AI coding assistant

The AI coding assistant in your browser

Explain, debug, write, review, convert and optimize code — plus unit tests, regex, SQL and docs. Muse is a coding copilot in Chrome’s side panel, next to your docs, GitHub and Stack Overflow tabs.

Free plan · 2 requests a dayNo account neededChats stay in your browser
Muse AI coding assistant in Chrome side panel
11 coding tools

Pick a task. Paste. Ship.

Every tool has its own prompt tuned for the job, so you get a focused answer — not a wall of text. Or choose Auto and Muse picks the best approach.

See it work

Bug in, fix out — with the why

Muse explains the cause in one line, gives a corrected version and keeps the formatting copy-ready.

  • Syntax-highlighted code blocks
  • One-click copy
  • Follow-ups keep the context
Muse · Code · Debug · Python
TypeError: unsupported operand type(s) for +: 'int' and 'str'
total = 0
for row in rows:
    total += row["price"]
Some price values are strings (for example "19.99"). Convert them before adding:
total = sum(float(row["price"]) for row in rows)
Code mode

A coding copilot that stays out of your way

Code mode adds a Task picker and a Language picker to the composer. Choose them once and keep pasting — Muse remembers your choice.

  • Task: Auto, Explain, Debug, Write, Review, Convert, Optimize, Tests, Regex, SQL, Docs
  • Language: Auto or one of 19 languages and frameworks
  • Muse Smart for complex debugging and reviews
  • Open in full window for big files
Muse coding tasks menu
Languages

Works with the stack you use

Pick a language or leave it on Auto — Muse detects it from your code.

JavaScriptTypeScriptPythonJavaC#C++GoRustPHPRubySwiftKotlinDartSQLHTML/CSSReactVueNode.jsBash
FAQ

Coding questions

Is Muse a good AI coding assistant for beginners?

Yes. Explain mode walks through code line by line in plain words, and Debug explains why an error happens before showing the fix.

Which programming languages does Muse support?

JavaScript, TypeScript, Python, Java, C#, C++, Go, Rust, PHP, Ruby, Swift, Kotlin, Dart, SQL, HTML/CSS, React, Vue, Node.js and Bash — or Auto to detect it.

Does Muse run my code?

No. Muse reads the code you paste and answers with explanations and code. It doesn’t execute anything — always test changes in your own environment.

Can Muse read code from a web page?

Yes. Turn on “This page” on a docs page or GitHub file, select code and right-click “Explain this code”, or capture code from a video with Capture area.

Is my code stored?

No. Code you send is processed to generate the answer and not stored on Muse servers. Your chat history stays in your browser.

Ship cleaner code today

Add Muse to Chrome and get 2 free coding requests every day. Go unlimited with Muse Pro.