ChatGPT prompt library
Stop pasting the same prompt structure into ChatGPT every time. GPT Master adds a Prompt Library inside chatgpt.com: type // in the composer, pick a saved prompt, and it drops into the input ready to send.
4,000+ users · 4.8★ on the Chrome Web Store · Free to install
Updated
Type // in the ChatGPT composer, filter saved prompts live, hit enter to insert.
Quick answer
ChatGPT does not have a built-in prompt library. Reusable prompts get stored in a notes app or Notion and pasted from memory, which slows every session. The GPT Master Prompt Library lives inside chatgpt.com: save a prompt once, then type // in the composer to open a searchable palette and insert it. Saved prompts are stored locally in your browser's extension storage, so they survive across sessions on the same machine.
Compared to the alternatives
Most ChatGPT power users have a system for storing prompts they want to run again. Each one costs something on every reuse.
| Approach | Lives inside ChatGPT? | Inserts in one move? | Searchable as you type? | Survives the session? | Tradeoff |
|---|---|---|---|---|---|
| Retype from memory | ✓ | ✗ | ✗ | ✗ | Subtle phrasing changes drift the output. Slow on long prompts. |
| Copy from a notes app or Notion | ✗ | ✗ | ✗ | ✓ | Searchable, but in a separate tab. Tab switch on every reuse, easy to grab the wrong version. |
| ChatGPT Custom GPTs or Projects starter prompts | ✓ | ✗ | ✗ | ✓ | Locked to one Custom GPT or Project. Starters live above the composer, not as a searchable inline palette across every thread. |
| Browser autofill or text expander | ✓ | ✓ | ✗ | ✓ | No live filter, no organization layer. Triggers fire by accident outside ChatGPT. |
| GPT Master Prompt Library | ✓ | ✓ | ✓ | ✓ | Free tier has a cap on saved prompts. |
Tradeoff · Subtle phrasing changes drift the output. Slow on long prompts.
Tradeoff · Searchable, but in a separate tab. Tab switch on every reuse, easy to grab the wrong version.
Tradeoff · Locked to one Custom GPT or Project. Starters live above the composer, not as a searchable inline palette across every thread.
Tradeoff · No live filter, no organization layer. Triggers fire by accident outside ChatGPT.
Tradeoff · Free tier has a cap on saved prompts.
What this looks like in practice
A consultant runs the same synthesis prompt every Monday across five active client threads. The prompt is 300 words long, with placeholders for client name, focus area, and the week's artifacts. Before GPT Master, each Monday meant opening Notion, finding the prompt, pasting it five times, and editing the placeholders by hand. With the Prompt Library, the consultant types // synth in the ChatGPT composer, the matching prompt fills the input, and editing the three placeholders is the only manual step. The Monday ritual drops from twenty minutes of plumbing to five minutes of real thinking.
Frequently asked
These questions cover fit, workflow, and what to expect before installing GPT Master, so people can understand the feature in practical terms before clicking through to the Chrome Web Store.
Save a prompt with a short name inside the extension. In any ChatGPT composer, type // to open the palette. The list filters as you keep typing. Press enter to insert the full prompt into the composer, then send or edit as normal.
In your browser's extension storage on the machine where you installed GPT Master. Prompts are not uploaded to a GPT Master server, and they do not appear in your ChatGPT account or in any prompt the model has trained on.
Not in folders. Prompts are named and editable inside the extension, and the // palette filters live as you type, so a clear naming convention is usually enough to find the right prompt fast.
Yes, with a cap on the number of saved prompts on the free tier. Heavy users can lift the cap with GPT Master Pro from inside the extension.
Save a prompt once, hit // to reuse it everywhere.
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