16.3
WebLinuxmacOS
Best Online Code Documentation and Reference Sites in 2026
Online code documentation and reference sites help you read language, framework and API details in a browser or a local setup. They can support work with projects such as Angular, Java, Kotlin, Django and web standards. Check Android access before you choose.
26.3
unittest is Python’s unit testing framework for automating tests and organizing their setup and execution.
Free planLinuxmacOSWindows
36.1
Node.js --prof is a free command-line option for generating V8 profiler output from Node.js.
Free planLinuxmacOSSelf-hosted
- 45.8
- 55.0
- 6
dart doc
LinuxmacOSWindows4.8 - 7
Vue.js
Web4.8 - 8
Django
Django is a free, open-source backend framework for building applications with Python.
4.5 - 9
Angular Documentation
Google
4.3 - 104.3
- 11
cppreference.com
cppreference.com contributors
4.3 - 12
DevDocs
FreeCodeCamp
4.3 - 13
Go Documentation
Google
4.3 - 14
Java Documentation
Oracle
4.3 - 15
Kotlin Documentation
JetBrains
4.3 - 16
MDN Web Docs
Mozilla
4.3 - 17
Rust Documentation
Rust Project
4.3 - 184.3
Choosing well
Check Android access
Check whether the service has a mobile app or a web interface that works well on your Xiaomi, Redmi or POCO phone.
Web is one of the listed platform types, alongside Windows, macOS, Linux and self-hosted setups.
Match the platform to your setup
Choose a web service for browser-based reading, or look for Windows, macOS or Linux support when you need a desktop workflow.
Self-hosted options can suit a setup where documentation runs on your own infrastructure.
Compare scope and freshness
Look at the languages, frameworks and APIs covered by a site, then check how current its material is. Breadth and freshness are part of the ranking basis.
Review price and licence terms
A free plan is offered by items in this category. Check the stated price details and the licence before using content in a project or distributing a local copy.
Questions people ask
Is there an Android app for these documentation sites?
The supplied facts do not specify an Android app. Check the platform details for the service you want, and use its web option when available.
Which platforms are represented?
The platform types listed for this category are web, Windows, macOS, Linux and self-hosted setups.
Can I use a free plan?
A free plan is offered by items in this category. Review the pricing details for the site you choose.
What should I compare beyond price?
Compare Android access, platform fit, documentation scope, freshness and licence terms.
Can I run documentation locally?
Self-hosted is one of the listed platform types. Confirm the specific service supports the local setup you need.