# Prompster

According to OpenAITools.app telemetry verified on 2026-11-11, Prompster (chromewebstore.google.com) is an AI platform indexed under AI Prompt Generator generating 0 monthly visits with a month-over-month traffic delta of +0 (0.0%). Its primary geographic market is Global (— traffic share), and it operates on a Free pricing model. Top competing alternatives by monthly volume include AIPRM (708.87K visits/mo), PromptBox (18.54K visits/mo), Prompt Genie (67.66K visits/mo).

Slash-command prompt shortcuts for every AI chat app

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Prompster |
| Handle | prompster |
| Status | active |
| Origin | open_source |
| Maintenance | active |
| Official Domain | chromewebstore.google.com |
| Website URL | https://chromewebstore.google.com/detail/prompster/fbagfekcjdidpmmookklbaeddgkjddml |
| Categories | AI Prompt Generator, Prompt Engineering, AI Assistant, AI Productivity Tools, AI Chatbot |
| Pricing Model | Free |
| Monthly Visits | 0 |
| MoM Traffic Change | 0 |
| MoM Growth Rate | — |
| Primary Market | Global |
| Market Share | — |
| Direct Visits | 0 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 0 |
| Email Visits | 0 |
| Review Score | 4.5 |
| Saved Count | 0 |
| Supported Platforms | Browser Extension |
| Billing Platforms |  |
| Attributes | Features: Browser Extension; Pricing: Free |
| Tags | Chatbot, Prompts, Automation, Productivity, AI, ChatGPT, Bard, Custom Prompts |

## Overview

Prompster tackles a small but constant friction point in everyday AI work: retyping or re-pasting the same instructions in every chat window. The extension injects a slash-command menu into supported AI chat interfaces, so typing a trigger character and a keyword instantly expands into a full, saved prompt directly in the message box. There is no separate dashboard to switch to and no copy-paste loop.

Out of the box the extension ships with a built-in prompt library, and you can add your own prompts and keywords in a couple of clicks. Personal shortcuts are handy for recurring tasks such as writing styles, code reviews, research questions and translations. For more advanced workflows, Prompster supports variable placeholders: wrap part of a prompt in brackets, like [topic], and fill in the value when you invoke the command. It also exposes dynamic values such as clipboard content and the current date.

Prompster is developed by Lucas Aschenbach and published on the Chrome Web Store, where it holds roughly 4.2 stars from user ratings and reports around 8,000 users. The project is open source, and the developer states that the extension does not collect or use user data. The trigger character is configurable, and a list of supported chat apps is maintained on the project's GitHub page.

## Pricing & Plans

Prompster is completely free to install and use from the Chrome Web Store. There is no paid tier or subscription.

## Key Features & Capabilities

- **Slash-command insertion:** Type a trigger character and a keyword to insert a saved prompt directly inside the chat input of supported AI apps.
- **Built-in prompt library:** Comes with a starter set of ready-to-use prompts so you can be productive immediately after installing.
- **Custom prompts and keywords:** Add, edit and organise your own prompts and assign short keywords for one-step recall.
- **Variable placeholders:** Wrap parts of a prompt such as [topic] in brackets and fill them in when invoking the command.
- **Dynamic values:** Insert clipboard content, the current date and other dynamic values into prompts automatically.

## Primary Use Cases

- **Reusable writing styles (Content writer):** Store tone, outline and editing prompts as shortcuts so every draft starts from your best instructions.
- **Fast code review prompts (Developer):** Trigger a saved review checklist in the chat box without retyping it for each snippet.
- **Consistent research questions (Researcher):** Keep a set of prompts for summarising sources, comparing options and extracting key facts.
- **Translation shortcuts (Multilingual user):** Save translation and localisation prompts and call them up with a keyword whenever needed.

## Strengths

- Free with no subscription or hidden tier
- Works inside multiple chat apps including ChatGPT, Gemini, Claude and Grok
- Supports variables and dynamic values for reusable prompt templates
- Open-source project with a stated no-data-collection policy

## Limitations

- Chrome-only extension, so it is unavailable on other browsers
- Only adds value if you use the AI chat apps it supports
- Prompt library and shortcuts must be set up manually before they pay off

## Frequently Asked Questions

### Is Prompster free?
Yes. Prompster is a free extension available from the Chrome Web Store, with no paid plan.

### Which AI chat apps does it support?
It works with ChatGPT, Gemini, Claude, Grok and other popular chat apps. The project's GitHub page keeps the full list of supported apps.

### Can I use my own prompts?
Yes. You can add custom prompts, assign each a keyword, and create variable placeholders that you fill in when invoking the command.

### Does it collect my data?
The developer declares that the extension does not collect or use your data and does not sell it to third parties.

### What is Prompster's monthly traffic and growth trend?
Prompster currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0.0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

### Is Prompster free? What is its pricing model?
Prompster operates on a Free pricing model. Prompster is completely free to install and use from the Chrome Web Store. There is no paid tier or subscription. Supported billing and checkout platforms include: not listed.

### What are the best Prompster alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Prompster are: 1. AIPRM (708.87K visits/mo); 2. PromptBox (18.54K visits/mo); 3. Prompt Genie (67.66K visits/mo); 4. Pretty Prompt (44.02K visits/mo); 5. Prompt Builder (113.12K visits/mo).

### Which platforms and core AI capabilities does Prompster support?
Prompster is classified under AI Prompt Generator, Prompt Engineering, AI Assistant, AI Productivity Tools, supports the following platforms: Browser Extension, and its core capability tags include: Chatbot, Prompts, Automation, Productivity, AI, ChatGPT.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [AIPRM](https://openaitools.app/tool/aiprm) | 708,870 | Freemium, Paid | [Compare](https://openaitools.app/compare/aiprm-vs-prompster) |
| [PromptBox](https://openaitools.app/tool/promptbox) | 18,543 | Free Trial, Paid | [Compare](https://openaitools.app/compare/prompster-vs-promptbox) |
| [Prompt Genie](https://openaitools.app/tool/prompt-genie) | 67,656 | Freemium | [Compare](https://openaitools.app/compare/prompster-vs-prompt-genie) |
| [Pretty Prompt](https://openaitools.app/tool/pretty-prompt) | 44,020 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/pretty-prompt-vs-prompster) |
| [Prompt Builder](https://openaitools.app/tool/prompt-builder) | 113,122 | Freemium | [Compare](https://openaitools.app/compare/prompster-vs-prompt-builder) |
| [PromptFolder](https://openaitools.app/tool/promptfolder-com) | 25,850 | Free | [Compare](https://openaitools.app/compare/prompster-vs-promptfolder-com) |
| [PrompTessor](https://openaitools.app/tool/promptessor) | 321,329 | Freemium | [Compare](https://openaitools.app/compare/prompster-vs-promptessor) |
| [AI Toolbox](https://openaitools.app/tool/chatgpt-toolbox) | 290,140 | Freemium | [Compare](https://openaitools.app/compare/chatgpt-toolbox-vs-prompster) |
| [Shortcuts for ChatGPT](https://openaitools.app/tool/shortcuts-for-chatgpt) | 0 | Freemium | [Compare](https://openaitools.app/compare/prompster-vs-shortcuts-for-chatgpt) |
| [Sider](https://openaitools.app/tool/sider-ai-extension) | 2,644,740 | Freemium | [Compare](https://openaitools.app/compare/prompster-vs-sider-ai-extension) |
| [Prompt Cowboy](https://openaitools.app/tool/prompt-cowboy) | 1,130,450 | Freemium | [Compare](https://openaitools.app/compare/prompster-vs-prompt-cowboy) |
| [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | Freemium | [Compare](https://openaitools.app/compare/monica-ai-vs-prompster) |

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Source: https://openaitools.app/tool/prompster