ChatTab is an AI writing tool that serves as a native Mac app for ChatGPT, designed to provide a fast and efficient experience for Mac users.

ChatTab is primarily for Mac users who need an efficient ChatGPT API client, especially those who engage in multi-tab conversations and require a markdown experience.

What can I do with ChatTab?

With ChatTab, you can manage multiple conversations through its unique UI, interact with various file formats, and access different models like GPT3.5 and GPT4 without needing to log in.

How much does ChatTab cost?

ChatTab offers a freemium pricing model with a Starter tier that requires no credit card and includes 10,000 tokens, as well as Pro and Max tiers with additional features and token limits.

How is ChatTab different from alternatives?

ChatTab differentiates itself by being a native Mac application that prioritizes speed and usability, offering features like customizable shortcut keys and a focus on user privacy and security.

Does ChatTab have a free trial?

Check ChatTab's site for current trial availability.

ChatTab

Native Mac App For ChatGPT

AI Engineering ToolsFreemiumMacOS

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Domain Rating

Monthly Traffic

Traffic Growth

+0.0%

Launch Date

Jul 2023

Est. Revenue

N/A

Data updated Jul 6, 2026 · Traffic data: SimilarWeb (estimated)

About ChatTab

ChatTab is a powerful ChatGPT API client designed for Mac users, offering a fast and native experience.

Quick facts about ChatTab

ChatTab is an AI tool tracked by Relve in the AI Engineering Tools category. It uses a Freemium pricing model and runs on the web at chattab.app.

The Relve catalog tracks 500+ live tools in AI Engineering Tools. ChatTab is part of the editorial tracking surface, with a Domain Rating of 26 on Ahrefs' authority scale.

Closest alternatives: Abyss Hub, ACE Studio, Actionbook, Action Sync, Adaapt.AI. Compare ChatTab head-to-head with any of these on the /compare surface — same feature axes, pricing tiers, and traffic side-by-side.

Best for: teams looking for ai engineering tools-class capabilities with a freemium entry point. The Relve editorial team refreshes traffic, ranking, and feature data for ChatTab on a rolling 24-hour cycle (last updated Jul 6, 2026), so the numbers above reflect the most recent snapshot of where the tool sits in the market. Traffic figures are SimilarWeb estimates.

Key Features

User Experience

Native Mac App For ChatGPT

ChatTab offers a native application designed specifically for Mac users, ensuring a seamless and efficient experience. This native design contributes to a smaller memory footprint and faster startup speeds, enhancing overall usability.

Unique UI design

The application features a distinctive user interface that prioritizes convenience and speed. Users can easily navigate through multiple tabs to switch between different message conversations, making it intuitive to manage interactions.

Shortcut keys

ChatTab allows users to immediately display the message dialog window using customizable shortcut keys. This feature enhances productivity by enabling quick access to messaging functionalities.

Functionality

ChatGPT API client without login

Users can utilize the ChatGPT API client without needing to log into ChatGPT, simplifying access to the service. This feature allows for a more straightforward user experience while interacting with the API.

Access to various models

ChatTab provides access to multiple models, including GPT3.5, GPT4, and Claude2, through a built-in API key. This flexibility allows users to choose the model that best fits their needs for different tasks.

Chat with various file formats

The Assistant API enables users to chat with various file formats such as PDF, XML, TXT, JSON, CSV, and Markdown. This feature enhances the versatility of the application, allowing users to interact with different types of content seamlessly.

Multi language support

ChatTab supports multiple languages, with adaptations translated using ChatGPT. As the user base grows, the application plans to adapt to even more languages, making it accessible to a global audience.

Security & Privacy

Security & Privacy Friendly

ChatTab emphasizes user privacy and security by not storing any data or tracking logs. This commitment ensures that users can interact with the application without concerns about data misuse.

API Key storage in keychain

The API Key used in ChatTab is securely stored in Apple's keychain, ensuring that it is not sent to any external servers. This feature enhances security by keeping sensitive information local to the user's device.

Local storage of prompts and conversations

Prompts and conversation records are stored locally on the user's device and can be synchronized through iCloud. This feature provides users with control over their data while ensuring easy access across devices.

Markdown Support

Smooth Markdown experience

ChatTab offers a robust Markdown experience, supporting headings, code snippets, ordered and unordered lists, and more. This feature allows users to format their messages effectively, enhancing clarity and presentation.

Prompt Management

Different Tabs for different Prompts

Users can manage different prompts through separate tabs, allowing for organized and efficient interaction with various topics. This feature enhances workflow by enabling quick switching between different conversations.

Custom Prompt

The Pro version of ChatTab allows users to create and manage custom prompts tailored to their specific needs. This feature provides flexibility and personalization, enabling users to optimize their interactions with the AI.