# PromptMaster: Universal AI Prompt Optimizer

> Optimize any AI prompt in 1 click. Works with ChatGPT, Claude, Gemini, DeepSeek, Copilot & Perplexity. Free.

Canonical page: [https://chrome-stats.com/d/promptmaster](https://chrome-stats.com/d/promptmaster)

## Overview

- **ID:** `promptmaster`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Edu Olivares
- **Category:** search-tools,bookmarks
- **Daily users:** 1
- **Weekly downloads:** 3
- **Version:** 0.5.6
- **Last updated:** 2026-06-19
- **First published:** 2026-05-13
- **Size:** 2.36 MB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/promptmaster/)
- **Website:** [https://eduolihez.com/promptmaster](https://eduolihez.com/promptmaster)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/promptmaster/privacy/](https://addons.mozilla.org/firefox/addon/promptmaster/privacy/)

## Description

<strong>PromptMaster Universal AI Prompt Optimizer</strong> is your ultimate assistant for managing, saving, and using your favorite prompts across major Artificial Intelligence platforms (ChatGPT, Claude, Gemini, DeepSeek, Perplexity, and Copilot).

Tired of losing your best prompts or having to copy and paste them from a notepad? PromptMaster integrates an intuitive side panel (sidebar) where you can store and organize all your commands.

<strong>Key Features:</strong>
* <strong>Secure Local Storage:</strong> Save all your prompts directly in your browser. We do not collect or send your texts to any external server.
* <strong>Direct Injection:</strong> We add native buttons to the interfaces of your favorite AIs. With a single click, you can save the prompt you just wrote or insert one from your library.
* <strong>Simple Organization:</strong> Quickly find the perfect prompt for every situation.
* <strong>Multi-Platform Support:</strong> Works seamlessly with ChatGPT, Anthropic Claude, Google Gemini, DeepSeek, Perplexity, and Microsoft Copilot.
* <strong>Integrated Design:</strong> Features a dark/light theme that adapts to your preferences.

Optimize your Artificial Intelligence workflow and never lose a key instruction again. Install PromptMaster and take your productivity to the next level!

## Rankings

- #111,927 — Overall
- #82 — optimize
- #158 — prompt
- #173 — deepseek

## Permissions and access

### Permissions

- `activeTab`
- `sidePanel`
- `storage`
- `contextMenus`
- `clipboardWrite`

### Host permissions

- `https://api.promptly.fyi/chromeext/*`
- `https://api.gumroad.com/*`

### Content script matches

- `chat.openai.com`
- `chatgpt.com`
- `claude.ai`
- `www.perplexity.ai`
- `chat.deepseek.com`
- `gemini.google.com`
- `copilot.microsoft.com`
- `<all_urls>`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/promptmaster)