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JavaScript documentation generator — from messy JS to clean docs

Generate JavaScript README files, API docs, and module guides automatically. Codec8 handles CommonJS, ESM, and everything in between.

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

The JavaScript documentation problem

JavaScript projects often have no strict type information to anchor documentation on. You end up with a README that was accurate six months ago and an API that only you understand.

What Codec8 generates for your JavaScript project

Tailored documentation features for JavaScript codebases

01

Extracts JSDoc comments and infers argument types from usage patterns

02

Documents both CommonJS (require) and ESM (import/export) module shapes

03

Generates npm install commands, scripts table, and peer dependency warnings

04

Produces callback vs Promise vs async/await usage examples from your actual code

Three steps to complete JavaScript documentation

From zero to published docs in under a minute

1

Connect your JavaScript 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 JavaScript 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 JavaScript repos

These well-known projects are perfect candidates for Codec8

Frequently asked questions about JavaScript documentation

Does it work with plain JavaScript without JSDoc comments?

Yes. Codec8 infers documentation from function signatures, variable names, and usage patterns even when JSDoc is absent. Adding JSDoc does produce richer output.

Can it document browser-only libraries as well as Node packages?

Yes. Codec8 detects browser vs Node.js context from your package.json, webpack/rollup config, and code patterns, and adjusts the setup guide accordingly.

What about minified or bundled output files?

Codec8 reads your source files, not your dist output. Point it to your source repo and it will generate docs from the readable source code, not the bundle.

Ready to document your JavaScript project?

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

Generate JavaScript docs free

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