Claude Code Companion

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

⸻ Built for developers who use Claude Code every day.

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