Home > Blog > Reuse Prompts Across ChatGPT, Claude & Gemini
You wrote a great prompt in ChatGPT last week. Today you're in Claude because it's better at the long-document task in front of you, and you need that exact prompt again. So you tab back to ChatGPT, scroll through chat history, find it, copy it, tab back to Claude, paste it. Multiply that by every prompt you actually rely on, and by every AI tool you now use in a normal week — ChatGPT for drafting, Claude for editing, Gemini because it's in your Workspace tab, Perplexity for research — and you've built yourself a part-time job of manually shuttling text between browser tabs.
This is the copy-paste tax, and once you notice it you can't unsee it. Here's why it happens, why each AI tool's own "saved prompts" feature can't fix it, and how to build one portable prompt library that works the same way in every AI chat you use.
Most people's best prompts aren't lost — they're just trapped. They live in one specific ChatGPT conversation, one Claude Project, one Google Doc you meant to organize, or a Notes app entry from three months ago titled "prompts (2)". The prompt itself is fine. The problem is retrieval, and retrieval gets worse in direct proportion to how many AI tools you use.
Ten years ago this wasn't a problem because there was one tool. In 2026 the reasonable default is multiple: a reasoning-heavy model for one job, a fast model for another, whichever tool your team standardized on for a third. Every switch between tools resets your prompt library to zero, because none of these apps know the others exist. The tax shows up as:
Most major AI tools have shipped some version of "save this for later" by now, and it's worth being clear about what these features actually are — because it's not a portable prompt library.
The pattern across all of them: each AI company builds prompt-adjacent features to make their own product stickier, not to make your workflow portable. That's a completely reasonable business decision on their part — and exactly why the fix has to live somewhere none of them control: your own browser.
A cross-model — or cross-platform — prompt library is simply one collection of your saved prompts that isn't owned by any single AI vendor. Instead of living inside ChatGPT's memory or a Claude Project, it lives in a layer that sits underneath all of them: your browser. Practically, that means:
This is the same idea as a cross-platform prompt manager — the difference from a single-app "prompts" tab isn't cosmetic, it's structural: the library is decoupled from the app you happen to be typing into right now.
The fastest implementation of this idea is a browser extension that watches the text box you're already typing in and gives you a trigger to summon your library without leaving it. In PromptDock, that trigger is //:
No new tab, no copy button, no "where did I save that" moment. It's the same two seconds whether you're in ChatGPT at 9am or Gemini at 4pm, because the palette doesn't care which site it's running on — it's reading from the same local library either way.
{{variable}} — e.g. "Write a cold email to {{name}} about {{product}}" — so one saved prompt becomes an unlimited number of ready-to-fill ones.That's the whole setup. From here, every AI chat you open already has your full library one // away — see the full walkthrough of the slash-command workflow if you want the details on filtering, pinning, and the keyboard shortcut.
Stop rebuilding the same prompt five times a week. PromptDock saves your prompts locally — no account, nothing uploaded — and inserts them with // in ChatGPT, Claude, Gemini, Perplexity, DeepSeek, Grok, Copilot, Mistral, Poe and AI Studio. Free to start, and every install unlocks all Pro features free for 7 days. Add to Chrome — it's free →The obvious worry with "store it locally, no account" is: what happens on my second computer? Two honest answers, neither of which requires handing your prompt library to a new server:
Either way, the underlying design principle holds: your prompts are a file you own, not a row in someone else's database. That matters more than it sounds — a 2026 privacy review found the majority of AI-adjacent browser extensions collect and transmit user data by default. Local-first, account-free storage isn't a minor feature, it's the reason a prompt library is safe to actually put your work into.
Not through either app natively — each keeps its saved prompts and memory features to itself. A cross-platform prompt manager extension stores one library locally on your device and makes it available inside both ChatGPT and Claude, plus Gemini, Perplexity, DeepSeek, Grok, Copilot, Mistral, Poe and AI Studio.
They have single standing profiles — Gemini's saved info, Claude's Project instructions — not a searchable library of many named, reusable prompts you insert on demand.
One collection of your saved prompts, organized in folders and tags, available inside every AI chat tool you use — instead of copy-pasted from a notes app or locked inside one app's own memory feature.
It's safer than scattering them across five apps' histories, provided the library is stored locally rather than uploaded to a server. Look for local-only storage, no required account, and export as a real JSON backup.
Export as JSON and import on the second machine, or use an extension whose sync rides on Chrome's own built-in sync between browsers signed into the same Google account — no new account needed with the extension maker.
For the deeper dive into every method people use to hold onto prompts — including the ones that don't scale past one AI tool — see how to save ChatGPT prompts: the complete guide, or browse the best AI prompt managers of 2026 if you're comparing tools before you commit. If you just want prompts to try right away, there's also a free set of 50 ChatGPT prompts you can drop straight into your new library.