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wtf is repomix?

fengmk2/repomix — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2026-01-15

Audience · vibe coderComplexity · 1/5QuietSetup · easy

TL;DR

Packages your entire codebase into one AI-friendly file so you can paste your whole project into ChatGPT or Claude at once.

Mindmap

mindmap
  root((repo))
    What it does
      Bundles codebase
      Respects gitignore
      AI ready format
    Tech stack
      Node.js
      CLI tool
      VSCode plugin
    Use cases
      Code review
      Generate tests
      Write docs
    Audience
      Vibe coders
      Developers
      Contributors
    Safety
      Secret detection
      Token counting

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

Why would anyone build with this?

REASON 1

Paste your whole codebase into ChatGPT or Claude to ask questions about it.

REASON 2

Ask an AI to review your code architecture in one go.

REASON 3

Generate missing tests or documentation for an existing project.

REASON 4

Quickly onboard an open-source project you want to contribute to.

What's in the stack?

Node.jsCLIVSCode ExtensionBrowser Extension

How it stacks up

fengmk2/repomix0verflowme/alarm-clock0verflowme/seclists
LanguageCSS
Last pushed2026-01-152022-10-032020-05-03
MaintenanceQuietDormantDormant
Setup difficultyeasyeasyeasy
Complexity1/52/51/5
Audiencevibe codervibe coderops devops

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 5min

Requires Node.js to run via npx, no other install needed.

Not stated in the explanation.

Wtf does this do

Repomix solves a common problem when working with AI assistants: getting your entire codebase into a conversation. Instead of copying and pasting individual files or struggling to explain your project structure, Repomix packages everything into a single file that AI tools like Claude or ChatGPT can understand quickly and thoroughly. Here's how it works. You run a simple command in your project directory, and Repomix reads through all your code files, respects your .gitignore settings so it doesn't include unwanted files, and bundles everything into one organized file. That file is formatted in a way that makes it easy for AI to parse and understand, think of it like preparing your code for an AI conversation the same way you'd organize documents before giving them to a colleague. You can then paste this single file into ChatGPT, Claude, or any other AI tool along with your question, and the AI has full context about your codebase. The tool is genuinely simple to use. If you have Node.js installed, you can run it without even installing anything by typing npx repomix@latest in your project folder. Or you can use the website at repomix.com, a browser extension for GitHub repositories, or even a VSCode editor plugin if you prefer a graphical interface. You can customize what gets included or excluded, count how many tokens your codebase will use (important for staying within AI model limits), and even compress the output to make it smaller. People use this for practical tasks: asking an AI to review their code architecture, generate missing tests, write documentation, or help with refactoring. Developers also use it to analyze open-source projects they want to contribute to, or to quickly onboard the codebase into discussions with collaborators. The project includes built-in security checks to prevent accidentally including secrets or passwords in your output file, an important safeguard when sharing code with AI services.

Yoink these prompts

Prompt 1
Run npx repomix@latest in my project, then review the packaged output and suggest architecture improvements.
Prompt 2
Use the Repomix output of my codebase to write missing unit tests for the core modules.
Prompt 3
Analyze this Repomix-packaged codebase and write onboarding documentation for a new contributor.
Prompt 4
Check this Repomix output for any refactoring opportunities to simplify the code.

Frequently asked questions

wtf is repomix?

Packages your entire codebase into one AI-friendly file so you can paste your whole project into ChatGPT or Claude at once.

Is repomix actively maintained?

Quiet — no commits in 6-12 months (last push 2026-01-15).

What license does repomix use?

Not stated in the explanation.

How hard is repomix to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is repomix for?

Mainly vibe coder.

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