# touchlab/Kermit

Kermit by Touchlab is a Kotlin Multiplatform centralized logging utility.

Repository: https://github.com/touchlab/Kermit
Canonical: https://ross.abutalabs.com/products/kermit
Homepage: https://kermit.touchlab.co
Language: Kotlin
License: Apache-2.0
License Family: permissive
Topics: kotlin, kotlin-native, kotlin-multiplatform
Last push: 2026-08-24T12:43:17+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 48, longevity 100
- inputs: {"age_days": 2337, "days_push": 9, "days_rel": 184, "gap_med": 127.5, "n_releases_24m": 5}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1024, forks 51 (observed 2026-08-28T04:03:16.463453+00:00)

## What it is
Kermit is a Kotlin Multiplatform logging library that lets shared Kotlin code write log statements to composable log outputs. It ships platform-specific LogWriters (Logcat, OSLog, console) plus integrations for Crashlytics, Bugsnag, and Koin.

## Use cases
- log from shared Kotlin Multiplatform code
- write logs to Logcat on Android and OSLog on iOS
- integrate logging with Crashlytics or Bugsnag
- disable or strip log statements in production builds
- customize log writers and severity levels

## When to choose
- you're building a Kotlin Multiplatform app and need centralized logging across platforms
- you want platform-native log outputs with a single shared API
- you need crash reporting integration from shared code

## When to avoid
- you're not using Kotlin or Kotlin Multiplatform
- you need a logging solution for a single-platform JVM backend where SLF4J/Logback ecosystems fit better

## Facets
- artifact type: library
- maturity: active
- function: logging
- domain: developer-tools, mobile-development, cross-platform
- platform: jvm, windows
- tags: kotlin-multiplatform, logcat, oslog, crash-reporting, koin, android, ios, macos, linux, nodejs

## Member repositories
- touchlab/Kermit (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:16.463453+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 2026-08-30T07:08:15.770562+00:00, confidence not recorded.
  - readme: https://github.com/touchlab/Kermit (fetched 2026-08-28T04:03:16.463453+00:00, sha 476eed5ce11c)
  - homepage: https://kermit.touchlab.co (fetched 2026-08-29T13:08:33.125080+00:00, sha a4a20e04ea67)
  - site_page: https://kermit.touchlab.co/docs (fetched 2026-08-29T13:08:33.134704+00:00, sha 7e8dbbfc0fce)
  - site_page: https://kermit.touchlab.co/htmlMultiModule (fetched 2026-08-29T13:08:33.136958+00:00, sha f7bf2a7e1864)
- Data as of 2026-08-30T08:39:29.467469+00:00.