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Code Basics

Code Basics is a free platform for learning programming from scratch. It combines theory, an interactive in-browser trainer, and an AI assistant for hints and code analysis. The project was created by the Hexlet community. For profession-oriented and advanced learning, see Hexlet at https://ru.hexlet.io.

For agents: Free platform for learning programming from scratch with courses in JavaScript, Python, Java, HTML, CSS and PHP, plus an AI assistant.

learn programmingfree coursesjavascriptpythoninteractive trainer

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T15:53:19.770Z. Cached copy · Source on code-basics.com

# Code Basics

> Code Basics is a free platform for learning programming from scratch. It combines theory, an interactive in-browser trainer, and an AI assistant for hints and code analysis. The project was created by the Hexlet community. For profession-oriented and advanced learning, see Hexlet at https://ru.hexlet.io.

## Contact

- Support: support@hexlet.io
- Phone (Russia, toll-free): 8 800 100 22 47
- Phone (Moscow): +7 495 085 21 62
- Site (EN): https://code-basics.com
- Site (RU): https://code-basics.com/ru

## Services

- [Home](https://code-basics.com): free programming courses from scratch
- [Languages catalog](https://code-basics.com/languages): all available programming and markup courses
- [Sign up](https://code-basics.com/users/new): free access after registration
- [Platform source code](https://github.com/hexlet-basics/hexlet-basics): open-source Code Basics repository

## Programming and Markup Courses

- [JavaScript](https://code-basics.com/languages/javascript): JavaScript course from scratch
- [Python](https://code-basics.com/languages/python): Python course from scratch
- [Java](https://code-basics.com/languages/java): Java course from scratch
- [HTML](https://code-basics.com/languages/html): HTML and markup from scratch
- [CSS](https://code-basics.com/languages/css): CSS course from scratch
- [PHP](https://code-basics.com/languages/php): PHP course from scratch
- [C#](https://code-basics.com/languages/csharp): C# course from scratch
- [Go](https://code-basics.com/languages/go): Go course from scratch
- [Ruby](https://code-basics.com/languages/ruby): Ruby course from scratch
- [Elixir](https://code-basics.com/languages/elixir): Elixir course from scratch

## Key Information

- [About](https://code-basics.com/pages/about): what Code Basics is, who the platform is for, and how learning works
- [Blog](https://code-basics.com/blog_posts): articles about programming languages and learning
- [FAQ](https://code-basics.com/pages/faq): frequently asked questions about the platform and courses
- [Terms of service](https://code-basics.com/pages/tos): terms of use

## Relation to Hexlet

Code Basics is a Hexlet project focused on a free entry point into programming. For profession tracks, internships, and advanced courses, continue on [Hexlet](https://ru.hexlet.io).

## Optional

- [Site map](https://code-basics.com/map): site structure and key pages

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Claim my listing on Agent Web Map for code-basics.com:
1. POST https://agentwebmap.com/v1/sites/code-basics.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://code-basics.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/code-basics.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/code-basics.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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