What formats does this convert between?

Five agent config formats: CLAUDE.md (Claude Code), AGENTS.md (OpenAI Codex and other agents), .cursorrules (Cursor), .github/copilot-instructions.md (GitHub Copilot), and .windsurfrules (Windsurf). Paste any input, pick your target.

How is the conversion different per format?

Markdown-based targets (CLAUDE.md, AGENTS.md, copilot-instructions.md) keep the heading structure and add a format-appropriate preamble. Flat rule files (.cursorrules, .windsurfrules) extract imperative rules and drop prose, since Cursor and Windsurf work better with terse rule lists.

Do I need to edit the output?

Usually a quick review — each agent tool has quirks. For Cursor, keep rules imperative and under 2 lines each. For Copilot, first-person voice works best. For CLAUDE.md, include concrete commands. The output gets you 80% there; polish the rest.

Does it work with YAML frontmatter?

Yes. Frontmatter is preserved for markdown-based targets (CLAUDE.md, AGENTS.md, copilot-instructions.md) and dropped for flat rule files which don't support it.

Is this Karpathy-Skills or claude-doctor compatible?

Yes. Paste output from either and convert to your preferred format. The converter doesn't add behavioral rules itself — it restructures what you paste in. If you want a behavioral baseline, paste a known-good CLAUDE.md and convert down.

CLAUDE.md Converter

Paste your CLAUDE.md (or AGENTS.md, or raw rules) and instantly convert it into the format your other agent tool expects. Handles Claude Code, OpenAI Codex, Cursor, GitHub Copilot, and Windsurf. Preserves sections for markdown targets, extracts imperative rules for flat rule-files. Download or copy. No upload, all client-side.

Convert to

Cursor — direct imperative rules (no markdown)

Source (any format)

.cursorrules

How the conversion works

• CLAUDE.md / AGENTS.md: keeps headings, adds a standard preamble
• .cursorrules / .windsurfrules: extracts imperative rules, strips prose
• copilot-instructions.md: rewrites as first-person guidance for Copilot
• Frontmatter: preserved where the target format supports it

Next useful step

Test your AI fundamentals next

If this tool is part of your AI or developer workflow, the free CloudYeti diagnostic shows which AWS AI concepts you already know and where you are weak.

Take the AI diagnostic

Frequently Asked Questions

What formats does this convert between?: Five agent config formats: CLAUDE.md (Claude Code), AGENTS.md (OpenAI Codex and other agents), .cursorrules (Cursor), .github/copilot-instructions.md (GitHub Copilot), and .windsurfrules (Windsurf). Paste any input, pick your target.
How is the conversion different per format?: Markdown-based targets (CLAUDE.md, AGENTS.md, copilot-instructions.md) keep the heading structure and add a format-appropriate preamble. Flat rule files (.cursorrules, .windsurfrules) extract imperative rules and drop prose, since Cursor and Windsurf work better with terse rule lists.
Do I need to edit the output?: Usually a quick review — each agent tool has quirks. For Cursor, keep rules imperative and under 2 lines each. For Copilot, first-person voice works best. For CLAUDE.md, include concrete commands. The output gets you 80% there; polish the rest.
Does it work with YAML frontmatter?: Yes. Frontmatter is preserved for markdown-based targets (CLAUDE.md, AGENTS.md, copilot-instructions.md) and dropped for flat rule files which don't support it.
Is this Karpathy-Skills or claude-doctor compatible?: Yes. Paste output from either and convert to your preferred format. The converter doesn't add behavioral rules itself — it restructures what you paste in. If you want a behavioral baseline, paste a known-good CLAUDE.md and convert down.

Related Tools

CLAUDE.md Reviewer

Paste your existing CLAUDE.md and get specific, numbered suggestions for vague rules, missing commands, repo boundaries, and token waste.

CLAUDE.md Generator

Describe your project in 1-2 sentences and get a structured CLAUDE.md. AI-powered by Amazon Nova Micro. Free, no login.

Improve My Prompt

Paste any LLM prompt and get specific, actionable fixes against 12 best-practice rules from Anthropic, OpenAI, and Google. Free, no login.

Markdown Editor

Free online Markdown editor with live preview. Write and preview Markdown in real-time with GitHub Flavored Markdown support.

About CLAUDE.md Converter

Convert agent configs between CLAUDE.md, AGENTS.md, .cursorrules, .github/copilot-instructions.md, and .windsurfrules. One file, every format. This tool runs entirely in your browser, so your content is not sent to a server. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.