[BUG] Claude code intellij plugin not able to open the diff view

[chensiiLiu]

Preflight Checklist

• I have searched existing issues and this hasn't been reported yet
• This is a single bug report (please file separate reports for different bugs)
• I am using the latest version of Claude Code

What's Wrong?

No diff view popped up in Intellij when making changes in a Claude Code session opened in Intellij by clicking the Claude code icon in Intellij. Can only see the diff in terminal UI.

Tried all suggestions from Claude code but it still did not work

  1. Make sure the Claude Code plugin is installed in IntelliJ: Go to
  Settings → Plugins → search "Claude Code" → verify it's installed and
  enabled. Restart IntelliJ fully after installing.
  2. Run Claude from IntelliJ's integrated terminal: Instead of connecting
  via /ide from an external terminal, try opening IntelliJ's built-in
  terminal and running claude directly from there. This is the most reliable
   way for the IDE to detect Claude.
  3. Check the diff tool setting: Inside Claude Code, run /config and make
  sure the diff tool is set to auto.
  4. Verify the Claude command path: In IntelliJ go to Settings → Tools →
  Claude Code [Beta] and make sure the Claude command field points to the
  right path (e.g., claude or /usr/local/bin/claude).
  5. Full IDE restart: Not just closing the window — fully quit and reopen
  IntelliJ.

System: Mac OS
Claude Code version: 2.1.62

What Should Happen?

Claude should open a side-by-side diff view window in Intellij

Error Messages/Logs

Steps to Reproduce

1. Click the Claude Code icon in Intellij
2. Ask Claude to make some changes
3. After the change is done, Claude will show the diff change in terminal UI, but no Intellij window is opened.

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

No response

Claude Code Version

2.1.62

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

No response

[github-actions]

Found 3 possible duplicate issues:

1. Intellij diff editor not being used... TUI diffs only. Windows 11. #23192
2. [BUG] Claude Code unable to connect to PyCharm by using the dedicated Plugin or via PyCharm's terminals #13301
3. [BUG] Rider: No visual diff previews in editor - SSE connection not established #11180

This issue will be automatically closed as a duplicate in 3 days.

• If your issue is a duplicate, please close it and 👍 the existing issue instead
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🤖 Generated with Claude Code

[chensiiLiu]

#23192

This issue is similar but on Windows OS and in stale status, so I'm keeping this ticket open and not let it closed as duplicated.

[github-actions]

Closing for now — inactive for too long. Please open a new issue if this is still relevant.

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.