Context Cost Explorer

Diagnose how Claude Code spends its tokens

Drop a project folder anywhere on this page

Or drop one session: its .jsonl file together with the folder of the same name, so subagents are included.

Files are read by your browser and never uploaded. In Finder, ⌘⇧. shows the hidden .claude folder.

~/.claude/projects/<project>/
├── <session-id>.jsonl              # main conversation
└── <session-id>/
    └── subagents/
        ├── agent-<id>.jsonl        # one per subagent
        └── agent-<id>.meta.json    # its agent type