Lorebox is a browser based tool for organizing conversations from ChatGPT and Claude. It saves chats that users open and presents them in a searchable library. Search covers chat titles and message text across both services, with matching text highlighted. Users can organize chats into folders, add tags, and filter results by tag. Chats can be imported in bulk from official ChatGPT or Claude data export files, which Lorebox reads on the user’s device. The tool also supports exporting individual chats or folders as Markdown, preserving code blocks. PDF export is available with the Pro plan. The free plan includes up to five folders, tags, and search across the latest 100 chats; Pro adds unlimited folders and search across all chats. Lorebox reads content visible on the page when a chat is opened and does not use the services’ internal APIs or request account passwords. On the free plan, chats, folders, and tags are stored on the user’s device. Pro sync is optional and uses end to end encryption with a passphrase known only to the user. The browser panel can be opened with Alt+S, or Option+S on Mac, and its command interface with Ctrl+K, or Cmd+K on Mac.