Show HN: Promptix – send selected text to any LLM from Mac apps with one hotkey

2 days ago 1

Beta version

Write faster, translate instantly, polish your text,and build custom prompts for your own tasks.

Promptix App Preview

Supporting AI services

and other compatible with OpenAI SDK


Use cases

Automate routine tasks and free up time for more important tasks.Use the product in any application.

Fix Grammar

Automatically fix grammar and spelling without breaking your flow.

Translate

Instantly translate selected text to any language with a single shortcut.

Generate text

Create emails, posts, and notes in seconds.

Feature

Create your own prompts for your tasks and use them anytime


API Key

Use your own API keys without limits on the number of requests

5 built‑in prompts

Translate, Rewrite, Improve text, Fix grammar, Summarize

Compatible with OpenAI SDK

Use any LLM that supports the OpenAI API format

Pricing

Pricing plans

Start for Free, Unlock Pro

$0 /month

50 requests per day up to 1000 characters per request

Use API key without limits and any models

For everyday AI work on your Mac

$4.99 /month

500 requests per day up to 4000 characters per request

More AI models popular models from OpenAI and Grok


FAQs

Promptix is a tool that allows you to run AI in any app using a hotkey, helping with tasks like instant translation, text polishing, grammar fixes, summarization, and custom prompt creation. It supports macOS and integrates with various AI services.

Select text in any app, press a hotkey, and choose an action like Translate, Rewrite, Improve text, Fix grammar, or Summarize. It sends only the selected data to your chosen AI service via your API key, processing everything directly without storing data externally.

Yes, Promptix is secure. It transmits only the selected data you choose to process, and you have full control over what is sent.

Can I use my own API keys from different AI services?

Yes, you can add your own API keys from services like OpenAI, Anthropic, Google, Mistral AI, DeepSeek, Cohere, or any LLM in OpenAI API format (including local LLMs). This makes usage unlimited and free, as requests go directly to the service without any costs from Promptix.

Can I create custom prompts?

Yes, you can create and save custom prompts for specific tasks, which can be triggered via hotkey just like the built-in ones (Translate, Rewrite, etc.)

What happens if I exceed request limits on the free plan?

If you hit the daily limit without your own API key, you'll need to wait until the next day or upgrade to Pro. Adding your own API key removes all limits, making it free and unlimited.

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