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Java documentation generator — JavaDoc without writing a single tag

Auto-generate Java project README, class hierarchy diagrams, and API reference from your source code. Codec8 handles Maven, Gradle, and Spring projects alike.

README free, no signup · 60 seconds · Export as Markdown

The Java documentation problem

Java projects have Javadoc, but most teams either skip writing tags entirely or write them inconsistently. The result is documentation that covers 20% of the public API and misleads readers about the rest.

What Codec8 generates for your Java project

Tailored documentation features for Java codebases

01

Reads existing Javadoc tags (@param, @return, @throws) and infers missing documentation from code

02

Generates Maven pom.xml and Gradle dependency snippets for easy integration

03

Produces UML-style class and interface hierarchy diagrams as Mermaid charts

04

Documents Spring annotations (@RestController, @Service, @Entity) into human-readable endpoint and model reference

Three steps to complete Java documentation

From zero to published docs in under a minute

1

Connect your Java repo

Paste your GitHub repository URL. Public repos work instantly — no signup required for the free README preview.

2

AI generates your docs

Codec8 reads your Java source code, dependencies, and structure, then generates README, API docs, architecture diagrams, and setup guide.

3

Export or open a PR

Download your documentation as Markdown files or let Codec8 open a pull request directly to your repository.

Docs we can generate for popular Java repos

These well-known projects are perfect candidates for Codec8

Frequently asked questions about Java documentation

Does it support both Maven and Gradle build systems?

Yes. Codec8 reads pom.xml for Maven projects and build.gradle or build.gradle.kts for Gradle projects, generating appropriate dependency and build instructions.

Can it document legacy Java 8 projects with no modern annotations?

Yes. Codec8 works with any Java version. For older codebases without annotations it relies more heavily on naming conventions, class hierarchies, and any existing Javadoc.

How does it handle multi-module Maven projects?

Codec8 reads the parent pom.xml and each module, generating per-module documentation and a top-level project guide explaining what each module does and how they fit together.

Ready to document your Java project?

Paste your GitHub repo URL and get a free README preview in 60 seconds. No signup required.

Generate Java docs free

Free README · No signup · 30-day refund on paid plans