claude-config-editor

Claude Config Editor is a lightweight web tool that solves the problem of bloated .claude.json configuration files that slow down Claude Code and Claude Desktop. It provides a visual interface to analyze which projects are consuming disk space, bulk delete old chat histories, export conversations before deletion, and manage MCP servers without manual JSON editing. The tool runs entirely locally on localhost:8765 with zero dependencies, auto-backups before every save, and supports macOS, Linux, and Windows across both Claude Code and Claude Desktop installations. Users can reduce 10+ MB configs to under 1 MB in minutes, improving startup performance and responsiveness.

[{"step":"Install and launch the Claude Config Editor from [https://claudeconfig.dev](https://claudeconfig.dev). No installation required - runs in your browser.","tip":"Use the desktop app version for better file system access if working with large projects."},{"step":"Load your config file by either dragging the .claude.json file into the editor or using the 'Open File' button. The tool will automatically analyze your current setup.","tip":"Make sure to close all Claude applications before editing the config file to prevent conflicts."},{"step":"Review the optimization suggestions in the 'Analysis' tab. Use the 'Preview Changes' feature to see what will be modified before applying them.","tip":"Pay special attention to the 'Performance Impact' estimates - these help prioritize which optimizations to apply first."},{"step":"Apply the optimizations and let the tool generate your cleaned-up config file. Use the 'Export Backup' feature to save your current chat history to a safe location.","tip":"Always export a backup before making changes, especially when bulk-deleting chat histories."},{"step":"After applying changes, restart Claude and verify that all your projects and settings work as expected. Monitor performance improvements over the next few days.","tip":"Use the 'Compare Versions' feature to track changes between your original and optimized configs."}]