Claude Code Companion

About

The must-have Chrome extension for Claude Code and AI-assisted development.

Claude Code Companion puts everything you need at your fingertips — no more switching tabs, no more forgetting commands, no more guessing token costs.

CLAUDE.md Generator

Scaffold a professional CLAUDE.md file in seconds. Choose your project type (Next.js, React, Node.js, Python, iOS/Swift, or General) and get a complete, best-practices template with:

- Project overview structure
- Code style guidelines
- Architecture documentation
- Testing conventions
- Common commands
- Deployment instructions
- Important notes and pitfalls

Every template is based on real-world production patterns used by professional developers.

Token Counter

Paste any text and instantly see:

- Estimated token count (~4 chars/token approximation)
- Character, word, and line counts
- Visual context window usage bar (200K max) with color-coded zones (green/yellow/red)
- Cost estimates for Haiku 3.5, Sonnet 4, and Opus 4 models

Know exactly how much context you're using before you send.

Prompt Templates Library

8 battle-tested prompt templates with fillable variables:

- Code Review — thorough review with severity levels
- Bug Fix — systematic root cause analysis
- Feature Build — plan and implement new features
- Refactoring — improve code without changing behavior
- Write Tests — comprehensive test suite generation
- Documentation — clear, useful docs with examples
- Security Audit — OWASP-informed vulnerability scanning
- Performance — bottleneck analysis with complexity estimates

Each template has smart placeholders you fill in — then copy the complete prompt with one click.

Quick Reference

Complete Claude Code cheat sheet always one click away:

- All slash commands (/compact, /clear, /init, /review, etc.)
- Keyboard shortcuts
- CLI flags (--print, --model, --resume, etc.)
- Configuration file locations
- Tips and tricks for power users

Design

- Premium dark theme designed for developers
- Purple accent (#7c4dff) — distinctively AI-themed
- Clean, modern interface at 420x550px
- One-click copy for all generated content

Privacy First

- NO permissions required — fully self-contained
- NO data collection — everything runs locally in the popup
- NO network requests — works completely offline
- NO tracking — zero analytics, zero telemetry
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Built for developers who use Claude Code every day.

Free and open. If you find it useful, consider buying the developer a coffee.