Browser Extension

Optimize your prompts directly in ChatGPT, Claude, Gemini, and other AI interfaces without leaving your browser.

Installation

Install the Refrase browser extension from the Chrome Web Store:

Install from Chrome Web Store

Also available for Firefox and Edge (coming soon).

Features

Context Menu Integration

Right-click any text input to optimize the selected text as a prompt. The extension detects the current AI platform and applies the appropriate model optimizations.

Floating Action Button

A small, unobtrusive button appears near AI chat inputs. Click it to optimize your prompt before sending. The button only appears on supported sites.

Keyboard Shortcut

Press Ctrl+Shift+F (or Cmd+Shift+F on macOS) to optimize the text in the currently focused input field.

Auto-Detection

The extension automatically detects which AI platform you are using and selects the correct target model for optimization.

SiteDetected Model
chat.openai.comGPT-4o (auto-detected from UI)
claude.aiClaude Sonnet 4 (auto-detected from UI)
gemini.google.comGemini 2.5 Pro
poe.comSelected model in sidebar
Other sitesManual model selection via popup

Configuration

Click the Refrase extension icon in your browser toolbar to access settings.

Default Model

Override auto-detection and always optimize for a specific model.

Task Type

Set a default task type (chat, code, analysis, etc.) for context-aware optimizations.

API Key

Enter your Refrase API key to authenticate requests. Get your key from the dashboard.

Floating Button

Toggle the floating action button on or off. The keyboard shortcut always works regardless of this setting.