Developer Guide
Claude Chat vs Claude Code
Claude Chat and Claude Code use the same Claude family idea in two different places. Claude Chat is where you think, write, compare, and explore. Claude Code is where you bring that reasoning into a local development workflow.
Short answer
Use Claude Chat when the work is mostly conversation: research notes, product thinking, explanations, copy, data analysis, or code snippets. Use Claude Code when the work belongs inside a repository: tracing files, planning a change, editing code, running checks, and reviewing diffs.
Comparison
Claude Chat vs Claude Code
| Feature | Claude Chat | Claude Code |
|---|---|---|
| Primary interface | Claude.ai in the browser, desktop app, or mobile app. | A command line tool that runs inside your terminal. |
| Best use | Writing, research, brainstorming, analysis, planning, and general Q&A. | Repository-aware coding work: reading files, editing code, running commands, and helping move a task through implementation. |
| Project context | You provide context by typing, attaching files, or pasting snippets. | It can inspect the local project you launch it from, subject to permissions and settings. |
| Workflow style | Conversational and document-oriented. | Task-oriented and terminal-native, useful for iterative development loops. |
| Setup required | Create or sign in to a Claude account and start a conversation. | Install the CLI, authenticate, open a project folder, then run `claude`. |
| Outputs | Explanations, drafts, summaries, code examples, tables, and plans. | Code changes, command output analysis, refactors, tests, and implementation guidance. |
| Human control | You decide what to copy, run, or apply. | You review tool use, permissions, diffs, and command execution while it works in your repository. |
| Subscription path | Free and paid Claude plans are used through Claude.ai. | Can authenticate through Anthropic Console billing, Claude Pro or Max, or enterprise platforms. |
How to choose
Choose Claude Chat for
- Explaining concepts before you open the codebase.
- Drafting blog posts, docs, emails, proposals, and reports.
- Comparing tools, architecture options, and tradeoffs.
- Analyzing pasted snippets or uploaded reference files.
Choose Claude Code for
- Understanding a repository without manually pasting files.
- Making scoped edits while keeping diffs visible.
- Running test, lint, build, or debug commands in context.
- Working through multi-file implementation tasks from the terminal.
Install
Claude Code setup guide
- 01Confirm your machine meets the basics: macOS 10.15+, Ubuntu 20.04+/Debian 10+, or Windows 10+ with WSL or Git for Windows; Node.js 18+; at least 4GB RAM; and an internet connection.
- 02Install Claude Code with `npm install -g @anthropic-ai/claude-code`. Anthropic advises against using `sudo npm install -g` because it can create permission and security issues.
- 03Run `claude doctor` after installation to check the install type, version, and common configuration problems.
- 04Move into the project you want Claude Code to help with, for example `cd your-project`.
- 05Start an interactive session with `claude`.
- 06Authenticate with the option that fits your account: Anthropic Console, a Claude Pro or Max plan, or an enterprise setup through Amazon Bedrock or Google Vertex AI.
- 07Try a small first task, such as asking Claude Code to explain the repository structure or inspect a failing test before asking it to edit files.
npm install -g @anthropic-ai/claude-code
claude doctor
cd your-project
claudeEveryday workflow
A useful pattern is to start in Claude Chat for broad thinking, then move to Claude Code when the work becomes concrete. For example, you might ask Claude Chat to compare implementation approaches, then ask Claude Code to inspect the actual repository and apply the chosen approach.
claude "explain this project structure"
claude "find the files involved in the login flow"
claude -p "summarize the current git diff"Practical setup notes
- Open Claude Code from the repository root so it sees the right project context.
- Start with read-only questions before asking it to edit important files.
- Review diffs and command output the same way you would review a teammate's work.
- Use `claude update` when you want to manually update the CLI.
- Use Claude Chat for sensitive summaries or planning when you do not need local file access.