Claude XML Prompt Formatter

Turn labeled prompt notes into escaped XML sections that are easier to paste into Claude workflows.

Also useful for: claude xml prompt claude prompt formatter xml prompt formatter anthropic xml prompt Claude XML Prompt Formatter

Claude XML Prompt Formatter

Runs in your browser. Inputs are not uploaded.
Input
Results
Summary: 3 XML sections formatted for Claude-style prompting.

Stats
- Sections: 3

Issues
- No issues found.

Output
<system>
You are a careful analyst.
</system>

<context>
The customer runs an ecommerce feed with missing images and duplicate SKUs.
</context>

<task>
Summarize the feed issues in priority order.
</task>

Claude XML Prompt Formatter Example Run

Turn labeled prompt notes into XML sections.

Sample inputs
system: You are a careful analyst.
context: The customer runs an ecommerce feed with missing images and duplicate SKUs.
task: Summarize the feed issues in priority order.

Generated result
Summary: 3 XML sections formatted for Claude-style prompting.

Stats
- Sections: 3

Issues
- No issues found.

Output
<system>
You are a careful analyst.
</system>

<context>
The customer runs an ecommerce feed with missing images and duplicate SKUs.
</context>

<task>
Summarize the feed issues in priority order.
</task>

What the Claude XML Prompt Formatter Checks

  • Labeled sections

    Lines shaped like label: value start a new XML section.

  • Safe tag names

    Labels are normalized into lowercase XML-friendly tag names.

  • XML escaping

    Special characters inside section text are escaped so copied prompts stay well-formed.

  • Multi-line content

    Unlabeled continuation lines stay inside the current section.

  • Prompt-only formatting

    The tool formats text; it does not send the prompt to Claude or score prompt quality.

Claude XML Prompt Formatter Questions

  • Q: Does the Claude XML prompt formatter upload my prompt? A: No. Inputs are processed in your browser, and pasted content is not sent to analytics or a server.
  • Q: What should I paste into the Claude XML prompt formatter? A: Paste labeled lines such as system:, context:, examples:, and task:. Multi-line content after a label is kept in that section.
  • Q: What can I copy or download? A: You can copy or download the formatted XML prompt block.
  • Q: What does the Claude XML prompt formatter not verify? A: It does not choose the best prompt structure, validate Claude output, or enforce every XML schema rule.

Related Tools

Updates

  • v1.0.0 New 2026-05-17: Initial labeled-section parser and escaped XML prompt formatter added.

Use Claude XML Prompt Formatter with an LLM

Copy the prompt or pass the llms.txt contract link to your assistant.

Prompt
Use the CleanUtils Claude XML Prompt Formatter tool for this request.
Tool contract: https://cleanutils.com/developer-tools/claude-xml-prompt-formatter/llms.txt

Read the llms.txt contract, ask me for any missing required input, then follow the contract exactly. If the contract includes JavaScript, run `runCleanUtilsTool(userInput)` in a sandboxed JavaScript runtime and return the result with any warnings or errors.