Claude Code
by AnthropicAnthropic's agentic coding tool. It reads your codebase, edits files, runs commands and opens pull requests. It runs in the terminal, in VS Code and JetBrains, in the Claude desktop app (macOS, Windows; Linux in beta), on the web at claude.ai/code, and from the Claude mobile apps and Slack.
Good
- Runs on Claude Opus 5.5 and Sonnet 5.5, both with a 1M-token context window
- Same engine across terminal, VS Code, JetBrains, desktop app, web and mobile, sharing CLAUDE.md, settings and MCP servers
- Cloud sessions on the web keep running when your laptop is closed; scheduled tasks can run on a timer or on GitHub events
- Subagents and background agents can work on several parts of a task in parallel
- Extensible with MCP servers, skills, hooks and the Agent SDK
- Can review pull requests automatically through GitHub Actions or its GitHub Code Review integration
Watch out
- No free plan: Claude Code needs a paid Claude subscription or an API account
- Not an editor itself, so there is no built-in tab autocomplete while you type
- Heavy daily use pushes you toward the Max plan, which starts at $100/mo
- Only runs Anthropic's Claude models