✨ Prompt Enhancer & RTL Fix

A Chrome extension that turns rough ideas into well-structured, effective prompts for LLMs — with a bonus automatic RTL/LTR text-direction fix for Persian and Arabic text on AI chat platforms.

Overview

Prompt Enhancer adds an "Enhance Prompt" button next to text inputs on your favorite AI chat platforms. When clicked, the selected provider (OpenRouter or Groq) refines the text into a strong, self-contained prompt and inserts it back into the input — ready to send. It also detects Persian/Arabic text on the page and fixes its direction and alignment automatically.

Features

• ✨ Prompt Enhancement — restructures rough input into clear, actionable prompts while preserving intent, language, and tone
• 🔀 Provider Choice — switch between OpenRouter and Groq with a segmented toggle
• 🧠 Model Picker — custom dropdown with badges (Default / Free / Fast / Versatile / Reasoning) for each provider
• 💾 Secure Storage — API keys and preferences saved per provider via chrome.storage.sync
• 🌐 RTL/LTR Auto-Fix — Persian/Arabic text is detected and rendered right-to-left with the Vazirmatn font
• ⌨️ Keyboard Shortcut — Ctrl+Shift+E (or Cmd+Shift+E on macOS) enhances the focused input
• 💬 Inline Feedback — gradient button with a spinner while processing, plus glass-style success/error toasts
• 🎨 Modern UI — dark-first popup with gradient accents and full light-mode support

Screenshots

Popup — provider, model, and API key settings:

Enhance Prompt button next to the input:

Supported Models

Groq (default provider)

Model	Model ID
Qwen 3.8 27B (default)	qwen/qwen3.8-27b
Llama 3.3 70B (Versatile)	llama-3.3-70b-versatile
Llama 3.1 8B (Fast)	llama-3.1-8b-instant
Llama 4 Maverick 17B	meta-llama/llama-4-maverick-17b-128e-instruct
Llama 4 Scout 17B	meta-llama/llama-4-scout-17b-16e-instruct
Kimi K2 (Reasoning)	moonshotai/kimi-k2-instruct
GPT OSS 120B	openai/gpt-oss-120b
GPT OSS 20B (Fast)	openai/gpt-oss-20b
Qwen 3 32B	qwen/qwen3-32b
Qwen 3.6 27B	qwen/qwen3.6-27b

OpenRouter

Model	Model ID
OpenRouter Free Router (default)	openrouter/free
Dots3 Note Preview	dots-studio/dots-3-note-preview:free
Liquid LFM 2.5 2.6B	liquid/lfm-2.5-2.6b:free
NVIDIA Nemotron 3.5 Lightning	nvidia/nemotron-3.5-lightning:free
Thinking Machines Inkling	thinkingmachines/inkling:free
Poolside Laguna S 2.1	poolside/laguna-s-2.1:free
Cohere North Mini Code	cohere/north-mini-code:free
GLM 5.2	z-ai/glm-5.2:free
MiniMax M3	minimax/minimax-m3:free

💡 Saved models that are later removed by a provider automatically fall back to the default — no stale-model errors.

Installation

1. Download the repository — download it as a ZIP file and extract it to your local machine (or clone it with git clone).
2. Open the Extensions page — navigate to chrome://extensions/ in Chrome.
3. Enable Developer mode — toggle the "Developer mode" switch in the top-right corner.
4. Load unpacked — click the "Load unpacked" button in the top-left corner.
5. Select the extension directory — browse to the extracted folder and select it.
6. Done — Prompt Enhancer & RTL Fix now appears on the Extensions page. Pin it to the toolbar for quick access.

Usage

1. Configure the provider

• Click the Prompt Enhancer icon in the Chrome toolbar to open the popup.
• Pick a provider (OpenRouter or Groq) using the segmented toggle.
• Enter the matching API key and choose a model from the dropdown.
• Click Save Settings — the key and model are stored per provider.

2. Enhance a prompt

1. Navigate to a supported site (ChatGPT, Claude, Gemini, DeepSeek, Perplexity, Copilot, Grok, and many more) and an Enhance Prompt button appears near the input:

   

2. Write your rough prompt — or just select part of the text you want improved.

3. Click Enhance Prompt (or press Ctrl+Shift+E while the input is focused). The button shows a spinner while processing:

   

4. The input is replaced with the enhanced prompt, and a success toast appears. You can also Revert to the original text at any time:

   

Keyboard Shortcut

Action	Windows / Linux	macOS
Enhance current prompt	Ctrl+Shift+E	Cmd+Shift+E

Important Notes

• Provider API key required — create an OpenRouter key at openrouter.ai/keys or a Groq key at console.groq.com/keys.
• API usage — model availability, free-tier limits, and pricing can change; check the provider's model page before use.
• Error handling — missing keys, invalid keys, rate limits, and unavailable models are reported via an inline toast with guidance.
• Selection-aware — if text is selected inside the input, only the selection is enhanced.

Contributing

Contributions are welcome! Feel free to fork this repository, make your changes, and submit a pull request.

License

Released under the MIT License.