documentation.js
Generate API documentation for ES2015+ and Flow-annotated code.
- Status
- UnmaintainedNo commits in 543 days.
- Last checked
- Checked · Oct 15, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
Documentation.js is an open-source tool that generates comprehensive API documentation from your JavaScript source files, supporting modern ECMAScript features and Flow type annotations. It's essential for developers looking to maintain clear and up-to-date documentation alongside their evolving codebases.
Documentation.js stands out as an open-source, extensible solution specifically designed to generate comprehensive API documentation from modern JavaScript codebases with support for ES2015+ and Flow annotations.
When it fits — and when it doesn’t
A good fit for
JavaScript developers who need to maintain clear and up-to-date API documentation
Teams working on large-scale JavaScript applications with complex APIs
Open-source project maintainers looking for automated documentation generation
Look elsewhere if
Projects that require real-time documentation updates (documentation.js generates static output)
Users who prefer a web-based UI for managing their documentation (it's a command-line tool)
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited customization options for output formats
While documentation.js supports HTML and Markdown, advanced customization requires significant effort and may not cover all use cases.
- 02
Poor handling of complex code structures
Documentation.js can struggle with documenting deeply nested or highly modular JavaScript applications, leading to incomplete or inaccurate documentation.
- 03
Inconsistent support for Flow type annotations
Flow annotation parsing is not always reliable, which can result in missing or incorrect information in the generated documentation.
- 04
Lack of real-time updates and integration with modern CI/CD pipelines
Documentation.js does not natively support automatic documentation generation within continuous integration workflows, requiring manual intervention or additional configuration.
What it does well
Support for ES2015+ and Flow annotations
Generates documentation from source code comments
Customizable output formats (HTML, Markdown)
Extensible through plugins
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up documentation.js
Setup steps, common gotchas and what to check after 30 days.
Get the badge
A small badge for documentation.js’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.
Markdown
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