Powered by Claude

Refactor any code — and know why, instantly.

Code Studio is an AI Refactor Assistant. Paste code in any language and get concrete, idiomatic refactoring suggestions — each led by a built-in one-line explanation of why it should change. One AI call gives you both the why and the how.

🔑 Bring your own Anthropic API key — your code and key stay yours.

Refactor first. Understand instantly.

One core engine does the heavy lifting — and explains itself in the same breath.

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Refactor Assistant core

The engine. Concrete, idiomatic suggestions for readability, correctness, and performance — each with a short rationale and an example snippet. This is the product.

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Built-in explanation lite

Every refactor opens with a plain-language, 1–2 sentence summary of what the code does and why it should change — no separate step, no extra call. The same AI that refactors tells you why.

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Document

Need docs too? Generate comments in the language's conventional style — JSDoc, docstrings, Javadoc — plus a module overview.

Available everywhere you work

One engine, wrapped for each platform. Install the one you need — each is bring-your-own-key.

How it works

  1. 1

    Install & add your key

    Grab Code Studio for your platform and paste your Anthropic API key. Get one at console.anthropic.com.

  2. 2

    Select or paste code

    Highlight a snippet, open a file, or paste into the box — any language.

  3. 3

    Refactor — and read the why

    Claude streams back a one-line "why refactor" summary followed by concrete suggestions, right where you're working. (Prefer docs? Hit Document.)

Code Studio has no server of its own. Requests go straight from your device to the Anthropic API using your key — nothing is stored or proxied.