# divan/expvarmon

TermUI based monitor for Go apps using expvars (/debug/vars). Quickest way to monitor your Go app(s).

Repository: https://github.com/divan/expvarmon
Canonical: https://ross.abutalabs.com/products/expvarmon
Language: Go
License: MIT
License Family: permissive
Last push: 2023-11-14T02:21:16+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4142, "days_push": 1024, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2049, forks 98 (observed 2026-08-28T04:06:09.088454+00:00)

## What it is
A terminal-based monitoring tool for Go applications that reads expvar (/debug/vars) endpoints and displays metrics like memory, durations, and counters as sparkline charts. It supports monitoring one or many local or remote apps with minimal configuration.

## Use cases
- monitor memory usage of a Go app during development
- watch expvar metrics in the terminal
- track goroutine counts across multiple Go services
- quickly debug response duration metrics
- monitor several local Go apps at once

## When to choose
- you need instant, zero-config metrics for Go apps exposing expvars
- you want a lightweight terminal dashboard without storage or alerting
- you're debugging or developing Go services locally

## When to avoid
- production monitoring with alerting and history
- apps that don't expose expvars endpoints
- you need persistent metrics storage or dashboards

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: monitoring, terminal-ui, cli
- domain: monitoring, developer-tools
- platform: windows, cli, go
- tags: expvar, termui, go-apps, debugging, sparklines, command-line, linux, macos

## Member repositories
- divan/expvarmon (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:09.088454+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 2026-08-30T02:57:37.291045+00:00, confidence not recorded.
  - readme: https://github.com/divan/expvarmon (fetched 2026-08-28T04:06:09.088454+00:00, sha f2405493f5d4)
- Data as of 2026-08-30T08:39:29.467469+00:00.