PortSmith

Move your AI setup between ChatGPT, Claude and Gemini: projects, GPTs, Gems, files and memory. Private and in-browser.

Switching AI assistants shouldn't mean starting from scratch. If you've built custom GPTs or projects in ChatGPT, projects in Claude, or Gems in Gemini, you know how much work goes into them. PortSmith moves that setup to another assistant, so you can switch or use more than one without rebuilding everything by hand. WHAT PORTSMITH MOVES - From ChatGPT: custom GPTs, projects with their instructions and knowledge files, saved memories and custom instructions - From Claude: projects with their instructions, knowledge documents and project memory, plus your memory outside projects and your "Instructions for Claude" preferences - From Gemini: Gems with their instructions - Project memory: what the assistant learned from chats inside a project comes along as a document in the new project WHERE IT CAN GO - Into Claude, automatically: PortSmith creates each project, sets the instructions, uploads the files and adds the project memory, then checks the result - Into Gemini, automatically: PortSmith creates each Gem and adds the files and project memory to its knowledge - Into ChatGPT, step by step: PortSmith shows each step with copy and download buttons Your saved memories and custom instructions go into Gemini automatically (as "Your instructions for Gemini"), or through Claude's own memory import in one paste. HOW IT WORKS 1. Read: open your current assistant in a tab. PortSmith reads your setup through the site's own interface, using the account you're already signed in to. 2. Review: see everything it found, choose what to move, and edit instructions or project memory first. 3. Move: pick automatic, step-by-step, or automatic with a confirmation before each item. Anything PortSmith can't do for you becomes a clear manual step, with the text to copy and the files to download. At the end you get an honest summary: what was created, what was checked, and what still needs you. PRIVATE BY DESIGN - Runs entirely in your browser. PortSmith has no servers. - No analytics, tracking or ads. - No sign-up and no API keys. - Your data only travels between your browser and the assistants you already use. - One click deletes everything PortSmith saved. SAFE TO STOP AND RESUME PortSmith records its progress as it goes. If the browser closes mid-migration, it picks up where it left off and never creates the same project twice. GOOD TO KNOW - Chat history doesn't move. - GPT Actions, image generation and other platform-specific tools can't be copied. PortSmith points these out. - Gemini's memory import isn't available in every country or for every account type.