Desktop app for managing multiple Claude Code configuration profiles.

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C2 is an Electron app that lets you switch between multiple Claude Code configurations — API keys, auth tokens, base URLs, model overrides, and advanced settings — without manually editing ~/.claude/settings.json.

• Fully local, no fuss — Runs entirely on your machine, no network required, no background process.
• Multiple profiles — Store unlimited credential profiles.
• One-click switching — Safely rewrite ~/.claude/settings.json with automatic backups (last 5 kept).
• Managed env keys — ANTHROPIC_API_KEY, ANTHROPIC_AUTH_TOKEN, ANTHROPIC_BASE_URL, model overrides (Haiku / Sonnet / Opus), and advanced Claude Code flags.
• Preserves unmanaged settings — Any keys C2 doesn't manage are left untouched, so you can still edit them manually.
• Backup & restore — Restore any of the last 5 settings snapshots in one click.

C2 writes these env keys in ~/.claude/settings.json:

Download the latest installer for your platform from the Releases page:

• macOS — .dmg (arm64 or universal) or .zip
• Windows — Squirrel installer (.exe)
• Linux — .deb

Or use Homebrew:

brew install geekdada/tap/c2 --cask
xattr -d com.apple.quarantine /Applications/C2.app

• ~/.config/c2-app — Config directory
• ~/.claude/settings.json — Claude Code settings (managed target)

Requires Node.js 20+ and pnpm 10+.

pnpm install
pnpm dev          # Start Electron (hot-reload)
pnpm typecheck    # TypeScript strict check
pnpm lint         # oxlint
pnpm format       # oxfmt
pnpm test         # Unit tests (vitest)
pnpm test:e2e     # Playwright e2e tests
pnpm make         # Build distributable installers

Run a single test file: pnpm vitest run path/to/file.test.ts

• Shell: Electron 41 + Electron Forge + Vite
• UI: React 19, React Router, Zustand, HeroUI v3, Tailwind CSS v4
• Forms & validation: TanStack React Form + Zod
• Tests: Vitest (jsdom) + Playwright

MIT