# apache/tomcat

Apache Tomcat

Repository: https://github.com/apache/tomcat
Canonical: https://ross.abutalabs.com/products/tomcat
Homepage: https://tomcat.apache.org
Language: Java
License: Apache-2.0
License Family: permissive
Topics: javaee, http, java, network-server, tomcat
Last push: 2026-08-26T11:20:23+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 5450, "days_push": 7, "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 8234, forks 5388 (observed 2026-08-28T04:10:19.765446+00:00)

## What it is
Apache Tomcat is an open-source servlet container implementing the Jakarta Servlet, Pages, Expression Language, WebSocket, Annotations, and Authentication specifications. It serves as a web server and application runtime for Java web applications, powering large-scale mission-critical deployments.

## Use cases
- deploy java web applications
- run a servlet container for jsp apps
- host jakarta ee web apps
- serve http requests for a java backend
- run websockets in a java server
- self-host a java application server

## When to choose
- you need a battle-tested, production-grade servlet container for Java or Jakarta EE web apps
- you want a lightweight alternative to full Java EE application servers
- you need WebSocket, JSP, and EL support in a Java web runtime

## When to avoid
- you need a full Jakarta EE application server with EJB, JMS, and CDI out of the box
- you are building non-JVM applications
- you want a modern reactive/microservice runtime like Spring WebFlux or Quarkus

## Facets
- artifact type: application
- maturity: stable
- function: http-server, web-framework, websocket, auth, middleware
- domain: web-development, backend, apis, developer-tools
- platform: jvm, windows, cross-platform, self-hosted
- tags: servlet-container, jakarta-ee, jsp, servlet, java-ee, web-container, apache, linux, macos, web-server, docker

## Member repositories
- apache/tomcat (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:19.765446+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 2026-08-29T17:29:30.384629+00:00, confidence not recorded.
  - readme: https://github.com/apache/tomcat (fetched 2026-08-28T04:10:19.765446+00:00, sha 88390791788c)
  - homepage: https://tomcat.apache.org (fetched 2026-08-29T08:28:10.506288+00:00, sha b91887dd6fea)
  - site_page: https://cwiki.apache.org/confluence/display/TOMCAT/FAQ (fetched 2026-08-29T08:28:10.515361+00:00, sha 0b361b880134)
  - site_page: https://tomcat.apache.org/tomcat-10.1-doc/changelog.html (fetched 2026-08-29T08:28:10.517603+00:00, sha ad704bb2dc79)
  - site_page: https://tomcat.apache.org/tomcat-11.0-doc/changelog.html (fetched 2026-08-29T08:28:10.525588+00:00, sha 2f486436ac48)
  - site_page: https://tomcat.apache.org/tomcat-9.0-doc/changelog.html (fetched 2026-08-29T08:28:10.531783+00:00, sha 7f0cc82f2f11)
  - site_page: https://tomcat.apache.org/native-doc/miscellaneous/changelog.html (fetched 2026-08-29T08:28:10.538940+00:00, sha 4a8f673353f0)
  - site_page: https://tomcat.apache.org/native-1.3-doc/miscellaneous/changelog.html (fetched 2026-08-29T08:28:10.541291+00:00, sha f588481b8600)
  - site_page: https://tomcat.apache.org/connectors-doc/miscellaneous/changelog.html (fetched 2026-08-29T08:28:10.543372+00:00, sha a1a7e756d58e)
- Data as of 2026-08-30T08:39:29.467469+00:00.