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Free Chrome extension that connects two browser tabs so Claude and ChatGPT can converse with each other on a chosen topic.
Watch out · Runs locally with your own logins; available for Chrome and Edge.
FreeWorks offline
What to know▼
How it works
A browser extension that connects a claude.ai tab and a chatgpt.com tab so the two AIs can discuss a topic you choose, with control over who starts, rounds, and reply length, in English or German.
Pricing
Free.
Watch out
Runs locally with your own logins; available for Chrome and Edge.
We check every product on this page once a day and record whether it still answers.
A portable personal profile file that any AI assistant can read with your permission, letting you revoke access from every connected AI at once, instead of your data staying locked inside one AI's memory.
Works offline
What to know▼
How it works
One portable file describes who you are; add it to an assistant in two minutes and revoke access with one tap, provably offline.
What's different
The most sensitive layer, how you behave under pressure, is never shared at any price.
We check every product on this page once a day and record whether it still answers.
A tool that lets you snip a screenshot and add one note, saving both as a file bundle an AI assistant can read directly, instead of retyping context for the AI each time.
FreeNo sign-upWorks offline
What to know▼
How it works
Snips a screen region, saves a note baked into the PNG metadata plus a Markdown sidecar and a rolling index file, and works fully offline with no account or telemetry.
Pricing
Free core; one-time $9.99 for Pro, no subscription.
We check every product on this page once a day and record whether it still answers.
An open-source, local-first shared memory layer that lets ChatGPT, Claude, Cursor, and other AI tools remember your preferences across apps.
Works offlineOpen source
What to know▼
How it works
Gives ChatGPT, Claude, Cursor, Gemini, Perplexity, and local models a shared private memory that lives on your machine, so preferences and context are stored once and portable across tools.
What's different
Open-source and local-first.
Best for
People who use multiple AI tools and want their memory to belong to them.