What is ChatGPTCustomizer?
ChatGPTCustomizer is a powerful ChatGPT API browser extension that supports creating and switching between multiple preset profiles, suitable for diverse scenarios such as translation (including multilingual mutual translation), text polishing, content summarization, and language teaching. Users can save and load configuration files in CSV or JSON format, and also import or export complete conversation histories for subsequent analysis. It supports manually setting the role of each response (system/assistant/user), customizing various ChatGPT API parameters, and natively supports the GPT-3.5-Turbo model. Additionally, it offers the “//gpt” shortcut mechanism, allowing users to directly trigger requests in any input box—for example, typing “//gpt tell me a joke” will automatically be replaced by a joke generated by ChatGPT—combined with quick selection and submission features, significantly enhancing human-computer collaboration efficiency.
Key features
It allows you to create, save, and load multiple preset configuration files (such as for translation, polishing, language teaching, etc.), compatible with both CSV and JSON formats;
It provides the “//gpt” shortcut command—simply type this prefix in any web page input box to trigger a ChatGPT request and automatically replace the original text.
Use cases and audience
Developers who need to flexibly customize ChatGPT API behavior, language learners, and content editors
- Multilingual translation (supporting mutual translation between different languages)
- Text proofreading and polishing
- Language teaching assistance
User-inputted text, preset configuration files (CSV/JSON), conversation history JSON files, and API parameter settings
ChatGPT-generated response text, exported conversation history JSON files, and configurable role responses (system/assistant/user)
Frequently asked questions
Does it support the GPT-3.5 Turbo API?
Supports the GPT-3.5 Turbo API.
Can it be quickly invoked in any input box on a webpage?
Supported, enabling quick requests in any input field via the "//gpt" prefix.
How to use
- 01
Enter “//gpt” followed by a command in any input box, such as “//gpt tell me a joke,” and it will automatically be replaced with content generated by ChatGPT
- 02
Create and save multiple preset configuration files (in CSV or JSON format) to suit different purposes
- 03
Import/export conversation history to JSON files for easy analysis or backup
- 04
Adjust the role of each response (system/assistant/user) and ChatGPT API parameters
Official website & sources
Updated on 2026-10-28
