CTF Writeup Generator

Turn solve notes, tool output, and scattered observations into a clean, publishable CTF writeup. Good writeups teach. Great writeups show the wrong turns too.

What You Need Before Starting

Ask if not provided:

• Challenge name, category, and point value
• CTF event name and date
• The flag (for confirmation)
• Key steps taken to solve it — notes, commands, payloads used
• Any wrong turns worth documenting

Writeup Structure

Header

# [Challenge Name] — [CTF Event Name]
**Category:** [Web / Pwn / Crypto / Forensics / OSINT / Misc]
**Points:** [value]
**Difficulty:** [as rated by organizer or personal assessment]
**Flag:** [flag{...}]

Challenge Description

Paste the original challenge text or summarize it in 2-3 sentences. What was given? (URL, binary, file, hint?)

Initial Analysis

What did you notice first? What tools did you use to understand the challenge? Keep it honest — include the first (wrong) hypothesis if it's instructive.

Solution Walkthrough

Step-by-step. Number the steps. Show every command, payload, or key observation.

# Show actual commands
curl -X POST https://target/endpoint -d "param=payload"

Explain why each step worked — not just what happened. That's what makes a writeup worth reading.

Key Insight

One paragraph: what was the core trick? What would someone need to know to solve this without your writeup? This is the part other players will search for.

Flag

flag{the_actual_flag_here}

Takeaways (optional)

What did you learn? What tool or technique was new? What would you do differently?

Rules

• Show real commands and payloads — vague writeups help nobody
• Include wrong turns when they illustrate a useful lesson
• Keep the tone direct and technical — this is for peers, not a marketing audience
• If the challenge involves a CVE or known technique, name it and link to the reference
• Never publish writeups for active competitions where sharing is prohibited