Proof

Proof is a macOS application that helps you proofread, rewrite, and summarize text using AI. It integrates seamlessly into your workflow via macOS Services and supports any OpenAI-compatible API (ChatGPT, Gemini, Ollama, etc.).

Features

• Menu Bar Application: Always accessible from the menu bar.
• Quick Shortcut:
  • Proofread (Cmd+Shift+P by default): Instantly processes selected text, proofreads it, and replaces it in-place.
• Customizable Backend: Works with any OpenAI-compatible API.

Installation

Downloading

The latest version of built, signed, and notarized macOS binary can be downloaded from the "Releases" section.

Building from Source

1. Clone the repository:
2. Open Proof.xcodeproj in Xcode.
3. Ensure the target is set to My Mac.
4. Build and Run (Cmd+R).

Configuration

Before using the app, you must configure your AI provider settings.

1. Click the Proof icon in the menu bar (document icon).
2. Enter your API details:
   • API URL: The base URL for the API (e.g., https://api.openai.com/v1).
   • API Key: Your secret API key.
   • Model: The model name to use (e.g., gpt-4o, gemini-2.5-flash).
3. Click Test Connection to verify.
4. Click Save.

Usage

Menu Bar

Click the menu bar icon to open the main popover. From here you can:

• Enter or paste text manually.
• Select a proofreading goal.
• Process the text and copy the result.
• Access settings.

macOS Services

Select any text in any application (Notes, TextEdit, Browser, etc.), then select an option from the Services Menu (or use a shortcut):

• Proofread (Cmd+Shift+P by default): Instantly processes selected text, proofreads it, and replaces it in-place.

Tip: You can change keyboard shortcut to this service in System Settings > Keyboard > Keyboard Shortcuts > Services > Text.

Requirements

• macOS 15.0 or later.
• An API Key from an OpenAI-compatible provider (ChatGPT, Gemini, Ollama, etc.).

License

Licensed under Apache 2.0 license.