor logs
- you want a Raspberry Pi-friendly low-write logging setup

## When to avoid
- you need a general-purpose business analytics or BI tool
- your stack cannot run PHP with MySQL and Apache
- you need high-frequency industrial SCADA-grade data acquisition
- you want a managed cloud service without self-hosting

## Facets
- artifact type: application
- maturity: active
- function: data-visualization, analytics, web-framework, charts, self-hosted, streaming
- domain: iot, data-visualization, analytics, energy, self-hosted
- platform: self-hosted, php
- tags: energy-monitoring, time-series, dashboards, environmental-data, openenergymonitor, raspberry-pi, mqtt, feeds, data-engineering, web-server, linux, docker

## Member repositories
- emoncms/emoncms (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:21.345400+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:47:53.778659+00:00, confidence not recorded.
  - readme: https://github.com/emoncms/emoncms (fetched 2026-08-28T04:04:21.345400+00:00, sha 8d3760020843)
  - homepage: https://emoncms.org (fetched 2026-08-29T12:06:26.842735+00:00, sha 369728047afa)
  - site_page: https://emoncms.org/site/pricing (fetched 2026-08-29T12:06:26.851515+00:00, sha fe336840a3aa)
  - site_page: https://emoncms.org/site/api (fetched 2026-08-29T12:06:26.853102+00:00, sha b9d3d89dd415)
- Data as of 2026-08-30T08:39:29.467469+00:00.