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Why This Matters#

Until now, we’ve been using Claude Code through the terminal — the command line on your computer. But what if you want to work from your phone? Or you can’t install the program? Or you want to start a long task and check the result later?

That’s what the web version and cloud sessions of Claude Code are for — you get the same capabilities but through a browser or mobile device.

Ways to Use Claude Code#

Method What You Need For What
Terminal (CLI) Installation on computer Full control, working with local files
VS Code / JetBrains Editor extension Working right in the code editor
Desktop app Installation on computer Convenient interface, multiple sessions
Web version Just a browser Working from any device

Web Version: claude.ai/code#

What It Is#

The web version of Claude Code runs right in the browser at claude.ai. You can use Claude Code without installing anything — all you need is a Claude subscription.

How to Start#

  1. Open claude.ai in your browser
  2. Sign in to your account
  3. Select Claude Code mode
  4. Start working — you can upload files or connect a repository

What You Can Do#

  • ✅ Write and edit code
  • ✅ Upload project files
  • ✅ Launch cloud sessions (see below)
  • ✅ View work results
  • ✅ Work with multiple sessions simultaneously

Cloud Sessions#

What They Are#

A cloud session is when Claude Code runs not on your computer but on Anthropic’s servers (the company that created Claude). It’s like running a task on a remote computer.

💡 Cloud — other people’s computers that work somewhere on the internet. You don’t see them physically, but you can use their power.

Why Cloud Sessions Are Useful#

  • Long tasks: started a large project refactoring, closed your laptop, came back — everything’s done
  • Power: cloud servers can be more powerful than your computer
  • Mobility: started from your phone, checked the result from your computer

How to Start a Cloud Session#

From the terminal:

claude --cloud

Or from the web interface — click the cloud session launch button.

How to Check a Cloud Session#

You can return to a cloud session at any time:

claude --resume

Select the cloud session you need from the list.

Working from Your Phone#

Through the Browser#

  1. Open claude.ai in your mobile browser (Safari, Chrome)
  2. Sign in to your account
  3. Work as usual

What’s Convenient to Do from Your Phone#

  • ✅ Check cloud session status: “Did Claude finish the refactoring?”
  • ✅ Give a quick instruction: “Fix the bug in login.js”
  • ✅ View work results
  • ✅ Start a new task

What’s Better Done from a Computer#

  • Working with many files
  • Detailed code review (uncomfortable on a small screen)
  • Project setup (CLAUDE.md, settings.json)

Desktop Application#

Claude Code is also available as a standalone application for macOS and Windows.

Advantages of the Desktop App#

  • Multiple sessions in separate tabs
  • Convenient visual diff viewer for code changes
  • Quick launch without a terminal
  • Cloud session support

How to Install#

  • macOS: download from claude.ai (works on Intel and Apple Silicon)
  • Windows: download the installer from claude.ai

Cross-Device Synchronization#

One of the key strengths — the ability to start on one device and continue on another:

--- Morning on your computer ---
You: Refactor all files in the src/components/ folder
Claude: Starting... (this will take a while)

--- Afternoon from your phone ---
You: /resume
(select the session)
You: How's the refactoring going?
Claude: Done! Updated 15 files. Here's what changed...

--- Evening on your computer ---
You: /resume
You: Show all changes and create a commit

Practical Example: A Full Workday#

🌅 Morning (computer, terminal)
- Opened the project, set up CLAUDE.md
- Started a large refactoring in a cloud session

🚇 Commute (phone, browser)
- Checked status — refactoring at 80%
- Gave an additional instruction

🏢 Office (work computer, web version)
- Reviewed the finished result
- Requested a code review
- Ran tests

🌙 Evening (home computer, desktop app)
- Reviewed all changes
- Created a commit and pushed to Git

Requirements and Subscription#

To use Claude Code, you need one of:

  • Claude subscription (claude.ai) — Pro, Team, or Enterprise
  • Anthropic Console account — for developers with pay-per-use billing

Tips#

  • ✅ Use cloud sessions for long tasks — no need to keep your computer on
  • ✅ From your phone, it’s convenient to check status and give quick instructions
  • ✅ Name sessions clearly (/rename) — easier to find the right one from any device
  • ✅ Try the desktop app if you don’t like the terminal
  • ⚠️ For working with local files, you need the terminal or desktop app — the web version works with the cloud

Lesson Summary#

  • Claude Code is available through terminal, code editors, desktop app, and web browser
  • Cloud sessions let you run tasks on Anthropic’s servers and check them from any device
  • From your phone, it’s convenient to check status and give quick instructions
  • You can start work on one device and continue on another via /resume
  • A Claude subscription or Anthropic Console account is required